Audiovisual System Design: NICE PIK 2

Building Wide AV over IP | Hybrid Meeting Solutions | Intuitive Centralized Control

NICE (Nusantara International Convention Exhibition) PIK2 is Indonesia’s largest and most modern MICE (Meetings, Incentives, Conventions, and Exhibitions) venue. Located in the Pantai Indah Kapuk 2 business district, it spans over 40 hectares and offers 130,000 m² of event space, positioning itself as a premier destination for global events.

The development of NICE PIK 2 required a scalable and integrated audiovisual (AV) infrastructure capable of supporting diverse operational scenarios, including public information dissemination, branding activation, and hybrid collaboration environments.

Challenges

The complexity of the site comprising mixed-use public spaces, commercial areas, and event-driven zones necessitated a unified system architecture that balances performance, flexibility, and ease of operation.

Building Wide Audiovisual

Herwin Gunawan and ALTA Integra AV consultant team designed a building-wide audiovisual system was therefore conceived to enable consistent and synchronized delivery of digital content across multiple zones. This system supports dynamic information display and branding strategies, ensuring that visual and audio messaging can be distributed, scheduled, and adapted in real time while maintaining spatial coherence and signal integrity.

Audiovisual over Internet Protocol

At the core of the infrastructure is an AV over IP architecture, which replaces traditional matrix-based analogue audiovisual signal routing with a network-centric approach. This allows for scalable media distribution, flexible routing, and simplified system expansion.

By leveraging standard network protocols, the system enhances interoperability, reduces cabling complexity, and enables centralized management of audiovisual resources across the development.

Hybrid Audiovisual Meeting

To accommodate evolving workplace and event requirements, the design integrates hybrid audiovisual meeting capabilities, enabling seamless interaction between physical and remote participants. The system supports high-quality audio capture, speech intelligibility, and low-latency video transmission, ensuring effective communication across distributed environments.

Operational Excellent

Operational efficiency is achieved through an intuitive centralized control system, designed to abstract technical complexity from end users. A unified control interface enables operators to manage multiple AV subsystems—including audio distribution, visual displays, and meeting environments—through simplified workflows and pre-configured scenarios. This approach minimizes training requirements while ensuring reliable and consistent system performance.

Overall, the audiovisual design at NICE PIK 2 establishes a robust digital backbone that seamlessly integrates technology with the built environment—supporting communication, engagement, and user experience at both architectural and operational levels.

Project Information

• Project: Nusantara International Convention Exhibition (NICE) PIK2

• Location: Jakarta, Indonesia

• Service: Audiovisual System Design

• Scope: Building Wide AV over IP, Hybrid Meeting System

• AV Consultant: Herwin Gunawan - ALTA Integra

• Year: 2025

Worship Lighting Design for Sacred Architecture Makassar Cathedral

Project Overview

For centuries, churches and cathedrals have used light as both a practical and symbolic element of worship. Beyond providing visibility, light helps shape emotional perception, reinforce liturgical symbolism, and create a sense of connection between worshippers and the sacred environment.

The renovation of Makassar Cathedral presented an opportunity to rethink how lighting could support contemporary worship while respecting the architectural identity of one of the city's most important Catholic landmarks. The project focused on enhancing the visual experience of the liturgy, revealing the beauty of the cathedral's architecture, and creating a more contemplative and spiritually engaging worship environment.

The Challenge

The cathedral's architecture is characterized by its dramatic timber vaulted ceiling, Gothic-inspired arches, stained-glass windows, and prominent liturgical focal points. While these elements possess strong architectural character, their visual impact can be diminished without a carefully coordinated lighting strategy.

The challenge was not simply increasing brightness levels. Instead, the design needed to balance multiple objectives:

• Supporting visual requirements for worship and liturgical celebrations.

• Revealing the architectural beauty of the timber roof structure.

• Creating appropriate visual hierarchy between congregation and altar.

• Enhancing the perception of sacred space.

• Improving visual comfort while minimizing glare.

• Preserving a warm and welcoming atmosphere for daily worship.

Lighting Design Approach

The lighting design was developed through a human-centered and liturgically informed approach.

Rather than treating the cathedral as a uniformly illuminated space, the design focused on creating layers of light that support both architecture and worship experience. Special attention was given to the relationship between ambient illumination, architectural lighting, and liturgical focal lighting.

The timber vaulted ceiling was identified as the cathedral's most distinctive architectural feature. Carefully integrated indirect lighting was used to reveal the geometry, depth, and craftsmanship of the roof structure while maintaining visual comfort and minimizing glare.

The lighting strategy also reinforced the natural visual progression from the congregation area toward the sanctuary, altar, crucifix, and liturgical furnishings.

Human-Centered Performance Strategy

Lighting within sacred architecture influences more than visibility. It affects how worshippers perceive space, focus attention, experience emotion, and engage in prayer.

The design considered how people:

• Enter and orient themselves within the cathedral.

• Participate in worship and liturgical celebrations.

• Experience moments of prayer and reflection.

• Perceive architectural scale and sacred symbolism.

• Connect emotionally with the liturgical environment.

A carefully controlled balance between light and shadow was used to create a sense of reverence and spatial depth. By avoiding excessive brightness and maintaining visual hierarchy, the lighting supports contemplation while allowing key liturgical elements to remain visually prominent.

The resulting environment encourages a worship experience that feels calm, dignified, and spiritually meaningful.

Design Integration

The lighting design was closely integrated with architecture, liturgy, and building technology.

Key design strategies included:

• Indirect illumination of the timber vaulted ceiling to emphasize architectural form and spatial grandeur.

• Vertical illumination of columns and arches to reinforce the Gothic character of the interior.

• Liturgical focal lighting to strengthen attention toward the sanctuary and altar.

• High-quality color rendering to reveal natural material textures and stained-glass details.

• Glare-controlled luminaires to improve visual comfort during worship.

• Energy-efficient LED technology to support long-term sustainability and maintenance objectives.

• Flexible lighting control systems to accommodate different liturgical celebrations and worship scenarios.

This integrated approach ensures that the lighting contributes simultaneously to architectural appreciation, liturgical function, and human experience.

Lighting Design Impact

The renovation lighting strategy transformed the cathedral into a more visually coherent and spiritually engaging worship environment.

The illuminated timber ceiling now becomes a defining architectural element, revealing the craftsmanship and verticality of the space. Carefully controlled contrast and visual hierarchy guide attention toward the sanctuary while maintaining a warm and welcoming atmosphere throughout the nave.

Rather than competing with the architecture, the lighting works in harmony with it—supporting worship, enhancing sacred atmosphere, and strengthening the emotional connection between people, architecture, and faith.

The project demonstrates how thoughtful worship lighting design can elevate both liturgical experience and architectural perception, ensuring that Makassar Cathedral continues to serve as a place of prayer, community, and spiritual inspiration for future generations.

Consult Your Lighting Design Project

ALTA Integra is a Building Science and Technology consultancy dedicated to creating human-centered environments through evidence-based design. By studying the relationship between light, sound, space, technology, and human emotion, we help transform buildings into places that inspire wellbeing, strengthen identity, emotional support space, and dedicated for a more sustainable future.

Whether you are designing a place of worship, heritage building, hospitality destination, workplace, educational facility, or public space, our lighting consultancy services help translate design vision into meaningful visual, emotional, and environmental performance.

Sacred Facade Lighting Design of Makassar Cathedral

Project Overview

The sacred facade lighting design for Makassar Cathedral Church was developed to enhance the nighttime identity of one of the city’s important religious landmarks while respecting the spiritual character and historical architectural presence of the church.

Rather than treating facade lighting as a purely decorative element, the project approached light as a medium for reinforcing sacred atmosphere, light as a communication medium, and urban presence after dark.

The design aimed to reveal the architectural beauty of the cathedral in a subtle and respectful manner while improving nighttime visibility, visual comfort, and contextual integration within the surrounding urban environment.

The Challenge

Religious architecture presents unique lighting challenges compared to commercial or entertainment buildings.

The facade lighting needed to:

• Preserve the sacred and contemplative identity of the church

• Avoid excessive brightness and visual aggression

• Respect the surrounding urban environment

• Maintain architectural authenticity

• Enhance visibility without creating glare

• Support nighttime recognition and wayfinding

In many urban environments, facade lighting can easily become overpowering, especially when influenced by commercial lighting approaches that prioritize brightness over atmosphere and architectural sensitivity.

For a cathedral church, the challenge was not to create spectacle, but to create dignity, warmth, and spiritual presence through light.

Additionally, the project had to consider the impact of artificial lighting on nearby residents, urban nighttime ambience, and environmental light pollution.

Preliminary Design Study

Our preliminary design study began with understanding the architectural language and spiritual significance of the cathedral itself. Instead of uniformly illuminating the entire building, the lighting composition was carefully layered to reveal:

• Visual hierarchy

• Sacred focal points

• Architectural depth

• Vertical proportion

• Material texture

The lighting strategy emphasized controlled illumination and selective accentuation to preserve the calm and graceful character of the church facade. Warm color temperature selections were carefully integrated to support a welcoming and contemplative nighttime atmosphere while avoiding harsh visual contrast.

The facade was treated as an architectural canvas where light reinforces form, rhythm, and symbolism rather than overpowering the architecture itself.

Human-Centered Lighting Performance Strategy

The project adopted a human-centered lighting approach that prioritizes visual comfort, emotional perception, and environmental wellbeing. Rather than maximizing brightness levels, the design focused on creating balanced luminance and soft visual transitions that feel comfortable for pedestrians, worshippers, and the surrounding community.

The performance strategy considered:

• Visual comfort at pedestrian level

• Reduction of glare

• Controlled luminance distribution

• Night Time visual adaptation

• Contextual brightness within the surrounding area

• Environmental sensitivity and reduced light spill

The lighting composition was calibrated to ensure that the church remains visually prominent without contributing excessive nighttime brightness to the urban environment.

This approach supports both spiritual atmosphere and healthier nighttime environmental conditions.

Lighting Design Integration Study

The facade lighting system was developed through integration between architectural intent, lighting performance, and environmental context.

Design development included:

• Architectural facade analysis

• Nighttime contextual studies

• Lighting hierarchy planning

• Beam angle optimization

• Material reflectance evaluation

• Visual simulation and rendering validation

By coordinating lighting placement with the architectural composition, the design minimizes visible equipment presence while preserving the integrity of the cathedral facade during daytime conditions.

The result is a lighting system that feels architecturally integrated rather than technically imposed.

Our Lighting Design Impact

The final design establishes Makassar Cathedral Church as a dignified and recognizable nighttime landmark while preserving its sacred identity and architectural character. The facade lighting enhances the perception of depth, warmth, and spiritual presence without relying on excessive illumination or visual spectacle.

Through a contextual and performance-based design methodology, the project demonstrates how architectural lighting can support not only aesthetics, but also human experience, urban sensitivity, and environmental responsibility. The project reflects a broader design philosophy in which lighting becomes an instrument for shaping atmosphere, identity, and meaningful night-time architecture.

Consult Your Lighting Design Project

ALTA Integra is a Building Science and Technology consultancy dedicated to creating human-centered environments through evidence-based design. By studying the relationship between light, sound, space, technology, and human emotion, we help transform buildings into places that inspire wellbeing, strengthen identity, emotional support space, and dedicated for a more sustainable future.

Whether you are designing a place of worship, heritage building, hospitality destination, workplace, educational facility, or public space, our lighting consultancy services help translate design vision into meaningful visual, emotional, and environmental performance.

