David Baker Architects

Tahanan Supportive Housing


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Visualization from across Bryant Street. Image: David Baker Architects

2020.02.06 Modular apartments for the formerly homeless on the production line at Factory OS on Mare Island in the north San Francisco Bay.

Tahanan will bring 145 studio apartments (plus one manager's unit) of permanent supportive housing for adults who have experienced homelessness to the SOMA District of San Francisco.

This is the prototype of what is hoped to model a new financing structure for permanent supportive housing. The goals of the project are to expedite the development process and make it more efficient, reducing cost by jumpstarting construction using philanthropic funding. Permanent affordability and high-quality operations are ensured through a partnership with the City of San Francisco, which will provide operating subsidies after construction is complete. The site is in the central South of Market Area of San Francisco between 6th and 7th Streets on Bryant, across from the Hall of Justice. The site is central to public transit, grocery stores, and community parks.

Visualization from Harriet Street, a narrow street with commercial and residential uses. Image: David Baker Architects

Close up of the front door entry. Image: David Baker Architects

Cultural Influence 

A partnership of Mercy Housing, Tipping Point Community,and The San Francisco Accelerator Fund, this project has been developed in close collaboration with the Department of Homelessness & Supportive Housing of the City of San Francisco. The development is located within the SOMA Pilipinas Cultural District, which was established by the San Francisco Board of Supervisors and Planning Department to preserve the cultural diversity of the South of Market with special attention to highlighting the culture and contributions of the Filipinx American community in the area.

The name for this new community, Tahanan, is a Tagalog word which evokes “home”, “coming home”, “return home”. It represents a place for people and families to return to or rest. Given the location of the site, the project team consulted with SOMA Pilipinas staff regarding several building design elements which resulted in the use of the traditional ‘banig’, (colorful handwoven grass mat), pattern in the cast concrete, as well as the representation of rice field terraces on the building’s exterior material.

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View from across Bryant Street from the west. Image: David Baker Architects

The modular boxes include 2 studio apartments and the corridor. Image:David Baker Architects

MODULAR CONSTRUCTION

 

The entire building above the concrete ground level is made of off-site factory modules. There are advantages to this strategy, the primary one is speed of construction.

Modular construction allows mock-up completely finished units to be built in the factory to work out issues in advance, and then to use the mock-up as a unit in the project. This a real, not digital, 11b kitchen! Image: David Baker Architects

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Detail of the BOK corten rainscreen system bay windows. Image: David Baker Architects

Metal Skin

The modular rain screen panels are being developed in conjunction with BOK Modern, a San Francisco based company. Two metals will be used: Corten rusting steel and natural aluminum. The perforations allow the venting on the facade to be integral, and also are designed as a mega graphic of Philippine rice paddies.

Revit model of all of the BOK metal panels. Image: David Baker Architects

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Typical residential level. Image: David Baker Architects

Ground level plan. Image: David Baker Architects

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Visualization aerial from the north west. Image: David Baker Architects

Construction 2021.05.27

Phillipine Banig woven mat textured concrete references the local Somas Filipinas. Image: David Baker Architects

Finished modular units, two studios per box plus the corridor, waiting on Mare Island for the concrete podium to be completed. Image: Bavid Baker Architects

Construction 2020.04.10: foundation piers being drilled during the pandemic. Image: David Baker Architects

2020.02.06 Modular apartments for the formerly homeless on the production line at Factory OS on Mare Island in the north San Francisco Bay.

2020.03 Modular apartments for the formerly homeless on the production line at Factory OS on Mare Island in the north San Francisco Bay.

Finished modular units, two studios per box plus the corridor, waiting on Mare Island for the concrete podium to be completed. Image: Bavid Baker Architects

Phillipine Banig woven mat textured concrete references the local Somas Filipinas. Image: David Baker Architects

Construction 2021.05.27

Visualization aerial from the north west. Image: David Baker Architects

View from across Bryant Street from the west. Image: David Baker Architects

Visualization from across Bryant Street. Image: David Baker Architects

Close up of the front door entry. Image: David Baker Architects

Visualization from Harriet Street, a narrow street with commercial and residential uses. Image: David Baker Architects

Visualization from southwest across Bryant Street. Image: David Baker Architects

View looking north on Boardman. Image: David Baker Architects

View of the commercial space on the Corner of Bryant and Boardman Place. Image: David Baker Architects

Bryant Street elevation. Image: David Baker Architects

Typical residential level. Image: David Baker Architects

The modular boxes include 2 studio apartments and the corridor. Image:David Baker Architects

Unit plans showing all 3 types. Image David Baker Architects

Unit plan facing the courtyard. Image: David Baker Architects

CAD model of unit interior. Image: David Baker Architects

Modular construction allows mock-up completely finished units to be built in the factory to work out issues in advance, and then to use the mock-up as a unit in the project. This a real, not digital, 11b kitchen! Image: David Baker Architects

Interior of "Green" stair. Image: David Baker Architects

Sketch of BOK Corten dimensional rain screen with integrate interior vents. Image: David Baker Architects

Detail of the BOK corten rainscreen system bay windows. Image: David Baker Architects

Revit model of all of the BOK metal panels. Image: David Baker Architects

Ground level plan. Image: David Baker Architects

Sketch plan of ground level services. Image: David Baker Architects

Diagrams of design concept. Image: David Baker Architects

BAY WINDOWS reference tradition San Francisco typology while turning away from the jail and the setting western sun. Image: David Baker Architects

SCREENS with mega graphic of Philippine rice pater cut into them skin the circulation masses. Image: David Baker Architects

MATERIALS: The metal screens, a collaboration with BOK Modern, are made from naturally rusting Corten steel and natural aluminum. Image: David Baker Architects

GROUND LEVEL POROSITY

publications

Innovative Financing and Construction Methods Speed Affordable Home Delivery at Tahanan Supportive Housing
San Francisco’s Tahanan Supportive Housing Project Leverages Wide Range of Expertise to Complete Development in Record Time

project details

Category

Affordable Housing, All Projects, Apartments, Micro-Units, Modular, San Francisco, Under Construction

​Location

San Francisco, California

Developer

Mercy Housing California

Developer

Tipping Point Community

Development Team

San Francisco Housing Accelerator Fund

Architect

David Baker Architects

General Contractor

Cahill Contractors

Landscape Architect

Fletcher Studio

Structural Engineer

DCI Engineers

Lighting Designer

Horton Lees Brogden

Mechanical/Electrical/Plumbing Engineer

FARD Engineers

Civil Engineer

Luk + Associates

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www.dbarchitect.com/Tahanan

project data
Tahanan 21801
83 Bryant Street
San Francisco, California
Under Construction 
number of units
studio  145
1 bedroom (manager unit) 1
total 146
density ratios
project sf 63,032
site sf 15,537
acres 0.36
total bedrooms 146
bedrooms/acre 405
units/acre 405
construction type
modular Type IIIA over Type IA
certification
GreenPointRated Registered