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1 room, 2 adults

Inn At Union Square

3.5-star3.5 stars
440 Post St, San Francisco, CA, 94102, United States of America

Boutique hotel, steps from SHN Curran Theatre
  • Free WiFi
  • Collect stampsYou can collect™ Rewards stamps here

Restrictions related to your trip

COVID-19 alert: Travel requirements are changing rapidly, including need for pre-travel COVID-19 testing and quarantine on arrival.  Check restrictions for your trip.

Property renovations and closures

This property is closed from December 1 2020 to September 30 2021 (dates subject to change).
  • Absolutely amazing location. Great staff who would greet you all the time. Got a nice…Feb. 6, 2020
  • This is a gorgeous and unique hotel. The team that work there are so friendly and super…Jan. 5, 2020

Inn At Union Square

  • Superior Room, 1 King Bed
  • Superior Room, 1 Queen Bed
  • Superior Studio, 1 King Bed
  • Superior Suite, 1 King Bed
  • Superior Studio, 1 Queen Bed

What’s around Inn At Union Square


  • In Downtown San Francisco
  • San Francisco Museum of Modern Art - 11 min walk
  • Moscone Convention Center - 13 min walk
  • Orpheum Theater - 16 min walk
  • San Francisco City Hall - 24 min walk
  • Exploratorium - 26 min walk
  • Lombard Street - 27 min walk
  • Oracle Park - 29 min walk

Getting around

  • San Francisco International Airport (SFO) - 19 min drive
  • Oakland Intl. Airport (OAK) - 25 min drive
  • Concord, CA (CCR-Buchanan Field) - 35 min drive
  • San Francisco Station - 23 min walk
  • 22nd Street Station - 4 min drive
  • Bayshore Station - 9 min drive
  • Powell St & Post St Stop - 1 min walk
  • Powell St & Geary Blvd Stop - 2 min walk
  • Powell St & Sutter St Stop - 2 min walk

At a glance

Key facts

Hotel size

  • This hotel has 30 rooms
  • This hotel is arranged over 6 floors


  • Check-in time 3:00 PM-anytime
  • Check-out time is noon

Restrictions related to your trip

  • COVID-19 alert: Travel requirements are changing rapidly, including need for pre-travel COVID-19 testing and quarantine on arrival.
Front desk staff will greet guests on arrival. An adult age 18 or older must assume all liability for the booking.

Required at check-in

  • Credit card required for incidental charges

  • Government-issued photo ID may be required

  • Minimum check-in age is 18

Travelling with others


  • No cribs (infant beds)


  • Pets not allowed (service animals welcome)


  • Free WiFi in public areas

  • Free WiFi in rooms



  • Wheelchair-accessible parking on site

Payment types at the property

Other information

  • Smoke-free property
*See small print for additional details or extra charges

In the hotel

Food and drink
  • Room service
Things to do
  • Bicycle rentals nearby
  • Scooter/moped rentals nearby
  • 24-hour front desk
  • Concierge services
  • Tours/ticket assistance
  • Dry cleaning/laundry service
  • Laundry facilities
  • Free newspapers in lobby
  • Luggage storage
  • Wedding services
  • Multilingual staff
  • Porter
  • Number of buildings/towers - 1
  • Lift
  • Safe-deposit box at front desk
  • Fireplace in lobby
  • Braille or raised signage
  • Accessible bathroom
  • In-room accessibility
  • Roll-in shower
  • Wheelchair accessible
  • Wheelchair-accessible path of travel
  • Wheelchair-accessible parking
  • Low-height bed
  • Grab bar - in shower
Languages Spoken
  • English
  • Spanish

In the room

Home comforts
  • Ceiling fan
  • Coffee/tea maker
  • Bathrobes
  • Slippers
  • Iron/ironing board
Sleep well
  • Hypo-allergenic bedding available
  • Blackout drapes/curtains
  • Turndown service
  • Premium bedding
  • Pillowtop mattress
Things to enjoy
  • In-room massage available
Freshen up
  • Private bathroom
  • Shower only
  • Designer toiletries
  • Hair dryer
Be entertained
  • 32-inch flat-screen TV
  • Premium TV channels
  • Tablet computer
Stay connected
  • Desk
  • Free weekday newspaper
  • Free WiFi
  • Phone
Food and drink
  • Fridge (on request)
  • Free bottled water
  • In-room safe (laptop compatible)

Inn At Union Square’s small print

Also known as

  • Inn Union Square
  • The Inn At Union Square Hotel San Francisco
  • Inn At Union Square Hotel
  • Inn At Union Square San Francisco
  • Inn At Union Square A Greystone Hotel
  • Inn At Union Square Hotel San Francisco
  • Inn Union Square Greystone Hotel
  • Union Square Greystone
  • Inn At Union Square
  • Union Square Greystone San Francisco


Guests can rest easy knowing there's a carbon monoxide detector, a fire extinguisher, a smoke detector, and a security system on site.

This property advises that enhanced cleaning and guest safety measures are currently in place.

Disinfectant is used to clean the property; commonly-touched surfaces are cleaned with disinfectant between stays; bed sheets and towels are laundered at a temperature of at least 60°C/140°F.

