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Hotel and Venue Information

Westin St. Francis Hotel
335 Powell Street
San Francisco, CA 94102

This landmark hotel is in the heart of Union Square.  Timeless yet modern, The Westin St Francis Union Square has a vibrant, iconic destination in San Francisco.  As the only hotel located directly on Union Square, guest have the benefit of the best shopping, theater and dining options, as well as China Town and the Financial District just minutes away.


At this time, regretfully the BIO contracted rooming block at the Westin is full. While there are still rooms available at the Westin St. Francis, they are no longer available at the group rate of $359 which was available through September 23, 2019.

Reservations may still be made online directly with the hotel (, or by calling 800.WESTIN.1 (800.937.8461). Alternatively, there are other hotel choices close to Union Square.