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4th and Harrison Mixed-Use Development

San Francisco, California
Image by Steelblue
Image by Steelblue

This mixed-use development in San Francisco’s Central SoMa neighborhood links the Financial District with the burgeoning Mission Bay area.

The 770,000 square feet of Class A office space has large floor plates and amenities including five roof decks with city views from all sides. The project also includes 36,000 square feet of retail, on-site childcare and production-distribution-repair space, street level micro retail and 16,700 square feet of public open space.

Rising 15 stories above grade, the building is designed to enhance the neighborhood’s character while acknowledging its context and history. Instead of the monolithic tower shape characteristic of many downtown office buildings, it takes inspiration from the intrinsic geometries found in the built and natural environments. The articulation of the building on large and small scales creates a cascading effect reminiscent of falling leaves.

HOK’s design team used parametric design tools to create a pulsating rhythm of expansion and contraction with different panel sizes and colors. The metal panel facade blends seven copper and eight zinc tones highlighted by a gradient color shift from the ground up. Unique stacking arrangements and facade treatments visually break up the building’s mass. The glazing, metal panels and reliefs arrayed across the individual facades are environmentally responsive to solar orientations.

The team is targeting LEED Platinum certification, which would make this San Francisco’s largest core and shell carbon-neutral development.

Two large, privately owned, publicly accessible open spaces (POPOS) at street level are unique to San Francisco’s planning code as part of the city’s 1% Art Program, which requires developers to integrate public art in all new buildings equal to at least one percent of the total construction cost. This art will enhance the building’s inviting urban streetscape, outdoor rooms and open spaces.

CERTIFICATION
LEED Platinum anticipated
SIZE
820,000 sq. ft. / 76,180 sq. m.
AWARDS
The American Architecture Awards - Best Mixed-Use Buildings
Awards
Center for Tall Buildings and Urban Habitat – Future of Design Award
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