Be First.

From its distinctive design to its numerous on-site amenities, 100 First Street sets itself immediately apart from every other commercial property in San Francisco. Located steps away from the new Transbay Transit Center—with easy access to a wide range of fine and casual dining, boutique fitness, and quality lodging options—this Class-A highrise puts all the excitement and energy of San Francisco right outside your door.

Featuring 27 floors of customizable office and workspace plans, a wealth of natural light, incredible city views, and a flourishing garden terrace ranked one of the top 10 public open spaces in San Francisco, 100 First offers the ideal environment to welcome employees, clients, and customers to your business.

Designed by Skidmore, Owings & Merrill and built in 1988, 100 First is proud to have received the Outstanding Building of the Year Award in 2020 and LEED Gold Certification by the U.S. Green Building Council in 2009.

For more about 100 First and other Kilroy properties, please visit kilroyrealty.com.

First of its Kind

The building was one-of-a-kind in SOMA when it was built in 1988 and  paved the way for other developers to see the potential of the district. 100 First Street is now at the center of some of the city’s most ambitious developments, including the Transbay Transit Center, a $4.5 billion project with a regional transit hub and Salesforce Tower, the centerpiece of the San Francisco Transbay redevelopment plan.


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