Hybrid Learning Audiovisual and ICT System Design for Western Sydney University

Project Information

• Project: Western Sydney University

• Location: Surabaya, Indonesia

• Service: Hybrid Learning Audiovisual

• Scope: Audiovisual System Design, Audiovisual Commisioning

• AV Consultant: ALTA Integra

• Year: 2024

Project Overview

Modern education is no longer confined by geography. At Western Sydney University Surabaya, learning extends beyond physical classrooms—connecting students with international lecturers and enabling real-time global collaboration.

This project was designed to support a fully integrated hybrid learning environment, where on-site and remote participants experience the same level of clarity, engagement, and accessibility.

The Challenge

Hybrid education introduces a complex set of performance challenges that go beyond technology alone: Students struggle to clearly hear remote lecturers. Visual content is not equally accessible across the room. Interaction between physical and remote participants feels disconnected. Systems are often implemented without proper spatial and acoustic integration. The investment cost of the Audiovisual Technology meets the owner budget.

Our Approach

We developed a holistic audiovisual ecosystem, where architecture, acoustics, lighting, and AV systems work as one integrated solution. Key System Features: Real-time video conferencing (Zoom-enabled learning spaces). Clear audio capture and uniform sound distribution. Seamless content sharing (BYOM / wireless presentation). Flexible system supporting multiple teaching scenario. This creates one unified platform adaptable to lectures, discussions, and collaborative sessions.

Spatial Performance Strategy

Every learning space was engineered to deliver consistent performance: Capture both lecturer and student interaction clearly. Ensure intelligible sound throughout the room. Provide optimal visual accessibility for all users. Equalize experience between on-site and remote participants. The result is a balanced, inclusive learning environment—not just a connected one.

Design Integration

This project’s performance was driven by strong interdisciplinary collaboration: Cushman & Wakefield oversaw project management, interior, and lighting design; Iwan Prasetyo delivered acoustic strategies for optimal speech clarity; and NDY engineered MEP systems for seamless integration of technology within the space.

Outcome

Students and educators benefit from: Clear and reliable communication. Equal access to global teaching resources. Higher engagement and sustained focus. A more inclusive and effective learning experience. Hybrid education becomes not just functional—but transformational.

Based on the WSU AV Guidelines and Pedagogy, together with WSU Project Leader, Technology Advisor and Lecturer and multi-discipline design team we succeeded in developing the Education Audiovisual over Internet Protocol System Design for the entire campus at Western Sydney University Surabaya.

Let’s optimize your space for hybrid education.
Design beyond technology. Deliver performance through integration.

Sacred Liturgical Lighting Design for Maria Bunda Kita Catholic Church PIK2

When Light Becomes Architecture

Before the first hymn is sung, before a prayer is spoken, and before the liturgy begins, a sacred building has already started its conversation with every visitor who enters.

The towering nave stands in quiet anticipation. Warm light gently washes across stone walls, revealing the depth of carved ornamentation and the rhythm of soaring Gothic arches. Vertical illumination draws the eye naturally toward the sanctuary, while carefully balanced shadows preserve a sense of mystery and reverence. Nothing competes for attention, yet every architectural element finds its rightful place within a carefully orchestrated visual hierarchy.

Nothing is moving. Yet the architecture feels alive.

This is not merely illumination. It is architecture communicating through light.

For generations, lighting has often been treated as the final engineering layer of a building—a calculation of illuminance levels, fixture spacing, and energy consumption. While these technical parameters remain essential, they represent only a fraction of what light can achieve within sacred architecture.

My lighting design proposal begins with a different premise: light is an architectural material, not simply an electrical system.

“Your word is a lamp to my feet and a light to my path.”

— Psalm 119:105

Just as stone defines permanence and timber expresses craftsmanship, light gives architecture its emotional dimension. It reveals materiality, articulates spatial geometry, guides visual attention, establishes liturgical hierarchy, and creates the atmosphere through which worshippers perceive and experience the sacred. Carefully composed luminance, controlled contrast, vertical illumination, high-fidelity color rendering, and seamless integration with daylight transform a church from a functional enclosure into a place of contemplation, gathering, and spiritual encounter.

This approach reflects a broader evolution within contemporary church design. Premium churches are increasingly engaging specialized architectural lighting consultants alongside architects, liturgical planners, acousticians, audiovisual specialists, and building physicists—not because lighting has become more complex, but because expectations have become more human-centered.

Today, the question is no longer simply "How many lux does a church require?"

The more meaningful question is: "How should light shape the worship experience?"

The answer extends far beyond visibility. It encompasses visual comfort, architectural expression, liturgical symbolism, emotional resonance, broadcast readiness, energy performance, and ultimately, the wellbeing of every person who enters the space.

In the most successful sacred buildings, lighting is not designed to illuminate architecture. It is designed to complete it.

The Five Layers of Sacred Architectural Lighting

Designing Light as an Architectural and Liturgical Experience

Exceptional sacred lighting is rarely the result of selecting premium luminaires alone. It is the outcome of a carefully layered design strategy in which every beam of light serves a distinct architectural, liturgical, and human purpose. Much like an orchestra, where each instrument contributes to a harmonious composition, every lighting layer plays a specific role in shaping how a sacred space is perceived and experienced.

My lighting concept proposal is founded on five integrated layers of sacred architectural lighting, each working together to create a visually comfortable, emotionally resonant, and spiritually meaningful environment. Rather than treating the church as a uniformly illuminated volume, this approach composes light through hierarchy, contrast, materiality, and adaptability—allowing architecture itself to become the medium through which light communicates.

Ambient Lighting — Establishing Visual Comfort

The first layer creates the visual foundation of the space. Ambient lighting provides balanced horizontal and vertical illuminance that supports visual adaptation, minimizes glare, and establishes an atmosphere of calm. Instead of overwhelming the interior with excessive brightness, it creates a soft luminous envelope where occupants immediately feel relaxed and visually comfortable. The objective is not simply to achieve target illuminance levels, but to create an environment where the eyes can effortlessly adapt and remain comfortable throughout the liturgy.

Architectural Lighting — Revealing the Soul of the Building

Architecture deserves to be experienced in three dimensions, not flattened by uniform illumination. Architectural lighting reveals the rhythm of arches, the elegance of vaults, the monumentality of columns, the texture of natural stone, and the craftsmanship embedded within every ornamental detail. Through techniques such as wall grazing, wall washing, and concealed uplighting, light becomes a storytelling medium that celebrates the architect's vision while reinforcing the building's spatial identity.

Liturgical Lighting — Directing Worship Through Light

In sacred architecture, not every element should command equal attention. Liturgical lighting establishes a deliberate visual hierarchy that guides worshippers instinctively toward the altar, crucifix, ambo, tabernacle, and celebrant. This hierarchy is achieved not through excessive brightness but through carefully controlled luminance contrast—one of the most powerful tools in architectural lighting. By orchestrating focal glow against a calm visual background, light naturally directs attention without distracting from the solemnity of worship.

Accent Lighting — Revealing Sacred Art and Craftsmanship

Sacred art is both theological expression and cultural heritage. Sculptures, stained-glass windows, Stations of the Cross, and handcrafted liturgical elements deserve lighting that faithfully reproduces their color, texture, and artistic intent. This layer emphasizes high color fidelity through advanced metrics such as Color Rendering Index (CRI) and TM-30, ensuring that every material is perceived with richness, depth, and authenticity. Here, light does not merely illuminate artwork—it allows craftsmanship to speak.

Dynamic Lighting — Adapting to the Rhythm of Worship

A contemporary church is a dynamic environment that hosts diverse liturgical celebrations and community events, each requiring a distinct visual atmosphere. From the quiet contemplation of daily Mass to the dramatic symbolism of the Easter Vigil, from weddings and funerals to concerts and livestreamed services, lighting must adapt seamlessly to changing functions. Intelligent lighting control systems enable pre-programmed scenes, smooth dimming transitions, and synchronized operation, allowing the architectural narrative to evolve throughout the liturgical calendar while maintaining consistency, operational efficiency, and an exceptional worship experience.

Together, these five layers transform lighting from an engineering service into an architectural language. They demonstrate that the success of sacred lighting is measured not simply in lux, watts, or fixture counts, but in how effectively light reveals architecture, supports liturgy, enhances human comfort, and elevates the spiritual experience. In the most memorable churches, light is not an accessory to architecture—it is one of its defining materials.

Sacred Lighting and Digital Worship

Designing a Church for Both the Congregation and the Camera

A century ago, sacred lighting was designed for a single audience—the worshippers gathered within the sanctuary. Today, every celebration extends far beyond the church walls. A Sunday Mass may be experienced simultaneously by hundreds of people seated in the nave, thousands joining via livestream, and countless others through photography, television broadcasts, or social media.

The modern church has evolved into a hybrid worship environment, where architecture, liturgy, and digital communication converge.

This transformation introduces a new design challenge. Lighting must no longer satisfy only the human eye; it must also perform flawlessly for camera sensors, projection systems, LED displays, and broadcast technologies. A sanctuary that appears visually stunning to occupants may produce harsh shadows, inaccurate skin tones, flickering images, or poor projection contrast on camera if lighting is not designed with digital media in mind.

My lighting concept is founded upon an Integrated Sacred Lighting Framework that synthesizes Richard Kelly's layered lighting philosophy, IES principles of visual hierarchy and vertical illuminance, Human-Centered Lighting, and the Integrated Design Process into a single multidisciplinary strategy. Rather than treating architectural lighting, audiovisual engineering, and broadcast systems as independent disciplines, they are conceived as one coordinated ecosystem.

This integrated approach ensures that every worship experience—whether perceived directly within the sanctuary or remotely through cameras and digital platforms—preserves the same sense of reverence, visual clarity, architectural expression, and liturgical focus.

This requires far more than increasing illumination levels. It demands careful control of vertical illuminance to provide natural facial modeling for celebrants and choir members, camera-friendly correlated color temperature (CCT) that faithfully reproduces skin tones, and high-fidelity color rendering evaluated through both CRI and TM-30 to preserve the richness of liturgical vestments, sacred artwork, timber, and natural stone.

Equally important is the technical integration behind the scenes. Flicker-free luminaires compatible with high-frame-rate cameras eliminate visual artifacts during livestreams. Balanced luminance ratios maintain projection readability without compromising architectural ambience. Lighting scenes are synchronized with audiovisual systems and intelligent controls, enabling seamless transitions between Mass, weddings, concerts, special liturgical celebrations, and broadcast productions.

In this new era of worship, lighting is no longer a discipline operating independently from audiovisual technology. It becomes the bridge between the physical sanctuary and the digital congregation, ensuring that the sacred atmosphere experienced by those inside the church is faithfully conveyed to those participating remotely.

The measure of success is not simply a beautiful interior or a technically perfect broadcast.

Light should perform consistently across three dimensions: for architecture, for people, and for cameras. Only when these three perspectives are designed as one integrated system can a sacred space deliver a worship experience that is equally authentic in the sanctuary and across digital platforms.

Case Study — Maria Bunda Kita Catholic Church PIK2

Where Architecture, Light, and Human Experience Converge

Some buildings impress through their scale. Others inspire through their craftsmanship.

The most memorable sacred buildings achieve something far more profound—they move people through an invisible choreography of light, sound, space, and silence.

The Maria Bunda Kita Catholic Church PIK2 represents this new generation of sacred architecture. Conceived with a monumental Gothic-inspired architectural language, the church reinterprets the timeless principles of verticality, materiality, and sacred symbolism through contemporary building technology. Every arch, rib vault, stone surface, and liturgical element contributes to a spatial composition that invites both visual discovery and spiritual contemplation.

Yet architecture alone does not create this experience. It is the orchestration of light that transforms the building from a beautifully constructed space into a living place of worship.

