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“Crowd-pleasing B&B” -- Fodor’s

Inn At Union Square

Union Square, San Francisco
  • Bustling Union Square neighborhood
  • A former antiquarian bookstore, the charming inn has only 30 rooms
  • Complimentary extras include daily continental breakfast, an evening wine & cheese hour and Wi-Fi

Member rates available


440 Post St
San Francisco, CA, 94102
United States Map & Directions
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Visit a plethora of eclectic shops, restaurants and attractions just steps from the entrance of The Inn at Union Square in downtown San Francisco. With only 30 guest rooms, the hotel provides an intimate, unique San Franciscan experience. Dating back to 1912 as an antiquarian bookstore with accommodations, the inn is filled with character and charm.

Although this hotel is in the heart of Union Square, it still gives guests a sense of retreat. Start the day with a hearty continental breakfast and mingle with other guests after a day of exploration with a complimentary fireside evening reception, complete with a selection of local wine and cheeses.

As a member of the California Green Lodging Association, The Inn at Union Square is committed to engaging in best practices for energy efficiency and environmental sustainability. They participate in the Clean World Program by donating excess shampoos, soaps and other bath amenities that are typically discarded. 

From the press:
  • "This crowd-pleasing B&B provides a retreat from the hustle of Union Square while being located in the heart of it all" -- Fodor’s 
  • "For a boutique hotel right next to Union Square, you can't get much better than this little gem" -- Frommer's


  • Infant cots / cribs
  • Newspaper / magazines
  • Gym / fitness center
  • No pets allowed
  • 100% smoke-free


  • 24-hour front desk
  • Concierge service
  • Laundry / dry cleaning
  • Safe in reception (fees apply)
  • Business center

Room amenities

  • Coffee / tea-making facilities
  • Iron and ironing board
  • Safe
  • Flatscreen TV


  • Complimentary Internet access
  • Complimentary Wi-Fi throughout


  • Bathrobes
  • Hair-dryer
  • Luxury toiletries
  • Bathtub (in some rooms)


  • Valet service (fees apply)


  • Accessible bathroom in some rooms
  • Accessible meeting room
  • Accessible parking
  • Accessible path of travel
  • ADA compliant rooms
Please note: Some amenities may not be available in all rooms and some amenities or services incur an additional charge and are subject to change. Please check with the hotel directly.


  • Standard check-in time: 3pm.  Minimum age required to check in: 21.


  • Standard checkout time: 12pm

Children and additional guests

  • Children 12 and under stay free of charge when sharing parents’ room and using existing bedding (on request).
    Cribs are available on request and in the Studios and Suites only, free of charge.
    Extra beds are not available.


  • No pets allowed.


  • Cancellation policy & booking conditions vary by 'rate plan'. These will be displayed on the payment page after you have searched for your dates and selected a rate.

Getting there

The Inn at Union Square is a 20-minute drive from San Francisco International Airport. It is around a $60 cab fare.


  • 440 Post St
  • San Francisco, CA, 94102
  • United States

Customer Service

Prefer to book over the phone?

Tel: +44 (0) 20 3564 9000

agents available 24 hours

Questions? Check out our FAQs or give us a call.

Rates may vary by date, are subject to availability and are not guaranteed until your purchase is complete.

You will pay the hotel in the hotel's local currency. The rate displayed (in GBP) is an estimate based on today's currency exchange rate.

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