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A-to-Z House
A-to-Z House
San Francisco, CA, United States
Project Featured on Jul 28, 2017
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A-to-Z House
San Francisco, CA, United States
Project Featured on Jul 28, 2017
Type
STATUS
Built
YEAR
2016
SIZE
1000 sqft - 3000 sqft
BUDGET
$100K - 500K
A modest home expands through aggregation, multiplying scaled versions of the original A-type pulled along a twisted Z axis. The result is a double offset – a 2nd story structure to capture sweeping views and a voided landscape carved into the hillside. New forms combine with the old, erasing boundaries.
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The A-to-Z House proposes an alternative to conventional approaches for expanding an outmoded San Francisco home. Perched on a hillside in Golden Gate Heights, a modest single story 1934 developer vernacular structure had limited space and failed to take advantage of expansive views of Sutro Tower, Golden Gate Park, Sausalito, and the Bay. But rather than replacing or merely attaching to the existing structure, the A-to-Z strategy seizes upon the existing forms – scaling, repeating, and manipulating found objects into a contextual collection of structures comprising a dynamic home immersed in its surroundings.
A new gabled roof structure is inserted at the ridgeline of the existing living room bar, stepping back from the street to reduce mass and nestling into the existing roof to establish a low horizon line. This datum is characterized by a ribbon of operable windows that wrap two corners of the building to take advantage of critical views, accented by to a sawtooth window system and thickened metal edge. Inside, variations of the floor level and ceiling height provide different ways to experience this horizon in each space, from sweeping vista to private lookout.
As the new gabled structure reaches the carefully terraced back yard, it twists and wraps down around the dining room. This turn along a torqued Z-shaped axis (alternately horizontal and vertical) is held ever so slightly apart from the existing house, using a band of light and the articulation of the ceiling to create meaningful difference out of similar forms.
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The A-to-Z House proposes an alternative to conventional approaches for expanding an outmoded San Francisco home. Perched on a hillside in Golden Gate Heights, a modest single story 1934 developer vernacular structure had limited space and failed to take advantage of expansive views of Sutro Tower, Golden Gate Park, Sausalito, and the Bay. But rather than replacing or merely attaching to the existing structure, the A-to-Z strategy seizes upon the existing forms – scaling, repeating, and manipulating found objects into a contextual collection of structures comprising a dynamic home immersed in its surroundings.
A new gabled roof structure is inserted at the ridgeline of the existing living room bar, stepping back from the street to reduce mass and nestling into the existing roof to establish a low horizon line. This datum is characterized by a ribbon of operable windows that wrap two corners of the building to take advantage of critical views, accented by to a sawtooth window system and thickened metal edge. Inside, variations of the floor level and ceiling height provide different ways to experience this horizon in each space, from sweeping vista to private lookout.
As the new gabled structure reaches the carefully terraced back yard, it twists and wraps down around the dining room. This turn along a torqued Z-shaped axis (alternately horizontal and vertical) is held ever so slightly apart from the existing house, using a band of light and the articulation of the ceiling to create meaningful difference out of similar forms.
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