Our lighting concept proposal was developed from a simple conviction: light should reveal architecture without competing with it. Rather than making luminaires visible, the design allows the architecture itself to become the primary visual expression.

The lighting strategy employs concealed architectural uplighting that gently traces the soaring Gothic arches and ribbed vaults, emphasizing the building's remarkable verticality while preserving the purity of the architectural composition. Warm indirect illumination softly grazes textured stone surfaces, creating depth, shadow, and visual richness that cannot be achieved through uniform downlighting alone. Instead of flattening the space, light sculpts it.

“Light creates ambience and feel of a place, as well as the expression of a structure.”

— Le Corbusier

A carefully balanced vertical illuminance strategy further enhances spatial perception. By illuminating walls, columns, and vaulted ceilings—not merely the floor plane—the interior appears brighter, larger, and more welcoming without increasing overall energy consumption. The result is an environment that feels naturally luminous rather than artificially bright, allowing occupants' eyes to adapt comfortably as they move through the sanctuary.

At the heart of the composition lies a deliberate luminance hierarchy. The altar, crucifix, ambo, and sanctuary become the unmistakable visual focus through calibrated luminance contrast rather than excessive illuminance. This subtle hierarchy directs attention instinctively toward the liturgical center, reinforcing the theological significance of the sacred rites while preserving the contemplative character of the surrounding space.

Materiality is equally celebrated through light. High-fidelity illumination with excellent Color Rendering Index (CRI) and advanced TM-30 performance faithfully reproduces the warmth of natural stone, timber finishes, sacred sculptures, liturgical furnishings, and stained-glass artistry. Every material retains its authentic color, texture, and craftsmanship, allowing architecture to communicate with honesty and depth.

Equally important is what visitors do not perceive. Glare is meticulously controlled through concealed luminaire placement, carefully selected beam optics, and balanced luminance ratios. The transition from daylight to interior lighting feels effortless, minimizing visual adaptation stress and supporting prolonged visual comfort throughout worship. The lighting never calls attention to itself; instead, it quietly enables occupants to focus on the architecture, the liturgy, and one another.

The church also reflects the realities of contemporary worship. Beyond serving the congregation within the nave, the sanctuary functions as a sophisticated hybrid environment supporting livestream broadcasts, photography, projection, and integrated audiovisual systems. Lighting scenes are designed to accommodate diverse liturgical moments—from intimate weekday Masses and solemn funeral services to festive Christmas celebrations, Easter liturgies, weddings, concerts, and digital broadcasts.

Large audiovisual displays are integrated with remarkable restraint. Rather than dominating the interior, they remain visually subordinate to the altar through careful control of luminance balance and projection contrast. Flicker-free lighting, camera-appropriate vertical illuminance, and consistent color quality ensure that worshippers joining remotely experience the same architectural atmosphere and liturgical focus as those physically present within the church.

What makes Maria Bunda Kita Catholic Church PIK2 particularly significant is not any single lighting technique, but the integration of multiple disciplines into one cohesive human-centered strategy. Architecture establishes the spatial narrative. Lighting reveals its form and meaning. Acoustics preserve clarity and serenity. Audiovisual technology extends participation beyond the physical sanctuary. Together, these systems create an environment where building performance serves human experience rather than technological display.

This multidisciplinary approach reflects a broader evolution in contemporary sacred design. The success of a church can no longer be evaluated solely by architectural beauty, lighting levels, acoustic metrics, or technological sophistication in isolation. It must be measured by how seamlessly these disciplines work together to support worship, enhance wellbeing, and create an atmosphere of reverence.

In the end, the most successful sacred buildings are those where technology becomes almost invisible.

Visitors may never notice the concealed uplighting, the carefully calibrated luminance hierarchy, the optimized vertical illuminance, the acoustically balanced environment, or the integrated audiovisual infrastructure.

They simply leave with a lasting impression that the space felt peaceful to the eyes, quiet to the ears, comfortable to the body, and deeply meaningful to the soul.

That is the true measure of human-centered sacred architectural lighting.

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Beyond Illumination

The world's greatest sacred buildings are remembered not only because of their architecture, but because of the way they shape light into meaning. Stone gives a church permanence, yet light gives it life. It transforms geometry into atmosphere, craftsmanship into revelation, and worship into an experience that resonates long after the service ends.

“The light shines in the darkness, and the darkness has not overcome it.”

— John 1:5

For today's premium churches, developers, and design professionals, architectural lighting is no longer a finishing layer applied at the end of a project. It is a strategic design discipline that must be integrated from the earliest stages—working alongside architecture, acoustics, audiovisual systems, daylighting, and building physics—to create spaces that are visually inspiring, emotionally restorative, spiritually meaningful, and enduring in their cultural value.

Sacred Façade Lighting Design for Maria Bunda Kita Catholic Church PIK2

Vision: A Landmark for Faith, Community, and Cultural Harmony

Maria Bunda Kita Catholic Church was envisioned as more than a place of worship. It forms an integral part of the broader vision for Pantai Indah Kapuk 2 (PIK2), a new waterfront city masterplanned to create a vibrant destination where people can live, work, gather, and connect. The development brings together residential neighborhoods, commercial districts, tourism destinations, public open spaces, and civic landmarks into a cohesive urban environment that encourages both community life and cultural diversity.

Within this vision, the church is positioned as one of the defining civic landmarks of the township. Rather than standing in isolation, it is carefully integrated into a network of lakeside promenades, public plazas, and pedestrian-friendly spaces, allowing the church to become not only a spiritual destination for Catholics but also an architectural landmark that enriches the public realm.

A particularly meaningful aspect of the PIK2 masterplan is its commitment to celebrating Indonesia's cultural and religious diversity. Major houses of worship, including the Maria Bunda Kita Catholic Church and a prominent mosque, are intentionally located within the same civic district. This urban planning strategy reflects a vision of coexistence, where different faith communities share public spaces while maintaining their own distinct identities. Together, these landmarks symbolize mutual respect, harmony, and peaceful dialogue, reinforcing Indonesia's long-standing values of religious tolerance and social unity.

For the Maria Bunda Kita Catholic Church, this setting elevates its role beyond serving a parish congregation. The church is envisioned as a destination for worship, pilgrimage, reflection, and community gathering, while simultaneously contributing to the identity of PIK2 as a multicultural waterfront city. Through its monumental architecture, welcoming public spaces, and integration with the surrounding urban landscape, the project demonstrates how sacred architecture can enrich both the spiritual life of its community and the civic character of a modern city.

This broader vision also shaped the design approach adopted by the project team. Every aspect of the church—from its architecture and landscape to its acoustics, lighting, and audiovisual systems—was considered as part of a unified experience that supports worship while creating an inspiring, comfortable, and inclusive environment for both daily liturgy and major religious celebrations.

Architectural Background: A Contemporary Basilica Rooted in Timeless Tradition

"Architecture is the learned game, correct and magnificent, of forms assembled in the light." — Le Corbusier

Few building typologies carry as much symbolic weight as a church. Beyond sheltering a congregation, sacred architecture has long served as a physical expression of faith, memory, and hope—where stone, light, and proportion become a language that transcends words. From the great basilicas of Rome to the Gothic cathedrals of France, Europe's ecclesiastical masterpieces have inspired generations of architects to pursue buildings that elevate both the human spirit and the urban landscape.

Maria Bunda Kita Catholic Church at Pantai Indah Kapuk 2 (PIK2) continues this enduring tradition. Conceived as one of the defining landmarks within the waterfront development, the church draws inspiration from the classical architectural vocabulary of European basilicas while responding to the needs of a contemporary Indonesian Catholic community. Rather than replicating history, the design reinterprets centuries of sacred architectural principles through a modern lens, creating a place where timeless symbolism and present-day worship coexist.

Its composition is immediately recognizable. Monumental proportions establish a sense of permanence, while a carefully balanced symmetrical layout creates visual order and harmony. Rising above the composition is a majestic central dome, complemented by richly articulated façades, sculptural religious ornamentation, and luminous stained-glass windows that transform daylight into an ever-changing tapestry of color and devotion. Every architectural element contributes to a building that communicates reverence long before one steps inside.

The influence of Classical and Gothic traditions is particularly evident in the building's vertical composition. As the medieval architect and theologian Abbot Suger, whose vision profoundly shaped Gothic architecture, believed, sacred buildings should lift both the eyes and the soul toward the divine through the transformative power of light. That philosophy continues to resonate in Maria Bunda Kita Catholic Church, where soaring architectural forms guide one's gaze heavenward, expressing humanity's timeless aspiration to seek something greater than itsel

Lighting Scenario 18.00 to 22.00

Lighting Scenario 22.00 to 12.00

Among the church's most commanding features are its four monumental towers, each rising approximately 65 meters above the surrounding landscape. Visible from across the expanding PIK2 waterfront, these towers are designed not merely as architectural ornaments but as enduring urban landmarks. Throughout history, church towers have served as points of orientation for cities, announcing the presence of faith within the civic fabric. Here, they once again become beacons on the skyline, their elegant silhouettes reinforcing the church's role as both spiritual destination and architectural icon.

The scale of the sanctuary reflects this civic ambition. Designed to accommodate approximately 1,640 worshippers, Maria Bunda Kita Catholic Church is among the largest Catholic worship spaces in the Greater Jakarta region. Yet despite its monumental capacity, the architecture aspires to preserve an atmosphere of intimacy and contemplation. Large congregational celebrations, daily Eucharistic services, weddings, solemn liturgical seasons, sacred music performances, and moments of personal prayer are all envisioned within a space carefully proportioned to nurture both collective worship and individual reflection.

The development extends well beyond the sanctuary itself. Rather than functioning as an isolated church building, the project has been envisioned as an integrated ecclesiastical campus composed of three complementary precincts. At its heart stands the main church, the principal setting for liturgical celebrations and communal worship. Adjacent to it, the Rectory (Pastoran) provides residence and pastoral facilities for the clergy, supporting the church's ongoing ministry and community life. Completing the ensemble is Maria Plaza & Chapel, an inviting outdoor gathering space anchored by a smaller devotional chapel that offers opportunities for quiet prayer, processions, fellowship, and spiritual reflection amid the surrounding landscape.

Together, these three components create a destination that extends beyond the traditional understanding of a parish church. They form a place where architecture supports not only worship but also hospitality, community, pilgrimage, and cultural engagement. Public plazas invite visitors to linger, landscaped spaces encourage contemplation, and the sacred architecture establishes a dialogue with the broader waterfront city beyond.

As the poet Rainer Maria Rilke once wrote, "The only journey is the one within." Maria Bunda Kita Catholic Church is conceived as the architectural setting for that inward journey. Through enduring architectural language, carefully composed proportions, and spaces shaped by light, it seeks to offer every visitor—not only a destination within the city—but also a place where the human spirit can pause, reflect, and quietly ascend toward the transcendent.

Sacred Exterior Lighting Design: Illuminating Faith, Hope, and Welcome

"Light is the first element of design; without light there is no color, form, or space." — Thomas E. Farin

When daylight fades, architecture begins a second life.

A church that inspires beneath the tropical sun must also speak with quiet dignity after sunset. Yet illuminating a sacred building is never about making it brighter. It is about revealing its meaning. In the tradition of great cathedrals, light becomes an invisible material—one that shapes emotion, guides perception, and transforms stone into a vessel of faith.

For Maria Bunda Kita Catholic Church at Pantai Indah Kapuk 2, ALTA Integra approached the architectural façade lighting design as more than an architectural exercise. Every lighting decision was conceived to express the church's spiritual identity while reinforcing its Gothic-inspired architecture and civic presence within the Ecopark waterfront city.

