One Sansome Street

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One Sansome Street is a prestigious 41-story, Class A office tower located in the heart of San Francisco’s Financial District.  Situated less than one-half block from Market Street on the corner of Sutter and Sansome streets, the building offers exceptional access to all forms of public transit, countless dining options, world-famous Union Square, full-service and luxury hotels, and the convention center/museum district. 

One Sansome is owned in a joint venture between Barker Pacific Group and Prudential Real Estate Investors​.  Since its acquisition in 2010, the ownership has invested over $20 million in capital improvements to the building, including new ceiling and lighting in the main lobby, new lobby attendant console, new elevator cab interior finishes and lighting, and installation of multiple furniture arrangements in the lobby.  The building is professionally managed by Barker Pacific Group.

In 2014, One Sansome was awarded LEED Platinum v4 certification by the U.S. Green Building Council, making it the first building in San Francisco - and the first major office building in the world - to obtain the highest green building standard.



  • Institutional ownership and management 
  • Panoramic bay and city views from upper floors
  • Direct elevator access to Montgomery Street BART/Muni station
  • Bicycle storage and showers
  • Cardkey-secured access to all floors
  • Three-story historic Conservatory with fountain and outdoor seating