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1355 Market Roof Deck
Located in the emerging Mid-Market district of San Francisco, the new headquarters for Twitter is poised to bring new life to a long-neglected stretch of Market Street. As the major tenant of the two building Market Square complex, Twitter has chosen to remain in San Francisco and renovate a historic Art Deco building.
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A key component of the new tenant improvements was the development of a large roof terrace that would provide an outdoor extension of the workplace and the adjacent cafeteria for the Twitter work force. The roof terrace seeks to provide both a flexible outdoor space that can accommodate large group gatherings as well as more intimate settings for small work groups and personal break-out spaces.
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Working within the constraints of the existing structural system, the planting areas are composed of a shallow soil profile made up of a light weight planting medium over a moisture retaining mat. This extensive roof planting technique reduces overall planting weight and supports a number of native succulents including sedums, echeverias and dudleyas as well as some smaller grasses.
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Plants are arranged in bands of varying colors and textures to create bold patchwork, defining the character of the roof terrace. A grouping of four trees frames views of the skyline and highlight the Art Deco details of the turret above.
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