Social distancing measures are in place; staff at the property wear personal protective equipment; periodic temperature checks are conducted on staff; guests are provided with hand sanitizer; contactless room service is available; masks are required in public areas.

Contactless check-in and contactless check-out are available.

Enhanced food service safety measures are in place.

Each guestroom is kept vacant for a minimum of 72 hours between bookings.

This property affirms that it adheres to the cleaning and disinfection practices of SafeStay (AHLA - USA).

The name on the credit card used at check-in to pay for incidentals must be the primary name on the guestroom reservation.

This property accepts credit cards. Cash is not accepted.

We have included all charges provided to us by this property. However, charges can vary, for example, based on length of stay or the unit you book.

FAQs for Inn At Union Square

  • Does Inn At Union Square offer free cancellation for a full refund?
    Yes, Inn At Union Square does have fully refundable rooms available to book on our site, which can be cancelled up to a few days before check-in. Just make sure to check this property's cancellation policy for the exact terms and conditions.
  • Is Inn At Union Square currently open?
    This property is closed from December 1 2020 to September 30 2021 (dates subject to change).
  • What are the cleanliness and hygiene measures currently in place at Inn At Union Square?
    This property confirms that disinfectant is used to clean the property. Furthermore, guests are provided with hand sanitizer, social distancing measures are in place, and gives staff personal protective equipment. Please note that this information has been provided by our partners.
  • Are pets allowed at Inn At Union Square?
    Sorry, pets aren't allowed, but service animals are welcome.
  • What are the check-in and check-out times at Inn At Union Square?
    You can check in from 3:00 PM - anytime. Check-out time is noon. Contactless check-in and check-out are available.
  • Are there restaurants at or near Inn At Union Square?
    Yes. Nearby restaurants include Roxanne Cafe (3-min walk), Uncle Vito's Pizzeria (3-min walk), and Cafe Mason (3-min walk).
  • Is there an onsite casino at Inn At Union Square?
    No, this hotel doesn't have a casino, but San Pablo Lytton Casino (21-min drive) is nearby.
  • What is there to do at Inn At Union Square and nearby?
    Have fun during the warmer months with activities nearby such as cycling.

Recent reviews

Exceptional 9.4 From 292 reviews

Exceptional 10.0
Excellent property with a wonderful atmosphere. Everything perfect except transport to airport was made on the wrong day which left us with a stressful ending to an otherwise perfect stay.
au2 night romance trip
Exceptional 10.0
This was a great stay in San Francisco. Good location for transport being next to union square.bus tours, cable tram and train to airport were ally easy and nearby. Staff were fantastic, Joan, Zen, Tony, , helpful and friendly. Room was very clean , spacious with great amenities and a comfy bed. Would stay again.
Frank, au1 night romance trip
Exceptional 10.0
Great location, very friendly staff, very nice room and great cookies, wine and cheese
au2 night romance trip
Exceptional 10.0
Excellent hotel and staff. Will definitely stay here again when next in San Francisco.
au3 night romance trip
Exceptional 10.0
Excellent boutique hotel just steps away from Union Square in safe part of SF. Very hospitable staff, modern and clean rooms.
au4 night business trip
Exceptional 10.0
Love love loveeeed this hotel! I always read reviews online before I book things, especially when they are as pricey as hotels in SF. The reviews weren't great for this place which made me nervous, but from the moment I arrived I was so glad I made this choice. I'd like to address the reviews about small living spaces - it would really depend on your room choice. If you're picking a standard or deluxe room, youll find in this area almost all those room types will not even allow you to open a suitcase. I booked a suite to negate this space issue and was not disappointed. Moral of that recommendation is - you get what you pay for in the sense that, if you want a king room in the literal centre of union square, its going to be small. Outside of my room being well appointed, super warm (because SF was freezing when I went) and clean - I also was gifted a bottle of wine and chocolates on arrival. The Staff blew me away with how they operate and what they did for their guests. Big mention to Ann and Joshua for making my stay what it was... amazing. Give this hotel a chance, but understand - city living in SF means less space but bigger price, not just this hotel but anywhere. Thank you to the entire team for exceeding every expectation!
au2 night trip
Exceptional 10.0
Great boutique hotel in Union Square
Great hotel in Union Square that is close to great shopping areas of San Francisco. The afternoon wine and cheese is a nice touch and the American continental breakfast has something for most tastes to get your day started. Would recommend and would stay again. The staff were all very helpful and kind.
Trent, au4 night romance trip
Exceptional 10.0
Friendly staff, central location. Great boutique hotel.
au3 night romance trip
Exceptional 10.0
Great location and very comfortable
Delightful place to stay - stylish and comfortable while surprisingly spacious. Very personable staff - great dinner suggestion of Italian restaurant. Lovely idea having drinks for happy hour. Nice way to meet other travelers. Only downside for us was the breakfast which was not our style. We prefer whole foods, less sugary, carb heavy options. Fruit salad was appreciated. Would definitely recommend staying there.
Peter, au3 night romance trip
Exceptional 10.0
Great Hotel, Great Location - Staff were first class and the personal touches they bring like champagne on arrival, nightly cheese and wine.
au7 night trip

Inn At Union Square