41-Story Office Tower Approved For 530 Sansome Street, San Francisco

The city’s Board of Supervisors has granted approval for the proposed 41-story mixed-use tower and associated fire station at 447 Battery Street and 530 Sansome Street in San Francisco’s Financial District. The project is a public-private partnership between the city and Related California with plans for office space, hotel rooms, and a replacement for S.F. Fire Station No. 13.

According to reporting by Patrick Hoge for the San Francisco Examiner, Related California is considering starting construction as early as next year. Hoge adds that the firm is confident in demand for modern Class-A office space and high-end hotel rooms.

530 Sansome Street tower base, rendering by SOM

530 Sansome Street seen between Embarcadero Center and the Transamerica Pyramid, rendering by SOM

The 574-foot-tall structure is expected to yield around 649,500 square feet, including 230,100 square feet of hotel space, 412,000 square feet of office space, and 7,400 square feet for retail and restaurant space. The hotel will include 200 rooms on floors four through 15. Office space will occupy floors 16 through 41, with employee amenities centralized on the 16th and 17th floors. Parking will be included for 74 cars and 104 bicycles.

The ground level will include a cafe, hotel arrival room, and office lobby. The second floor will include more hotel space and 4,000 square feet for a restaurant overlooking Washington Street. The third floor will include the hotel lobby connected to the top floor of the restaurant, two meeting rooms, and a ballroom.

530 Sansome Street hotel entrance, rendering by SOM

530 Sansome Street showing pedestrian activity, rendering by SOM

Skidmore Owings & Merrill is the project architect. Alongside elevations and facade detail images, the primary rendering for the project shows the tower rising between the Transamerica Pyramid and Embarcadero Center.

The newly proposed Fire Station No. 13 will rise 55 feet tall with four floors above a basement garage. The first floor will include space for three fire engines and a fire truck with four bay doors facing Battery Street. The rest of the station will include dining space, dormitories, and other amenities for firefighters.

530 Sansome Street mid-block alley design in comparison with the Transamerica Pyramid redesign of Mark Twain Alley,

530 Sansome Street, image via Google Street View

The project site spans three parcels, including the fire station at 530 Sansome Street and two vacant commercial structures at 425 and 435-445 Washington Street. The property is directly across from Three Transamerica at 545 Sansome Street and One Maritime Plaza across Battery Street.

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