a tall building with many windows

690 Market Street Building, Adaptive Reuse San Francisco, CA

Provided construction engineering services related to partial demolition and adaptive reuse of this historic San Francisco structure. Prepared Construction Documents for temporary shoring and sequencing to remove all but the façade of this 12- and 16-story structure, excavate a new basement level and mat foundation, and build a modern steel frame building behind the existing façade. This challenging project required close coordination with the design team for the new structure as well as the construction team, and required safe support of both gravity and lateral loads at all stages of demolition and new construction. The project is a 2006 SEAOC award winner.


  • Temporary shoring
  • Adaptive re-use
  • SEAOC award winner
  • Service: Construction Means and Methods; shoring
Project Stats
Client Office of Charles Blozsies, Plant Construction,
Square Footage 258,000
Construction Cost $90 million
Completion Date 2010
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