626 Mission Bay Boulevard
Located in Mission Bay, this development is one of the few buildings designed with families in mind. The affordable housing complex includes on-site social services, multiple interior courtyards, community rooms, and close access to public transportation.
Site Square Footage: 188,200 sq. ft.
Date Completed: 2018
Construction Cost: $71 million
Client: Tenderloin Neighborhood Development Corporation
Architect: Mithun
Structural Engineer: KPFF Consulting Engineers
Civil Engineer: Urban Design Consulting Engineers
General Contractor: Nibbi Brothers
Rockridge Geotechnical (RG) performed a geotechnical investigation, consulted during design, and provided geotechnical services during the construction of this affordable housing development. The development includes 143 affordable residential units, 11,450 square feet of retail space, a parking garage, associated amenity spaces, and a publicly accessible pedestrian path. The structures include a six-story, podium-style building fronting on Fourth Street and two two- and three-story buildings on the western portion of the site.
The site is underlain by deep deposits of soft, highly compressible clay (Bay Mud). RG provided recommendations for the proposed buildings, including floor slabs, to be supported on deep foundations. Based on the results of value-engineering, Tubex piles going down to bedrock were installed for foundation support.
This project won the 2019 Best Affordable Residential Real Estate Deal of the Year from the San Francisco Business Times and the 2019 Gold Nugget Merit Award, Best Affordable Category from the Pacific Coast Builder’s Conference.