At the heart of the design lies the very name of the church: Maria Bunda Kita—Our Mother Mary. Across centuries of Christian art and architecture, Mary has been portrayed as a source of compassion, protection, and unconditional love. Rather than relying on dramatic theatrical effects, the lighting composition embraces these same qualities through a carefully balanced orchestration of warmth, softness, and visual harmony. The church does not dominate the night; instead, it extends a gentle invitation. Like a mother waiting with open arms, the illuminated exterior becomes a quiet gesture of welcome—for the faithful returning home, for pilgrims seeking spiritual comfort, and for visitors encountering the church for the first time.

This philosophy echoes the words of the Lebanese poet Kahlil Gibran, who wrote, "Tenderness and kindness are not signs of weakness and despair, but manifestations of strength and resolution." The nighttime presence of Maria Bunda Kita is therefore not defined by spectacle, but by grace. Its illumination communicates reassurance rather than grandeur, inviting every passerby to pause, reflect, and feel embraced by the serenity of the sacred.

Integrated Special Lighting Design for Sacred Architecture

As a Special Lighting Design Consultant in Indonesia, ALTA Integra approached the project by integrating architectural lighting design, sacred liturgical lighting, and human-centered visual experience into a single cohesive design strategy. Every luminaire, beam angle, color temperature, mounting location, and control scene was carefully coordinated with the architectural composition to reveal the church's form without distracting from its sacred character. This integrated approach transforms lighting into an extension of architecture, reinforcing both spiritual symbolism and visual identity.

Equally important is the dialogue between light and architecture. Inspired by the enduring language of Gothic ecclesiastical design, the church's soaring vertical composition naturally directs the eye upward. ALTA Integra's lighting strategy reinforces this architectural narrative by allowing the illumination to ascend with the building itself. Each successive level is perceived as progressively lighter, more delicate, and increasingly transparent, visually reducing the apparent mass of the towers while celebrating their elegant proportions. The composition culminates at the highest architectural elements, where light appears to dissolve into the night sky, subtly expressing the timeless Christian symbolism of humanity's journey toward heaven.

This vertical choreography recalls the profound insight of Louis Kahn, who observed, "The sun never knew how great it was until it hit the side of a building." At night, carefully composed artificial light assumes that same role. It reveals the architecture not by overwhelming it, but by uncovering the rhythm of columns, the depth of cornices, the texture of stone, and the graceful silhouette of every tower against the darkness.

Rather than concealing the church's classical inspiration, the exterior lighting celebrates it. Rich architectural details, sculptural ornamentation, stained-glass compositions, and monumental proportions are revealed with restraint, allowing the building's craftsmanship to emerge naturally through layers of light and shadow. This approach preserves the dignity of the architecture while avoiding visual excess, ensuring that every illuminated element contributes to a coherent architectural story.

Lighting Simulation and Lighting Mock-Ups

The lighting design process included architectural lighting simulations, luminaire evaluation, visual hierarchy studies, and nighttime scene development to verify that every illuminated surface achieved the desired balance between emphasis, contrast, and visual comfort. Lighting mock-ups were also considered as part of the design verification process to evaluate material reflectance, color rendition, and visual perception under real-world conditions.

Digital lighting simulation enabled the design team to evaluate façade brightness, beam distribution, vertical illumination, glare control, and architectural composition before construction, reducing project risks while ensuring that the completed church would perform exactly as envisioned.

Energy-Efficient Landmark Lighting

Although the church presents a monumental nighttime presence, sustainability remained an important design consideration. High-efficiency LED luminaires, intelligent lighting control systems, and carefully selected beam optics minimize energy consumption while maximizing architectural expression. The restrained lighting composition also respects the surrounding public realm by avoiding excessive brightness and unnecessary light spill, allowing the church to remain a dignified landmark within the Ecopark waterfront environment.

Yet the design also looks beyond tradition. Advanced lighting control systems introduce remarkable flexibility, allowing the church to adapt its visual identity for different liturgical seasons, religious celebrations, civic commemorations, and special occasions. The building can quietly transform from the contemplative atmosphere of Holy Week to the joyful brilliance of Easter, from the warmth of Christmas celebrations to moments of national remembrance, all while preserving its architectural integrity. This adaptability bridges the timeless language of classical sacred architecture with the possibilities of contemporary lighting technology, ensuring that the church remains both historically rooted and future-ready.

Within the broader Ecopark waterfront masterplan, the illuminated church assumes an even greater civic role. As dusk settles over the lake, landscaped promenades, plazas, and surrounding public spaces, the church becomes a luminous point of orientation within the multi-faith city. It stands not in isolation but in conversation with the surrounding urban landscape, contributing to a shared public realm where architecture encourages dialogue, coexistence, and mutual respect among diverse communities. The illuminated towers become a familiar beacon on the skyline, offering both physical orientation and symbolic reassurance within the evolving city.

The celebrated Mexican architect Luis Barragán once remarked, "Light gives us the possibility of expressing emotions." At Maria Bunda Kita Catholic Church, those emotions are not merely aesthetic; they are deeply spiritual. Light reveals the architecture, while architecture gives physical form to faith, allowing both to shape an experience that transcends the building itself.

Why Sacred Lighting Design Requires Specialist Expertise

Unlike conventional exterior architectural lighting, sacred lighting design must balance theology, liturgical function, architecture, human perception, and technical performance. Every design decision influences how worshippers experience the building emotionally and spiritually. At ALTA Integra, this multidisciplinary process combines architectural lighting design, building physics, visual comfort, daylight integration, acoustics, and audiovisual coordination to create worship environments where architecture, light, and technology support one another as a unified whole.

Ultimately, the success of sacred façade lighting cannot be measured only in lux levels, uniformity ratios, or illuminated surfaces. Its true achievement lies in what people feel when they arrive.

For the Catholic community, the illuminated church becomes more than a landmark. It is a visible reminder that the doors of faith remain open long after sunset. It is a beacon of hope for pilgrims searching for peace, a welcoming embrace for families gathering in prayer, and a symbol of the enduring presence of Christ and the loving intercession of Maria Bunda Kita within the life of the Church.

As evening descends upon the waterfront, the harmony of light, architecture, and the surrounding public realm quietly fulfills its highest purpose—not simply illuminating a building, but illuminating the path that leads people home.

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Design Challenges: Balancing Vision, Faith, and Practicality

Every landmark project begins with a vision. Bringing that vision to life, however, is rarely a straightforward journey. Sacred architecture is among the most complex building typologies because it must satisfy not only architectural aspirations but also liturgical traditions, technical requirements, financial realities, and the expectations of an entire faith community.

For Maria Bunda Kita Catholic Church, the design process became a thoughtful exercise in balancing these often-competing priorities while preserving the church's spiritual identity.

A Shared Vision Shaped by Many Voices

"A great building must begin with the immeasurable." — Louis I. Kahn

Unlike commercial developments where decision-making may rest with a limited group of stakeholders, a major church project naturally involves a much broader circle of contributors. The developer, architects, clergy, parish representatives, liturgical advisors, engineers, consultants, and future users each brought valuable perspectives, shaped by their own experience, priorities, and understanding of what a contemporary Catholic church should represent.

Some emphasized theological symbolism and liturgical function. Others focused on architectural expression, operational practicality, long-term maintenance, construction feasibility, or financial stewardship. Each perspective was legitimate, and each reflected a genuine commitment to creating a church worthy of its congregation.

As the project evolved, these diverse aspirations occasionally pointed in different directions. Architectural elements were discussed, refined, reconsidered, and adjusted as the design sought to accommodate a wide range of expectations. The resulting architecture therefore became not the expression of a single design philosophy, but the outcome of a collaborative process built upon dialogue, compromise, and mutual respect.

For the design team, the challenge was not simply to satisfy individual requests, but to preserve a coherent architectural language amid numerous design revisions. Maintaining the clarity of the church's identity while integrating multiple stakeholder aspirations required careful judgment, patience, and continuous collaboration throughout the design process.

Ultimately, successful sacred architecture is rarely the product of one voice. It is the result of many voices finding harmony.

Designing Through Value Engineering

Every ambitious project eventually encounters the realities of construction economics.

Following the completion of the design development, the project underwent a comprehensive quantity surveying process. As detailed cost estimates were prepared, it became evident that the initial design exceeded the allocated construction budget. This marked the beginning of one of the most demanding phases of the project: value engineering.

Too often, value engineering is misunderstood as a process of simply reducing costs. In reality, effective value engineering is about protecting the essential design intent while identifying more efficient ways to achieve it.

For Maria Bunda Kita Catholic Church, every proposed adjustment required careful evaluation. Architectural features, façade materials, lighting systems, construction methods, and technical specifications were reviewed not only for their financial impact but also for their influence on the church's architectural character and worship experience.

For ALTA Integra, the challenge extended beyond selecting alternative lighting products. Every modification had the potential to affect the visual hierarchy of the façade, the perception of architectural depth, maintenance requirements, energy performance, and the symbolic narrative communicated through light. The objective was therefore not merely to reduce cost, but to preserve the emotional and spiritual qualities of the lighting design while responding responsibly to budget constraints.

This collaborative process demanded close coordination between the developer, architect, quantity surveyor, and engineering consultants. Through careful prioritization and technical refinement, the team sought solutions that balanced architectural ambition with construction practicality, ensuring that every design decision continued to serve the project's long-term vision.

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Conclusion: Where Architecture Becomes Light, and Light Becomes Faith

Sacred architecture has always been more than the art of constructing beautiful buildings. At its highest aspiration, it creates places where the physical world gently gives way to the spiritual—where stone, proportion, light, and silence work together to elevate the human experience beyond the ordinary.

The façade lighting design of Maria Bunda Kita Catholic Church embraces this timeless tradition while responding to the aspirations of a contemporary waterfront city. Rather than treating light as a decorative layer applied after the architecture is complete, ALTA Integra integrated illumination into the architectural narrative itself. Every lighting decision was guided by the desire to reveal the church's identity, celebrate its Gothic-inspired verticality, express the nurturing love embodied in Maria Bunda Kita, and establish a dignified nighttime presence that enriches both worship and the surrounding urban landscape.

Within the Ecopark multi-faith district of PIK2, the illuminated church becomes more than a recognizable landmark. It becomes a symbol of welcome, harmony, and hope—an enduring reminder that thoughtful design can strengthen not only the visual identity of a city but also the emotional and spiritual connection between people and place.

As the American architect Louis I. Kahn beautifully observed, "A great building must begin with the unmeasurable, must go through measurable means when it is being designed, and in the end must be unmeasurable." Sacred lighting follows the same philosophy. While it is engineered through calculations, simulations, and precise technical coordination, its greatest success lies in what cannot be quantified: the sense of peace, reverence, belonging, and inspiration experienced by every person who approaches the church after sunset.

Ultimately, the measure of this project is not found in the luminaires concealed within the architecture, but in the quiet moments they help create—moments when architecture speaks without words, and light gently guides the heart toward the sacred. This Church Lighting Design demonstrates how architectural lighting can strengthen liturgical experience while reinforcing the church's role as an urban landmark.

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Create Sacred Spaces That Inspire Generations

Every sacred building tells a story. Architecture gives that story its form, while light reveals its meaning.

As one of Indonesia's specialist Lighting Design consultancies, ALTA Integra collaborates with architects and developers to deliver integrated architectural lighting, sacred lighting, and special lighting solutions for projects throughout Indonesia and Southeast Asia.

At ALTA Integra, we believe that churches, cathedrals, temples, mosques, and other places of worship deserve more than functional illumination. Every sacred building deserves an environment where architecture, light, acoustics, and technology work together to deepen worship and enrich the spiritual experience. They deserve integrated building performance design that respects theology, enhances liturgy, celebrates architecture, and creates meaningful experiences for every worshipper.

