Work Portfolio

Herwin Gunawan Human-Centered Building Performance Consultant Herwin Gunawan Human-Centered Building Performance Consultant

Lighting Audiovisual Design: Plaza Maria Katedral Jakarta

Audiovisual and Lighting Design Plaza Maria Gereja Katedral Jakarta. With the mindset of respecting the architectural and heritage value of the building, we have choses solutions and technology that improved the congregation spiritual experience.

Saint Mary of the Assumption Cathedral Church in Jakarta is one of the most famous and beautiful cathedral churches in Indonesia. The construction began in the year 1891 - 1901 lead by Pastor Antonius Dijkmans, SJ who is appointed as the architect. Due to the lack of funding, construction was halted. After sufficient funds were accrued, MJ Hulswitt resumed the construction in the year 1899.

With the growth of population in Jakarta and so do the members of the Catholic Congregation, the church decided to increase the mass capacity of the church by developing an outdoor area as the extension space to make room for more people on Sunday Morning Mass or Special Event Mass. 

The plan started in 2018, with the mindset of respecting the architectural and heritage value of the building. Taking advantage, choosing solutions and technology that would improve the congregation spiritual experience in accordance with international performance standards.


All the concerning issues were noted from the beginning as shown by the owners, including giving the church stakeholders: scientific methodology of acoustical, audio-visual technology and lighting engineering design, transparent tender, and professional construction management.

Project information

Audiovisual System Design and Lighting Design:  ALTA Integra

Audio Product: Bose 

Visual Product: Datascript

Lighting Product: iGuzzini, WE-EF 


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Herwin Gunawan Human-Centered Building Performance Consultant Herwin Gunawan Human-Centered Building Performance Consultant

Lighting Audiovisual Design: Plaza Sumpah Pemuda Katedral Jakarta

Audiovisual and Lighting Design Plaza Sumpah Pemuda Gereja Katedral Jakarta. With the mindset of respecting the architectural and heritage value of the building, we have choses solutions and technology that improved the congregation spiritual experience.

Saint Mary of the Assumption Cathedral Church in Jakarta is one of the most famous and beautiful cathedral churches in Indonesia. The construction began in the year 1891 - 1901 lead by Pastor Antonius Dijkmans, SJ who is appointed as the architect. Due to the lack of funding, construction was halted. After sufficient funds were accrued, MJ Hulswitt resumed the construction in the year 1899.

With the growth of population in Jakarta and so do the members of the Catholic Congregation, the church decided to increase the mass capacity of the church by developing an outdoor area as the extension space to make room for more people on Sunday Morning Mass or Special Event Mass. 

The plan started in 2018, with the mindset of respecting the architectural and heritage value of the building. Taking advantage, choosing solutions and technology that would improve the congregation spiritual experience in accordance with international performance standards.


All the concerning issues were noted from the beginning as shown by the owners, including giving the church stakeholders: scientific methodology of acoustical, audio-visual technology and lighting engineering design, transparent tender, and professional construction management.

Project information

Audiovisual System Design and Lighting Design:  ALTA Integra

Audio Product: Bose 

Visual Product: Datascript

Lighting Product: iGuzzini, WE-EF 


Read More
Herwin Gunawan Human-Centered Building Performance Consultant Herwin Gunawan Human-Centered Building Performance Consultant

Lighting Design: Kapel Kolese Kanisius Jakarta

Kolese Kanisius Chapel Architecture Acoustics Lighting Audio Renovation. Collaborate with Atelier Cosmas Gozali, ALTA Integra made renovation calculations and planning to improve the Acoustic Lighting and Audio Performance of Chapel of Kolese Kanisius

Architecture Acoustics Lighting Audio Renovation

Collaborate with Atelier Cosmas Gozali, ALTA Integra made renovation calculations and planning to improve the Acoustic Lighting and Audio Performance of Chapel of Kolese Kanisius


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