Stay in the Heart of San Francisco


Book Now   Learn More


The Mosser is an Award-Winning Distinctively Artful Hotel in the Heart of Downtown San Francisco


Fusing historic Victorian architecture with sleek modern design, it exists as a charming retreat amidst the hustle and bustle of our city by the bay.

Conveniently located between the city’s renowned Union Square (shopping district) and the Moscone Convention Center, both business and leisure travelers will find excellent shopping, touring and nightlife within blocks from their hotel room. Foodies will rejoice at the convenience and quality of our adjoining restaurant, The Keystone, where elevated cocktails and globally-inspired menu options are sure to satisfy every palate.

The Mosser’s non-smoking guest rooms incorporate custom-designed furnishings for ingenious space-efficiency and a unique flair. The stylish ambience provides warmth, charm and comfort.





The Keystone Social House


Adjacent to the lobby of The Mosser Hotel, The Keystone offers crave-worthy, New American comfort food with global influences and a distinct beverage program that includes high quality spirits and rare flavor combinations. The heart of the restaurant is a twelve-seat communal table in the dining room and a long bar complete with chef’s counter to an open kitchen. For meetings and events, there is a private dining space outfitted with complete AV technology capabilities.

The Keystone Social House is currently closed until further notice.


Visit The Keystone






Deals & Packages


Summer Lovin’!

San Francisco is heating up! To kick it off come stay with us and receive:

  • A bubbly bottle of Rose Prosecco to enjoy in your room or take with you on a fun picnic
  • Deluxe accommodations
  • Complimentary Wi-Fi
  • Late check-out (4pm)

Book Now

Pump It Up!

Take a road trip and be prepared to leave your heart in San Francisco! Stay with us at the Mosser Hotel and receive:

  • A $10 Gas Card per stay
  • Relax and recharge with deluxe room accommodations
  • Complimentary Wi-Fi
  • Late check-out (4pm)

Book Now