Our multidisciplinary approach seamlessly integrates Worship Audiovisual & Livestream System Design, Sacred Architectural Lighting Design, Sacred Acoustics Design, Psychoacoustics, and Daylight & Visual Comfort Analysis to create immersive worship environments that engage both the senses and the spirit. Unified through our Human-Centered Building Performance methodology and aligned with LEED and WELL Building Standards, every solution balances spiritual experience, technical excellence, and sustainable building performance.

Working collaboratively with architects, religious institutions, developers, and project stakeholders, we transform complex technical systems into cohesive environments where worship, community, and architecture become one.

Whether you are planning a new cathedral, restoring a historic church, renovating a worship hall, or creating a contemporary sacred landmark, ALTA Integra is ready to help you shape spaces that inspire faith today and leave a meaningful legacy for generations to come.

Let's illuminate architecture with purpose, elevate worship through thoughtful design, and create sacred environments where every beam of light serves a higher calling.

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Project Information:

• Developer: Agung Sedayu Group

• Architect: Hawawinata & Associates

• Acoustic, Lighting & Audiovisual Consultant: ALTA Integra

• MEP: Mecosystech

• Structure: Grand Optima

Makassar Cathedral: A Preliminary Study of Its Architectural History

Understanding the cathedral’s architectural evolution and historical significance to inform acoustic and lighting design.

Introduction: Understanding the Building Before Designing

Before considering acoustic and lighting interventions at Makassar Cathedral, I began by studying its architectural history. Every intervention takes place within a building that already has its own character shaped by earlier design decisions, successive transformations, and the people who have worshipped there. Understanding that history provides an essential foundation for deciding how new work can contribute sensitively to the cathedral’s future.

Officially known as the Church of the Sacred Heart of Jesus (Gereja Hati Yesus Yang Mahakudus), Makassar Cathedral is a place of worship whose architecture has evolved alongside its community. Across generations, its spaces have accommodated prayer, liturgical celebrations, and significant moments in the lives of its congregation. Its historical significance therefore extends beyond its façade and architectural style to the continuity of worship and the memories associated with the building.

This preliminary study asks three questions: what has changed, what remains, and what gives the cathedral its identity? Examining its successive architectural forms helps reveal how each generation responded to new needs while maintaining a connection to the church’s past. It also provides a basis for identifying features and spatial relationships that deserve particular consideration in future interventions.

For my subsequent acoustic and lighting work, this historical understanding establishes the context for design. Before determining how the cathedral should sound or be illuminated, I wanted to understand how it became the place it is today and which qualities should continue to shape its experience for generations to come.

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Historical Context: The Cathedral and Its Community

Makassar Cathedral, officially known as Gereja Hati Yesus Yang Mahakudus or the Church of the Sacred Heart of Jesus, stands on Jalan Kajaolalido in central Makassar, South Sulawesi. Its significance extends beyond the congregation that worships there regularly. As the cathedral of the Archdiocese of Makassar, it houses the archbishop’s cathedra, or episcopal chair, and serves as a gathering place for major celebrations of the wider Catholic community. This role was evident during preparations for Archbishop Fransiskus Nipa’s installation in October 2024, when representatives from parishes across the archdiocese were expected to gather there.

The community’s history reaches further back than the present building. The archdiocese’s historical account traces Catholic activity in South Sulawesi to the sixteenth century and describes Makassar as a refuge for Catholics arriving from Portuguese Malacca during the seventeenth century. War and the subsequent consolidation of Dutch control disrupted this presence. The circumstances that eventually produced today’s cathedral emerged much later: colonial permission for Catholic missionaries to reside in Makassar was granted in 1891, followed by the arrival of Father A. Asselbergs, SJ, in 1892. His residence established a more regular basis for pastoral care and the gradual growth of the community.

A permanent place of worship became an important next step. In 1895, land and a house were purchased on Komedistraat, now Jalan Kajaolalido, at the location of the present cathedral. Historian Ahmad Yunani’s study records that the acquisition was supported by money borrowed from religious sisters in Semarang. The same study dates the church’s construction to 1898–1900. These beginnings reveal a building made possible through both local initiative and support from a wider Catholic network.

As the congregation expanded, the original building became inadequate. The parish’s published building history gives a particularly useful explanation of the enlargement initiated in 1939: the church had approximately 200 seats, insufficient for the assembled congregation, while its small sacristy and lack of confessionals and side altars also limited liturgical arrangements. The response involved alterations to the side walls, an enlarged sacristy behind the sanctuary, and additional facilities for worship. The expansion therefore addressed both the number of people attending and the practical requirements of parish life.

Adaptation continued in later decades. The parish account records that the balcony was replaced and enlarged in 1984 to accommodate approximately 120 people. This intervention illustrates how the cathedral’s capacity developed through successive adjustments, alongside the more conspicuous changes to its external appearance.

The recent expansion belongs to this longer history of responding to community needs. In 2018, church leadership and the council decided to pursue a further enlargement as the congregation continued to grow. Construction remained underway in October 2024, according to the parish priest’s contemporary account, and the cathedral was formally dedicated and inaugurated on 30 October 2025. By December 2025, the parish priest described the new worship space as accommodating approximately 1,000–1,200 people, with supplementary areas available for larger celebrations.

For my preliminary architectural study, this history suggests that the cathedral’s identity should be understood through the relationship between its building and its community. Successive generations have inherited a place of worship and adapted it to sustain their shared religious life. Understanding those decisions helps explain why the architecture changed—and provides a foundation for considering which qualities should remain meaningful as the cathedral continues to evolve.

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The First Architectural Form: Neo-Gothic Origins

The earliest architectural form of Makassar Cathedral established a recognisable Gothic Revival character through its pointed openings, decorated gables, and slender pinnacles. Historical photographs show a relatively compact church whose architectural identity depended on the relationship between a simple main volume and carefully articulated details. These images provide an important starting point for understanding the building before its subsequent enlargements.

Construction and the People Behind the Building

Ahmad Yunani’s historical study places construction between 1898 and 1900, following the acquisition of the site in 1895. This chronology provides a useful working framework, although accounts differ on the precise commencement date. It should therefore be distinguished from a fully verified sequence of groundbreaking, construction, first use, and blessing.

The parish’s published building history attributes the original design to Swartbol, a military engineering officer. According to this account, he departed for Europe after the foundations had been completed. Responsibility then passed to S. Fischer, an irrigation specialist, while Thio A Tek, a Chinese contractor, undertook the construction. The same account records a delay while iron window frames were awaited from the Netherlands. These details reveal a building process involving several contributors and imported components, although their precise appointments and the spelling of their names remain subject to archival confirmation.

Reading the Original Façade

An early frontal photograph, catalogued by the Tropenmuseum collection as dating from 1900–1920, shows a composition organised around a central entrance. Above the doorway, a pointed decorative gable contains openwork ornament. Higher on the façade, a circular opening sits beneath the apex of the main gable, which is crowned by a cross. Slender pinnacles frame the composition and extend its upward emphasis.

The façade balances a broad, grounded wall surface with a sequence of vertical accents. The doorway establishes the human scale of arrival, while the ornament above it draws attention towards the upper façade. Its sense of height comes partly from this arrangement of openings, pinnacles, and the crowning cross.

Proportions, Openings, and Roofline

An oblique photograph catalogued as 1900–1919 reveals the building’s elongated body beneath a pitched roof. Tall, narrow pointed-arch windows recur along the side elevation, separated by projecting vertical wall elements. Small pinnacles punctuate the upper edges, while a slender open metal turret rises above the roof. Together, these features establish a repeated rhythm along the church’s length.

The parish history describes approximately twenty miniature towers as roof-edge ornament, alongside a small iron tower. This written description broadly corresponds with the repeated pinnacles visible in the early photographs.

Architectural Character and Religious Identity

Taken together, the photographs support describing the early church as Neo-Gothic in its architectural vocabulary. Pointed arches, pinnacles, openwork ornament, and the prominent cross gave the building a recognisable ecclesiastical character. This description concerns the features visible in the historical record.

For my historical study, the significance of this first form lies in how these elements worked together. I read the repeated vertical accents and rising central composition as expressions of aspiration, while the clearly defined entrance connected that symbolic character to the everyday act of entering a place of worship. This is an architectural interpretation of the surviving images, rather than a documented statement of the original designer’s intentions.

Understanding this early composition provides a reference for examining later transformations: which proportions and details survived, which were replaced, and how the cathedral’s religious identity remained legible as its architecture changed.

Makassar’s Roman Catholic church, now Makassar Cathedral, photographed between 1900 and 1919. Photographer unknown. Collectie Wereldmuseum (formerly Tropenmuseum), inventory TM-10016679, via Wikimedia Commons. Licensed CC BY-SA 3.0.

The Second Architectural Form: Expansion and a Changing Architectural Character

By the late 1930s, Makassar’s Catholic congregation had outgrown its original church. The parish’s building history records approximately 200 seats, insufficient to accommodate the community, together with a sacristy that had become too small and a need for confessionals and side altars. The enlargement addressed these practical requirements while substantially changing the building’s architectural composition.

The works are generally associated with the 1939–1941 period, although their precise chronology remains unresolved. Ahmad Yunani’s historical study identifies alterations beginning in 1938–1939 and completion in 1941. The parish account, however, states that Easter was celebrated in the renovated church in 1940. These sources establish the late-1930s transformation, but do not provide a consistent date for its completion.

Expanding the Space for Worship

The parish account describes alterations to both side walls, the removal of four supporting pillars, and an enlarged sacristy behind the sanctuary. Two confessionals were introduced at the rear and two side altars at the front. These interventions responded to the different activities taking place within the church, from collective worship to preparation for Mass and individual confession.

Government heritage documentation provides further insight into the widening of the building. It describes additions along the northern and southern sides of the congregation’s space, incorporating formerly external columns into the interior and relocating pointed coloured-glass windows to the new outer walls. This account suggests that the enlargement reused elements of the earlier architectural arrangement.

From an Ornamental Gable to a Dominant Entrance Tower

The most conspicuous external change was the introduction of a substantial tower connected directly to the entrance. The parish history records the removal of the separate iron bell tower on the southern side and its replacement by this integrated tower.

Comparing the early frontal photograph with C.J. Taillie’s photograph from 1948 reveals a different visual hierarchy. Previously, the central gable, circular opening, and slender pinnacles organised the façade. In the later image, the entrance tower was added to the composition, with broad wall surfaces, vertically arranged openings, and a steep, faceted roof.

The transformation also simplified the silhouette. The numerous small pinnacles prominent in the early views no longer define the visible roofline. Nevertheless, pointed openings and portions of the gabled church body remain evident beside the tower. The resulting architecture combined a more substantial entrance composition with features that continued to recall the earlier church.

Interpreting the Architectural Change

The simplified surfaces and stronger geometric composition may invite comparison with Art Deco-era architecture. For this study, however, that remains a visual interpretation. The available heritage documentation describes the tower as a simplification of Gothic form, while Yunani’s research emphasises the building’s combination of architectural influences. A categorical description of the entire second form as Art Deco would therefore require stronger evidence.

For my preliminary study, the importance of this phase lies in the relationship between architectural change and community use. Enlarging the worship space altered the building’s boundaries, while the new entrance tower changed its public appearance. The cathedral acquired another historical layer through the practical task of accommodating a growing congregation. Understanding that layer helps identify both the continuity of its religious identity and the physical changes through which that continuity was sustained.

Makassar Cathedral in 1948, following the late-1930s enlargement. Photograph by C.J. (Cees) Taillie. Collectie Wereldmuseum (formerly Tropenmuseum), inventory TM-10029315, via Wikimedia Commons.

