David Baker Architects

921 O'Farrell


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2020.07 v.4: Revised design with roof deck and urban street-wall base more refined and articulated. Image: David Baker Architects

921 O’Farrell rises 14 stories from a tiny 40-foot-wide lot in San Francisco’s Polk Gulch neighborhood. The slender tower provides 50 mixed-income homes near the Van Ness corridor.

 

This project proposes the demolition of an existing underutilized commercial structure and the construction of a mixed-use high-rise between O’Farrell and Olive streets near the corner of Polk Street.

The tower has dynamic north and south facades dotted by bays, terraces, and private balconies. The building does not offer any residential parking, preserving the ground level for active commercial and community space. Above, the homes look out across the cityscape to the north or south—there are no internally oriented units. The building is topped by a shared west-facing community terrace for all residents to enjoy expansive city views.

More than half of the 50 homes have two bedrooms, and a third are permanently affordable units in San Francisco’s Home SF program.

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2020 01 v.3 vignette view of O'Farrell elevation. Image: David Baker Architects

O'FARRELL ELEVATION

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Entry on O'Farrell street v.3 design. Image: David Baker Architects

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View of the roof deck from the elevator lobby. Image: David Baker Architects

On the top residential floor the roof deck offers afternoon sun and spectacular views. Image: David Baker Architects

ROOF TERRACE

 

Common open space for the residents is provided by a large terrace located on the top floor. The terrace will have excellent sun exposure in the afternoons in particular as it opens out to the west. 

The roof terrace will have afternoon sun and spectacular views to the west. Image: David Baker Architects

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The top floor plan showing the Penthouses and the shared Roof Terrace. Image: David Baker Architects

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Typical residential level plan. Image: David Baker Architects

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O’Farrrell Street level plan. Image: David Baker Architects

DIAGRAM a: Zoning code massing.

DIAGRAM b: SF Home compliant courtyard instead of rear yard. Image: David Baker Architects

DIAGRAM c: SF Urban Design Guidelines base to reference historic pattern. Image: David Baker Architects

Diagram d: Height is varied to provide massing interest. Image: David Baker Architects

DIAGRAM e: Bays add visual interest and "roughness" to reduce wind shear. Image: David Baker Architects

DIAGRAM f: Bays and decks provide meaningful open space. Image: David Baker Architects

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Looking up from the O'Farrell sidewalk, design v.3. Image: David Baker Architects

2020.07 v.4: Revised design with roof deck and urban street-wall base more refined and articulated. Image: David Baker Architects

2018 v1: Visualization of 921 O'Farrell from across O'Farrell Street. Image: David Baker Architects

2020 01 v.3 vignette view of O'Farrell elevation. Image: David Baker Architects

2018 11 v.2 vignette view of O'Farrell elevation. Image: David Baker Architects

Entry on O'Farrell street v.3 design. Image: David Baker Architects

Entry on O'Farrell street v.2 design. Image: David Baker Architects

Looking up from the O'Farrell sidewalk, design v.3. Image: David Baker Architects

On the top residential floor the roof deck offers afternoon sun and spectacular views. Image: David Baker Architects

The roof terrace will have afternoon sun and spectacular views to the west. Image: David Baker Architects

View of the roof deck from the elevator lobby. Image: David Baker Architects

2018 v.1 O'Farrell Street elevation. Image: David Baker Architects

The top floor plan showing the Penthouses and the shared Roof Terrace. Image: David Baker Architects

Typical residential level plan. Image: David Baker Architects

O’Farrrell Street level plan. Image: David Baker Architects

Olive Alley looking west. Image:David Baker Architects

Street Art nearby on Olive Alley. Image: David Baker Architects

DIAGRAM a: Zoning code massing.

DIAGRAM b: SF Home compliant courtyard instead of rear yard. Image: David Baker Architects

DIAGRAM c: SF Urban Design Guidelines base to reference historic pattern. Image: David Baker Architects

Diagram d: Height is varied to provide massing interest. Image: David Baker Architects

DIAGRAM e: Bays add visual interest and "roughness" to reduce wind shear. Image: David Baker Architects

DIAGRAM f: Bays and decks provide meaningful open space. Image: David Baker Architects

project details

Category

All Projects, Market-Rate, On the Boards, Tall

​Location

San Francisco, CA

Architect

David Baker Architects

Permalink

www.dbarchitect.com/921OFarrell

project data
921 O'Farrell 21708
San Francisco, California
number of units
studio 24
2 bedroom 26
total 50
density ratios
project sf 65,804
site sf 39,540
acres 0.9
total bedrooms 76
bedrooms/acre 84
units/acre 56
construction type
15 stories Concrete highrise