Moscone Convention Center Expansion

San Francisco, CA

  • Architect: Mark Cavagnero Associates Architects; SOM
  • Contractor: Webcor Builders
  • Developer: City of San Francisco / SF Tourism Improvement District
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South lobby entry
Credit: SOM

An extraordinary effort by the City of San Francisco and the San Francisco Tourism Improvement District to expand existing convention space.

A three-phase expansion involving a limited portion of Moscone North and Moscone South, with approximately half of the work being done underground in order to better connect the two buildings and increase usable space.

Phase 1: Reconfigured truck routes, ramps, and entry points into the underground exhibit facilities while allowing for the continued operation of the convention center.

Phase 2: Reconfigured and expanded underground exhibit space by roughly 305,000 sf. Additionally, constructed new foundations for Phase 3 work.

Phase 3: Connecting the North and South facilities by creating a 240-foot, enclosed multispan concrete box-girder bridge at grade to maintain full-time elevated public access across Howard Street from Yerba Buena Gardens to the cultural facilities. Includes the creation of additional exhibit space below.