The Third Architectural Form: Contemporary Expansion

The cathedral’s contemporary expansion began with a familiar challenge: accommodating a growing congregation within a building shaped by earlier generations. According to the project account, church leadership and the council decided in 2018 to pursue an enlargement. The building committee subsequently organised a design-selection exercise, described as a beauty contest, to compare proposals for the cathedral’s future development. Publicly available information does not establish the participating architects, assessment criteria, or winning submission, so the process is best described as a selection of design proposals rather than a verified open architectural competition.

The Relationship Between Historic and New Architecture

The resulting development introduced substantial new construction behind the cathedral’s retained front section. In October 2024, parish priest Father Yulius Malli explained that much of the building was new, while a smaller portion at the front remained because of its heritage status. He also confirmed that construction was still approaching completion as preparations proceeded for Archbishop Fransiskus Nipa’s installation. The cathedral’s appearance in 2024 therefore represents an advanced stage of development, rather than a confirmed completion date.

The accompanying 2024 photograph makes this relationship visible. The familiar central entrance tower remains in the foreground, framed by the broader architecture behind it. Two substantial flanking towers, capped with open metal spires and crosses, establish a wider composition. Pointed arches, paired windows, decorative arcading, and pitched roofs connect the new work visually with the cathedral’s earlier Gothic-inspired vocabulary.

In my reading of this composition, the retained tower acts as a recognisable historical reference within a larger architectural ensemble. Its continuity is particularly evident at the entrance, while the expanded building changes the scale and silhouette of the cathedral beyond it. This visual relationship does not, however, establish how much original material survives elsewhere in the building.

Continuity and Change in Scale and Massing

The second architectural form concentrated attention on a single entrance tower. The contemporary expansion distributes that emphasis across a broader frontage and several vertical elements. The new flanking towers extend the composition laterally, while the larger roof and wall surfaces behind the historic front indicate a substantial increase in building volume.

Although this is a contemporary construction phase, its external language continues to use historical church forms. The pointed openings and spires create a visual connection with the cathedral’s architectural past. Their repetition at a larger scale gives the expanded church a more monumental presence, while allowing the older entrance to remain identifiable.

Worship-Space Organisation and Circulation

The enlarged complex also introduced a more layered arrangement for accommodating worshippers. Reporting from Christmas 2024 described provision for approximately 700 people in the hall and another 500 in the basement, with arrivals directed downstairs when the hall reached capacity. These figures describe the arrangements reported during that construction period; they should not be treated as a verified final seating schedule.

This arrangement suggests that circulation became an important part of how the expanded cathedral operated. Arrival, distribution between worship areas, and movement between levels had to support a congregation extending beyond one room. The frontal photograph shows the retained central doorway and approaches to either side, but it cannot establish the complete internal routes. A detailed assessment of processional movement, accessibility, and connections between old and new spaces would require floor plans and site observation.

Understanding the Heritage Implications

The transformation also requires a distinction between architectural resemblance and the retention of historic fabric. In his 2024 archaeology thesis at Universitas Hasanuddin, Aditya Joseph Mesalayuk reported the replacement of significant building elements and identified a reduction in heritage value. His abstract also records positive responses among community respondents and notes that some new elements followed the earlier building’s character. These are findings from one academic study, rather than a comprehensive conservation verdict, but they are relevant to understanding the expansion.

For my preliminary historical study, the third form presents both continuity and substantial change. The cathedral maintains a recognisable entrance and familiar religious imagery while accommodating worship within a much larger complex. Understanding this relationship provides the context for subsequent acoustic and lighting design: identifying the spaces now in use, the historic features that remain, and the architectural qualities through which the congregation continues to recognise its cathedral.

Makassar Cathedral during its contemporary expansion, 2024. This panoramic photograph shows the historic central entrance tower against the broader new church composition and its flanking towers. Photo: Herwin Gunawan’s project documentation.

Reading the Three Architectural Layers

Makassar Cathedral’s architectural history can be understood through three principal forms: the early Neo-Gothic church, the enlargement associated with the late 1930s and early 1940s, and the contemporary expansion initiated by the 2018 decision. Each responded to community needs while changing the relationship between the worship space and its public appearance.

These phases provide a useful framework, but they do not represent three buildings that remained unchanged between major transformations. The parish history also records wartime damage in 1943, subsequent glazing repairs, a ceiling replacement in 1978, and a balcony enlargement in 1984. The cathedral’s development therefore includes smaller interventions within the three broader architectural layers.

Scroll horizontally to view all five columns.

Architectural phase	Community needs	Architectural character	Principal changes	Surviving features and continuity
First form: early church, generally dated 1898–1900	Establishing a permanent place of worship for the developing Catholic community.	Early photographs show pointed openings, an ornamented entrance gable, small pinnacles, and a slender roof turret: a recognisable Neo-Gothic vocabulary.	Construction of the original church following the acquisition of the site.	Gothic-inspired forms recur in later phases. The surviving fabric attributable specifically to 1900 requires an element-by-element survey; resemblance alone cannot establish its age.
Second form: late-1930s enlargement, associated with 1939–1941	Increasing capacity beyond approximately 200 seats and improving liturgical facilities.	A substantial entrance tower became the dominant feature, accompanied by a simpler silhouette and retained Gothic elements. “Art Deco” remains an unverified stylistic interpretation.	Alteration of side walls, enlargement of the sacristy, introduction of confessionals and side altars, and replacement of the separate iron bell tower with an integrated entrance tower.	The recognisable front tower and façade composition remain visible within the contemporary ensemble. This establishes continuity of form, rather than proof that every component is unchanged.
Third form: contemporary expansion, documented in 2024	Accommodating a larger congregation and distributing worshippers across additional spaces.	The 2024 photograph shows a broader composition, prominent flanking towers, metal spires, and repeated pointed arches surrounding the historic frontage.	Substantial new construction behind the retained front section, with expanded worship accommodation and basement use.	The historic frontage remains a reference point. Much of the expanded architecture is new, including elements that echo earlier forms.

Sources: the early chronology follows Yunani’s study; the first two forms are documented in museum photographs and parish history; the contemporary phase is supported by the project account, the parish priest’s 2024 interview, and the supplied photograph.

Distinguishing Evidence from Interpretation

Historical records and photographs answer different questions. The parish account documents why enlargement was necessary and identifies particular alterations. Dated photographs establish the building’s visible appearance at a given time. Descriptions such as “more monumental,” “stronger vertical emphasis,” or “visual continuity” are architectural interpretations of that evidence.

A similar distinction applies to surviving features. An old window relocated into a new wall, a repaired historic tower, and a newly constructed pointed arch each express a different relationship with the past. Their appearance may be related, but their material histories are not interchangeable. For this study, I therefore distinguish between retained fabric, altered historic elements, and new work that refers to earlier architecture.

This distinction is particularly relevant to the recent expansion. Aditya Joseph Mesalayuk’s 2024 archaeology thesis reports the replacement of significant elements and a resulting reduction in heritage value, while also recording positive community responses. Its findings indicate that continued religious use and visual familiarity can coexist with the loss of historic material.

Where Does the Cathedral’s Identity Reside?

My interpretation is that Makassar Cathedral’s identity emerges from its accumulated history. The first church established its early architectural expression; the second form reshaped the building for an expanding community; and the third introduced a larger setting for contemporary worship. Each contributes to how the cathedral is understood today.

That accumulated identity does not make every alteration equally significant or every loss replaceable. Surviving materials, workmanship, and liturgical objects provide evidence that photographs and stylistic references cannot fully substitute. A separate 2025 study by Pramesty Inriana Ritto identifies historically valuable architectural elements and liturgical artefacts, reinforcing the importance of documenting the cathedral beyond its external appearance.

In this preliminary study, the task is therefore to understand both the continuity of worship and the physical evidence of change. Reading these layers together provides a basis for recognising what remains significant—and for making subsequent acoustic and lighting decisions with a clearer understanding of the building they will serve.

Heritage Significance: What Should Guide Future Intervention?

Understanding Makassar Cathedral’s history establishes a basis for deciding what future interventions should protect. Its significance resides in several connected qualities: surviving architectural fabric, evidence of craftsmanship, the arrangement of spaces for worship, and the congregation’s continuing relationship with the building. The Nara Document on Authenticity offers a useful framework for this assessment, recognising that heritage value can be expressed through materials, design, use, traditions, setting, and the meanings associated with a place.

Architectural Features, Materials, and Craftsmanship

The retained entrance tower and frontage deserve particular attention because they allow the earlier cathedral to remain recognisable within the expanded complex. Their significance includes the relationship between the tower, entrance, adjoining gables, and approach from the forecourt. The parish priest’s 2024 account identifies the front section as the portion retained because of its heritage status.

A more detailed assessment should examine the surviving masonry and finishes, door frames, decorative mouldings, column capitals, glazing, bells, and liturgical objects. Pramesty Inriana Ritto’s 2025 research identifies architectural elements and older religious artefacts as important subjects for documentation. Its publicly accessible contents list includes the entrance doors, bells, capitals, stained glass, early bricks and floor tiles, and a baptismal vessel. These references provide a starting point for an inventory, although they do not establish the present condition or exact provenance of every item.

Material investigation should look beyond surface appearance. Brick dimensions, mortar composition, joinery, tool marks, metal fittings, inscriptions, and traces of earlier finishes may help explain how an element was made and subsequently altered. For design purposes, these details should be recorded before cleaning, repainting, covering, or attaching equipment to potentially significant surfaces.

Distinguishing Early Fabric from Later Layers

The cathedral’s history cautions against treating everything that appears old as part of the original church. The parish account records three donated bells in 1923, the construction of an integrated entrance tower during the late-1930s enlargement, damage to glazing behind the altar in 1943, and subsequent donations of coloured glass for the side windows. It also records a timber ceiling replacement in 1978 and a balcony enlargement in 1984. These later contributions belong to the cathedral’s history, but require their own dates and explanations.

The working record should therefore distinguish:

• Early surviving fabric: elements attributable to the first construction through documentary and physical evidence.

• Later historic additions or repairs: work associated with subsequent periods, assessed for its own significance.

• Relocated or reused elements: historic objects or components retained within a changed setting.

• Reconstructed or newly made elements: features recreated from evidence, or new designs drawing on earlier forms.

• Elements of uncertain date: items requiring further investigation before attribution.

A new pointed arch may recall the earlier cathedral without being a reconstruction of a particular lost feature. Similarly, an old window installed in a new wall retains material history while its spatial context changes. Recording these distinctions makes the building’s evolution more understandable.

The Congregation’s Memories and Ritual Life

The cathedral is also a setting for lived religious experience. A heritage assessment should ask clergy, long-standing parishioners, musicians, sacristans, and other users which places, objects, and practices they associate most strongly with it. Baptisms, marriages, funerals, processions, communal singing, and private prayer provide useful subjects for these conversations. Their particular meaning at Makassar should be documented through testimony rather than assumed.

Community responses may also differ. Aditya Joseph Mesalayuk’s 2024 study reported positive responses to the expansion among its respondents while identifying losses of heritage significance. This finding suggests that appreciation of improved accommodation can coexist with concern for historic fabric. Neither perspective should be taken as a complete account of the congregation’s attachment to the cathedral.

Spatial relationships deserve similar attention: the sequence from forecourt to entrance, views towards the sanctuary, routes used during liturgy, and the relationship between communal worship and quieter devotional areas. Comparing earlier plans with present use would help establish which relationships survive and which have changed.

Priorities for Sensitive Design

These findings establish a practical sequence: document significance, identify vulnerabilities, and then develop interventions. This approach is consistent with the Burra Charter’s emphasis on understanding a place before changing it and limiting alteration to what is necessary to sustain its significance and use.

