100 First



100 First



100 First

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Work. Thrive. First.

Step inside and the difference is clear. At 100 First, work and life merge effortlessly together. Grab a coffee in the airy, sun-soaked lobby. Find a quiet moment on the public garden terrace. Enjoy a dizzying array of fine dining, boutique fitness, and lodging options located just outside your door. Welcome to the heart of San Francisco’s vibrant South Financial District. Welcome to 100 First.

To learn more about this and other Kilroy properties, please visit kilroyrealty.com.

Vendor Access

If you are a vendor and you are planning on visiting 100 First Street, you must submit a vendor access request prior to your visit.


100 First Retail Tenants Open!

Starbucks and Lunette’s Optometric are open for business. Visit our retailers and support local businesses!

Hours of Operation:

  • Starbucks: Mon – Fri 5 AM – 4 PM
  • Lunettes Optometric: Mon – Fri 9 AM – 5 PM


100 First is now a BOMA 360 Performance Building!

We are proud to announce that 100 First has just been named a BOMA 360 Performance Building!  It is an honor to be among an elite group of properties recognized for excellence in all areas of operations and management.  For more information on this prestigious program, click here

EPA’s Energy Star Award

By cutting energy waste and doing our part to protect the environment, 100 First has earned the U.S EPA’s Energy Star! Our building uses 35% less energy and generates 35% fewer greenhouse gas emissions than similar buildings across the nation. Learn more at energystar.gov/buildings


Office Managers, please create an account to access all of the building tools & resources.

Get Started