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The Battery

Structural renovation and expansion transforms historic building into private social club

LocationSan Francisco, CA

Client/Owner MXB Battery, LP


  • FORGE Architecture & Design
  • Ken Fulk Inc.


  • Holmes US
  • MHC Engineers
  • Rollo & Ridley Inc.

Size 58,000 sf

BCCI completed a major structural renovation of the Musto Building. Originally constructed in 1907, the unreinforced masonry structure required a mandatory seismic upgrade and included restoration and retrofit work, an expansion of the basement level, and the addition of a fourth floor penthouse. The building which was once used as a warehouse and then office suites has been converted into private, members-only social club The Battery with a fine dining restaurant, four bars, a wine cellar, a card room, a library, a conference center, a fitness facility, and 14 guest suites.

As part of the rehabilitation, BCCI incorporated a state-of-the-art seismic strengthening system braced by steel moment frames that extend through each floor of the building and allow the interior brick surfaces to remain exposed. Modern touches include a new 40-foot glass and steel staircase cantilevered to achieve a suspended, continuous folded steel aesthetic and a one-of-a-kind all-glass elevator. To preserve the building’s historic fabric, materials were re-used throughout the project such as heavy wood timber columns, beams, and joists while on top of the existing structure, the new penthouse level features a modern glass curtain wall system and a roof deck with a Jacuzzi pool. Collaborating closely with the Owner and the design and engineering teams, BCCI delivered a truly unique project unlike any other in the heart of San Francisco’s North Beach neighborhood

Project Highlights: 

  • Comprehensive adaptive reuse and renovation of historic building
  • Mandatory unreinforced masonry building (UMB) seismic upgrade
  • Restoration and retrofit work
  • Vertical and horizontal expansion of the basement level
  • 5,700 sf penthouse and rooftop deck addition


tons of new steel


lb cantilevered glass and steel staircase


guest suites


bars and a fine dining restaurant


pre-Gold Rush-era artifacts discovered during excavation

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