The resulting design priorities would be to retain and repair significant fabric where feasible; assess material compatibility before introducing new finishes; and place services where they cause the least disturbance to historic elements and important views. Removable installations should be preferred where practicable, with their actual effect on the substrate checked rather than assuming they are reversible.

For subsequent acoustic and lighting work, this means evaluating mounting locations, cable routes, treatment areas, and maintenance access alongside performance requirements. Mock-ups can help the church and design team assess visual impact before permanent installation. The historical study thus becomes a basis for specific decisions: improving the congregation’s experience while keeping the cathedral’s surviving evidence and accumulated meanings legible.

From Historical Understanding to Acoustic and Lighting Design

The historical study provides a starting point for the next design stage by identifying which architectural qualities require particular care and where further investigation is needed. At Makassar Cathedral, successive changes to the building’s walls, glazing, ceiling, and worship spaces mean that its present environment reflects several periods of construction. The parish record of replacement glazing and later ceiling and balcony alterations reinforces the need to examine each element individually before proposing interventions.

For acoustic design, the next step is to relate this understanding to the cathedral’s existing geometry and materials. Room volume, ceiling height, surface finishes, seating, and connections between spaces should be surveyed and represented in acoustic analysis. Measurements and modelling can then inform the balance between speech intelligibility and the resonance appropriate for singing. Historical photographs help explain earlier configurations, we then make acoustic modeling to understanding reverberation times on first and second architecture.

For interior lighting design, the historical study directs attention to daylight openings, stained glass, architectural proportions, and the relationship between the historic frontage and the expanded worship space. These elements help establish which architectural details and spatial relationships deserve particular care. Daylight should be observed at different times of day and under varying weather conditions to understand how it illuminates the interior, reveals materials, and influences views towards the sanctuary.

This understanding provides a basis for integrating electric lighting around the altar, ambo, crucifix, circulation routes, and the congregation’s reading needs. The lighting composition should support the visual hierarchy of worship while allowing the surrounding architecture to remain legible. Particular attention should be given to glare, the visibility of faces and texts, and transitions between brighter and quieter areas. Lighting scenes can accommodate different liturgical activities, with luminaires, wiring, and maintenance access coordinated to minimise disturbance to significant fabric. ChurchCare’s guidance similarly emphasises natural-light variation, the direction and quality of illumination, and testing within the actual building.

For façade lighting design, the investigation extends beyond the cathedral to the surrounding nighttime environment. Light from neighbouring buildings, streetlights, commercial signs, and passing vehicles should be assessed from the principal approaches and public viewpoints. Their brightness, colour, direction, and operating hours establish the context in which the cathedral is seen and help determine the illumination needed to make its architecture readable.

The historical study can then guide how light reveals the retained entrance tower, adjoining gables, pointed openings, and newer flanking towers. Their relative prominence should be considered carefully so that the historic frontage remains identifiable within the expanded composition. On-site lighting trials can assess the balance of light and shadow, the appearance of materials, and the visibility of fixtures. The aim is a coherent nighttime presence that respects the cathedral’s architectural layers while limiting glare, light spill towards neighbouring properties, and unnecessary upward light.

Equipment integration connects both disciplines to heritage care. Loudspeakers, luminaires, acoustic treatments, wiring, and controls should be coordinated with the significance and condition of their proposed locations. Mounting details require particular attention: an installation may be visually discreet yet still damage an important surface. Existing service routes and suitable newer construction should be assessed as opportunities to reduce disturbance, while maintaining access for inspection and replacement.

For my work, historical understanding therefore helps define the design brief alongside the congregation’s practical and liturgical needs. It guides what to investigate, what to protect, and how proposed changes should be evaluated.

Understanding the cathedral’s architectural evolution provides the foundation for improving its performance while respecting its identity.

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References and Image Sources

The references below identify the published sources cited in this account. Repository links provide the accessible abstracts and supporting files for the academic studies.

1. Paroki Hati Yesus Yang Mahakudus—Katedral Makassar, “Gedung Gereja”. Parish building history.

2. Keuskupan Agung Makassar, “Gereja Lokal KAMS 75 Tahun” (2012). Historical context for the Catholic community.

3. Ahmad Yunani (2017), “Gereja Hati Yesus Yang maha Kudus–Katedral (sejarah Gereja Katolik di Sulawesi Selatan dan Tenggara)”. Jurnal Lektur Keagamaan, 15(1), 125–148. DOI: 10.31291/jlk.v15i1.518.

4. Irwani Rasyid and Adang Saujana (2019), Dokumentasi Teknik Bangunan Kolonial. Balai Pelestarian Cagar Budaya Sulawesi Selatan; section on Gereja Katedral.

5. Aditya Joseph Mesalayuk (2024), Evaluasi Pengembangan Bangunan Gereja Katedral Kota Makassar Serta Dampaknya Terhadap Nilai Penting Sebagai Cagar Budaya. Undergraduate thesis, Universitas Hasanuddin.

6. Pramesty Inriana Ritto (2025), Strategi Penguatan Informasi Nilai Penting Cagar Budaya Gereja Katedral Makassar dan Artefak Liturgisnya sebagai Upaya Pelestarian. Undergraduate thesis, Universitas Hasanuddin.

7. Katharina Reny Lestari, “Katedral Makassar Berhias Diri Sambut Misa Instalasi Mgr. Fransiskus Nipa”. HIDUPKATOLIK, 16 October 2024; interview with Father Yulius Malli.

8. Ihwan Gunawan S, “Gereja Katedral Makassar Bakal Tampung 1.200 Jemaat Tiap Sesi Misa Natal”. detikSulsel, 24 December 2024.

9. Direktorat Jenderal Bimbingan Masyarakat Katolik, “Menag Hadiri Dedikasi Gereja Katedral Makassar: Simbol Iman, Persaudaraan, dan Keabadian”. Ministry of Religious Affairs, 31 October 2025.

10. “Antisipasi Lonjakan Umat, Misa Malam Natal Katedral Dua Sesi”. Celebesmedia, 24 December 2025; interview with Father Yulius Malli.

11. The Nara Document on Authenticity (1994); The Burra Charter (Australia ICOMOS, 2013); and ChurchCare, “Lighting”. Guidance used to frame heritage assessment and sensitive design.

12. Historical photographs, Collectie Wereldmuseum (formerly Tropenmuseum), via Wikimedia Commons: frontal view, 1900–1920, TM-60008255; oblique view, 1900–1919, TM-10016679; and C.J. (Cees) Taillie’s 1948 photograph, TM-10029315. All three source records specify CC BY-SA 3.0.

Project context and the 2024 panoramic photograph: Herwin Gunawan’s project account and documentation. Architectural readings of the photographs are the author’s interpretations.

Auditorium Mandiri University - Audiovisual Acoustic Lighting Design Integration

High Performance Audiovisual Seamless Integration

Effective Learning Space for Zoom Meeting, Video Conference, Multimedia Presentation, Live Streaming, and Live Music for Higher Education Environment

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Project Overview

The auditorium at Mandiri University was envisioned as a multifunctional academic and institutional gathering space capable of supporting lectures, seminars, conferences, presentations, performances, and hybrid learning activities within a contemporary higher education environment.

To support these diverse functions, the project required an integrated approach combining audiovisual system, architectural acoustics and lighting design planning to create a comfortable, flexible, and technologically adaptive auditorium experience.

The consultancy scope focused on developing a performance-driven environment that enhances speech intelligibility, visual comfort, communication quality, and overall audience experience while maintaining architectural coherence and operational flexibility.

The Challenge

Modern university auditoriums are increasingly expected to support multiple event typologies within a single space.

The project presented several key challenges:

• Maintaining speech clarity across varying occupancy conditions

• Supporting both live and hybrid presentation formats

• Balancing acoustic control with architectural aesthetics

• Managing lighting conditions for audience comfort and camera visibility

• Integrating audiovisual infrastructure without disrupting interior architecture

• Ensuring flexibility for educational, ceremonial, and multimedia events

Unlike conventional lecture halls, multifunction auditoriums require careful coordination between sound, light, visual communication, and spatial perception to create an environment that performs effectively for both in-person and digital audiences.

The project also required balancing technical performance with long-term operational usability and maintenance efficiency.

Our Approach - Define Acoustic & Lighting Performance

Our approach began by understanding the auditorium as a human-centered communication environment rather than simply a technical event space.

The design strategy integrated:

• Architectural acoustic analysis

• Lighting quality evaluation

• Audiovisual system coordination

• Spatial communication hierarchy

• User experience considerations

Rather than treating acoustics, lighting, and AV systems as separate disciplines, the project developed these components as interconnected layers influencing audience perception, communication clarity, and spatial comfort.

The acoustic strategy focused on improving:

• Speech intelligibility

• Reverberation control

• Audience listening comfort

• Noise management

• Spatial sound consistency

The lighting approach prioritized:

• Visual hierarchy

• Audience comfort

• Presenter visibility

• Camera-friendly illumination

• Flexible scene control

Meanwhile, the audiovisual system was designed to support:

• Hybrid learning environments

• Digital presentations

• Multimedia events

• Scalable communication infrastructure

• Integrated operational control

Human-Centered Performance Strategy

The project adopted a human-centered performance strategy where environmental quality was measured not only through technical specifications, but through human perception and communication effectiveness.

The design considered how people:

• Listen

• See

• Focus

• Communicate

• Interact within the auditorium environment

The acoustic environment was calibrated to reduce listening fatigue and improve speech clarity across audience seating areas.

Lighting design was carefully balanced to support:

• Comfortable facial visibility

• Reduced glare

• Visual adaptation

• Audience engagement

• Camera and broadcast performance

The audiovisual strategy focused on creating intuitive and seamless communication experiences for lecturers, speakers, students, and hybrid participants.

By integrating environmental comfort with technological functionality, the auditorium becomes more than a presentation venue — it becomes a high-performance educational communication space.

Design Integration

A key aspect of the project was multidisciplinary coordination between architecture, acoustics, lighting, and audiovisual technology.

The integration process included:

• Acoustic simulation and material evaluation

• Lighting scene and luminance hierarchy studies

• Audiovisual infrastructure planning

• Display visibility analysis

• Spatial coordination with architectural elements

• Equipment integration within interior design

Careful integration ensured that technical systems remained visually discreet while supporting optimal environmental performance.

This approach minimizes visual clutter, improves operational usability, and preserves the architectural character of the auditorium interior.

Outcome

The final design creates a flexible and performance-oriented auditorium environment capable of supporting contemporary academic communication and hybrid learning activities.

Acoustic strategies were developed to optimize reverberation time and speech intelligibility for lectures, conferences, and hybrid learning environments.

Through integrated acoustic, lighting, and audiovisual consultancy, the auditorium achieves:

• Improved speech intelligibility

• Enhanced audience comfort

• Better presentation visibility

• Flexible multimedia capability

• Human-centered communication quality

• Seamless technology integration

The project demonstrates how multidisciplinary environmental design can elevate educational spaces beyond conventional technical infrastructure into immersive and effective learning environments.

Rather than functioning solely as an event venue, the auditorium becomes an adaptive communication ecosystem that supports education, collaboration, and institutional engagement within a modern university setti

Project Information

• Project: Mandiri University

• Sector: Corporate Higher Education

• Location: Jakarta, Indonesia

• Service: Audiovisual System, Building Acoustic, Architectural Acoustic, Architectural Lighting

• Consultant: Herwin Gunawan / ALTA Integra

• Year: 2022

Audiovisual Lighting Acoustics Design Integration Karnaval Thamrin Community Entertainment

Mixed Use Lifestyle and Entertainment Destination

Project Overview

Karnaval Thamrin was developed as a modern lifestyle and culinary destination that brings together dining, entertainment, social interaction, and community experience within a vibrant urban environment in Central Jakarta.

