Skidmore, Owings & Merrill LLP


33,000 square feet


Skidmore, Owings & Merrill LLP


© SOM/Dave Burk


The client for this project, Skidmore, Owings & Merrill (SOM), is a global architectural, urban planning, and engineering firm with a rich San Francisco history. In fact, SOM has had an office in San Francisco since 1946, and designed the very building that houses their new headquarters. Built in 1964, One Maritime is one of the earliest buildings to use seismic bracing in the form of visible external trusses and X-braces.

After 25 years at another location, SOM decided to create a new space in the familiar structure. That’s where GCI came in.

Part office and part showroom, the new digs at One Maritime feature 1.5 floors of creative workspace with conference rooms, collaboration areas, and a centralized building model display and materials library with ultra-high CRI LED lighting. The staircase connecting the floors is an angled plate steel stair, which had to be finished after office move-in. SOM sought both LEED and WELL certifications for the office, with new versions of both rating systems (LEED v4.1 and WELL v2) introduced while the project was in pre-construction.  This provided an opportunity for everyone involved to test the most advanced ideas in green building and workplace wellness. Indoor air quality was of the utmost importance to SOM and the building owner, who wanted to maintain healthy environments for existing tenants on adjacent floors.

The extra care GCI took to adhere to its Indoor Air Quality Management Plan along with GCI’s thorough material vetting during procurement, ensured that SOM would pass the rigorous air testing protocols required by LEED and WELL, even without a building flush out. Construction was completed in August 2019 and the project is pending LEED Certification (v4.1) and WELL Certification (v2), both at the Gold level.

A true San Francisco story, SOM now occupies an innovative and sustainable space in the historical property they brought to life so many years ago.

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