Inspired by the energy of contemporary city culture, the project combines modern architectural ambience with a dynamic hospitality experience designed to attract young professionals, communities, families, and urban visitors seeking a lively yet comfortable social destination.

To support the experiential character of the venue, Morin Architect, Herwin Gunawan and ALTA Integra team provided acoustic, lighting, and audiovisual consultancy services aimed at creating a human-centered mixed-entertainment experience where sound, light, and communication systems work cohesively with the architectural atmosphere.

The consultancy approach focused on balancing:

• Acoustic comfort within active hospitality spaces

• Atmospheric lighting quality

• Audiovisual communication and entertainment systems

• Visitor wellbeing and sensory comfort

• Architectural ambience and spatial identity

Rather than positioning technology as merely technical infrastructure, the project integrated audiovisual system, stage and architectural entertainment lighting, and acoustic environment as experiential design instruments that shape mood, communication quality, emotional perception, and social interaction throughout the venue.

The result is a contemporary urban lifestyle environment that feels energetic, immersive, and socially engaging while maintaining visual comfort, acoustic balance, and environmental quality for visitors.

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Contemporary Lounge Dining Experience

The Challenge

Contemporary mixed-use lifestyle destinations present increasingly complex environmental challenges due to the integration of coffee shops, dining venues, bars, entertainment areas, and public social interaction functions within a fragmented environment.

The project required balancing:

• Acoustic comfort within active social environments

• Lighting atmosphere across multiple spatial identities

• Audiovisual flexibility for different events and entertainment

• Speech clarity within public gathering zones

• Visual comfort for visitors

• Integration of technical systems within architectural interiors

One of the primary challenges was creating an energetic and immersive lifestyle entertainment atmosphere while maintaining environmental comfort by controlling unwanted sound reflection, minimizing noise disturbance to nearby hotels and residential developments, reducing visual overstimulation from excessive lighting, and ensuring balanced audiovisual distribution throughout the venue.

Excessive reverberation, uncontrolled noise transfer, overly bright lighting, or fragmented audiovisual systems can negatively impact visitor comfort, emotional experience, and overall spatial quality. The project therefore required a thoughtful multidisciplinary strategy capable of balancing performance, atmosphere, technology, and human experience simultaneously.

Our Approach

Our approach began by understanding Karnaval Thamrin not merely as a commercial space, but as a human-centered experiential environment where environmental quality directly shapes how people interact, communicate, and emotionally connect with the space.

The design strategy integrated:

• Architectural acoustic evaluation

• Lighting atmosphere development

• Audiovisual system coordination

• Human behavioral considerations

• Spatial communication hierarchy

• Environmental comfort analysis

The acoustic design strategy focused on:

• Managing reverberation and noise buildup

• Improving speech intelligibility

• Enhancing auditory comfort

• Supporting social interaction quality

• Balancing energetic ambience with acoustic control

The lighting strategy emphasized:

• Layered atmospheric lighting

• Visual hierarchy

• Material enhancement

• Human visual comfort

• Flexible scene adaptability

• Day-to-night ambience transition

Meanwhile, the audiovisual consultancy supported:

• Flexible event capability

• Background music distribution

• Digital communication systems

• Public engagement experience

• Scalable entertainment infrastructure

The overall approach ensured that environmental systems contribute positively to both operational performance and emotional user experience.

Human-Centered Performance Strategy

The project adopted a human-centered environmental strategy where performance was evaluated not only technically, but through human perception, comfort, and emotional response.

The design carefully considered how visitors emotionally perceive and experience the environment through sensory and social interactions, including how they hear, see, smell, taste, navigate, communicate, and socialize within the space.

Acoustic strategies were developed to reduce excessive noise fatigue while preserving the lively social character of the venue. Lighting design balanced visual stimulation with comfort by controlling: brightness hierarchy, glare perception, color temperature, dynamic color ambient, spatial contrast for creating different ambient mood.

The audiovisual systems were designed to support live band performances, DJ entertainment, and ambient lounge background music, while the visual systems enable dynamic lighting scenes, live performance visuals, and promotional multimedia content. This approach creates a more immersive and emotionally engaging hospitality environment while supporting entertainment activities and social interaction throughout the venue.

Design Integration

A key strength of the project was the integration between architecture, acoustics, lighting, and audiovisual technology from the early stages of design development.

The integration process included: Acoustic material coordination, Lighting scene simulations, Audiovisual infrastructure planning, Equipment concealment strategies, Environmental comfort evaluation, Architectural, Building Structure and MEP detailing integration.

Rather than allowing technical systems to compete visually with the architecture, the design carefully embedded performance systems into the spatial language of the project. This integrated methodology improves: Operational efficiency, Spatial coherence, User experience quality, Maintenance accessibility and Architectural cleanliness.

The result is an environment where technology enhances atmosphere without becoming visually intrusive.

Outcome

The final design creates a vibrant yet comfortable lifestyle environment that supports social interaction, entertainment, hospitality, and public engagement within a cohesive architectural experience.

Through integrated acoustic, lighting, and audiovisual consultancy, Karnaval Thamrin achieves: Improved environmental comfort, Enhanced spatial atmosphere, Better audiovisual and communication quality, Flexible scenario capability, Human-centered visitor experience, and Integrated architectural technology performance

The project demonstrates how multidisciplinary environmental design can transform commercial and hospitality spaces into emotionally engaging, performance-oriented environments that support both business objectives and human wellbeing.

Rather than functioning solely as a retail or entertainment venue, Karnaval Thamrin becomes an immersive urban social environment shaped through the careful integration of sound, light, and human-centered architectural experience.

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Entertainment Scenario

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Project Information

• Project Name: Karnaval Thamrin

• Location: Jakarta, Indonesia

• Project Type: Lifestyle, Hospitality & Entertainment Destination

• Services: Audiovisual System Design, Stage & Architectural Lighting Design, Building and Architectural Acoustic Consultancy, Entertainment Technology Integration and Environmental Experience Design

• Consultant: Herwin Gunawan / ALTA Integra

• Year: 2023

Auditorium Theater Design: Audiovisual, Lighting, Acoustic - Santo Ignatius Kanisius Jakarta

ALTA Integra collaborate with Atelier Cosmas Gozali designed audiovisual acoustic lighting Multi-Function Hall, Education Theater and Library at Kolese Kanisius Menteng Ignatius Loyola New Building for Future Education Facility.

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Theater Class

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Auditorium Hall

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Library

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Acoustic Audiovisual System Design: Gelora Bung Karno Indoor Multifunction Stadium

We have done Acoustic and Audiovisual Designed followed FIBA Standard

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Meet Required Acoustic Performance Within Budget

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Menjadi Tenaga Ahli Akustik dan Tata Suara pada proyek Kementrian Pekerjaan Umum Perumahan Rakyat Indoor Multi-Function Stadium Gelora Bung Karno bersama dengan Penta Arsitektur - Aboday - Adhi Karya - Nindya Karya

Home Theater Design Integration - Interior Acoustic Lighting Audiovisual - Tulip Sentul

Audiovisual experience is the key to emotionally engaging viewers in a home theater environment, supported by carefully designed acoustics, ambient lighting, and interior design that work together to enhance the overall cinematic experience.

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High Performance Audiovisual Seamless Integration

Good Acoustic and Good Lighting

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Sustainable Retail Fit Out Design: Kiehl’s Central Park Jakarta

Is it the Most Sustainable Retail in South East Asia?

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Audiovisual System Design: Nokia Corporate Office Capital Place

Collaborate with Mmoser Associate Singapore, ALTA Integra succeeded designed Effective Audiovisual Design for Connecting People and Things

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Lobby

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Boardroom

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Meeting Room

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Canteen, Town Hall, Training

Acoustic Lighting Audiovisual Design: Indonesia Stock Exchange Main Hall

Mid 2020 ALTA Integra was chosen by Indonesia Stock Exchange to be their design consultant partner to elevate IDX Main Hall to World-Class Standard. ALTA was chosen due to its World-Class Reputation in integrating multi-discipline engineering such as Architectural Lighting, Acoustics, and Audio Systems Design with the beauty of architecture seamlessly. By The End of 2021 ALTA Integra Has Succeeded Completed The Commissioning of Audiovisual Lighting and Acoustic Experiences in Indonesia Stock Exchange Main Hall to a Multi-Sensory Experiences Venue

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With Old Carpet

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Lighting Acoustic Design: Global Banking and Financial Corporate

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Reception

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TOWN-HALL 

The town hall designed to have flexibility in space, can be enlarge if the high STC of operable wall of meeting room and music studio space is open. Feature with Cisco Webex Video Conference and distributed to all space with Crestron Audio System and high-definition projector with a motorized lift for internal gathering or global office gathering.

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Boardroom & Meeting Room

together with interior designer we design the integration of CISCO Webex Telepresence for visual aesthetic, ergonomic and comfort, speech clarity with maximum acoustic privacy.   

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Open Plan Office

Together with interior we make acoustic zoning plan in the open plan work space to reduce acoustic distraction and improve acoustic privacy, in a healthy acoustic environment according to Green Mark Certification.

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Interior Lighting Acoustic Karaoke System: Miami Vibe KTV Bar

Seamless Integration Design of Audiovisual Interior Acoustic Design Lighting, Excellent Audiovisual Karaoke Experiences with Excellent Acoustic and Miami Style Lighting Design

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City View Bar

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KTV Room

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Entrance

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Toilet

Interior Acoustic Lighting Design: Sindanglaya Audiophile Music Room

“Design is where science and art break even" 

Mieke Gerritzen

Follow our passion for music and art, painting our room with beautiful sound and light, and a scientific method behind it. Integrating building science and art into project can tell a different story.

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3D Interior Rendering

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Mancave - Integrating Acoustic Lighting Audiovisual Interior Design Knowledge Into Reality

Why Men need a MAN CAVE?

“Every man deserves a cave… a place where he can escape, recharge, and just be himself.”

A man cave is a personal sanctuary where you can indulge your hobbies and guilty pleasures with freedom. It provides personal space for much-needed me-time, boys hang-out, or family gatherings.

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Interior Rendering

Live band stage, Audiophile HiFi System, and Billiard Table

Interior design preview with a motion flowing drop ceiling and raise floor stage.

Excellent Acoustics Ambient

2D Omni-directional acoustic diffuser, fabric panel, and perforated wooden panel

Music Haven in cozy lighting ambient

Listening to high-quality music reproduction, playing music, or singing karaoke in cozy lighting

ALTA Integra can integrate acoustic lighting interior audiovisual design knowledge, visualize, calculate, and commissioning to make sure everything built as planned.

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Reality

The best thing about it is that you have complete control over the design.

We believe our body and mind are shaped by the space we live, work and play in. Architectural Building Physics such as Acoustic, Lighting, Thermal, and Air Quality play important role in making a better space for specific function.

Let's discuss the crazy or unique man cave design you want have, you can have it all.

#mancave #mancaveideas #InteriorDesign #buildingphysic #architecturalacoustic #roomacoustic #lightingdesign #soundsystem #audio #audioengineers #soundengineer #architecture #interior #wellness #wellbeing #humandesign #betterworld

Interior Lighting Acoustic Design: Jatinegara Mancave Billiard Karaoke Audio Music Studio

“A man cave is a personal sanctuary where you can indulge your hobbies and guilty pleasures with freedom. It provides personal space for much-needed me-time, boys hang-out, or family gatherings.” 

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Warm and Inviting Interior Design

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Good Acoustic mean Good Music

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Good Lighting for Enjoy the Moment

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