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Inn At Union Square

Boutique hotel within easy reach of San Francisco Museum of Modern Art

  • Free WiFi

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  • Interior Entrance
  • Interior Entrance
  • Suite (Spreckels) - Living Area
  • Suite (Spreckels) - Living Area
  • Interior Entrance
Interior Entrance. Image 1 of 18.
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440 Post St, San Francisco, 94102, CA, United States of America
  • Was not sure what to expect when we 1st looked at the pictures but what a wonderful hotel…

    Oct 14, 2021

  • It was great overall. My wife and I stayed for our anniversary, which the hotel provided…

    Oct 2, 2021

See all 293 reviews

Official standards

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

Enhanced health and safety measures

This property advises that enhanced cleaning and guest safety measures are currently in place.
  • Property is cleaned with disinfectant
  • Staff wears personal protective equipment
  • Property confirms they are implementing enhanced cleaning measures
  • Social distancing measures are in place
  • Gap period enforced between guest stays - 72 hours
  • Contactless check-in is available
  • Guests are provided with free hand sanitizer

Guests rated location

Dining options
  • Free WiFi
  • Non-smoking

Property highlights

Main amenities

  • 30 smoke-free guestrooms
  • Housekeeping (on request)
  • Free WiFi

For families

  • Private bathroom
  • Premium TV channels
  • Television
  • Free toiletries
  • Iron/ironing board
  • Hair dryer

What’s around

  • In Downtown San Francisco
  • Oracle Park - 27 min walk
  • Lombard Street - 27 min walk
  • Pier 39 - 31 min walk
  • Ghirardelli Square - 32 min walk
  • San Francisco Museum of Modern Art - 11 min walk

Book this property and collect stamps after your stay

Remember, collect 10 stamps, get 1 reward* night

Enter dates for 2 guests

  • 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
  • Superior Room, 1 King Bed, Accessible
  • Suite (Spreckels)

What’s around


  • In Downtown San Francisco
  • Oracle Park - 27 min walk
  • Lombard Street - 27 min walk
  • Pier 39 - 31 min walk
  • Ghirardelli Square - 32 min walk
  • San Francisco Museum of Modern Art - 11 min walk
  • Moscone Convention Center - 13 min walk
  • Orpheum Theater - 16 min walk
  • Embarcadero Center - 18 min walk
  • Bill Graham Civic Auditorium - 19 min walk
  • Ferry Building - 20 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
Profile: Union Square

Profile: Union Square

Union Square has an upmarket, European feel, with well-heeled shoppers drifting through monolithic department stores and luxury boutiques in one of the world’s foremost shopping districts. Prada, Burberry, and Louis Vuitton all do a smashing business here. Many of the restaurants offer open-air dining and eclectic, world-spanning menus, running the gamut from Californian-Indian fusion dishes prepared by a Michelin-starred chef, to Italian-style pizzas enjoyed around communal tables.

In the winter, the square’s a popular spot with native Californians who make a pilgrimage to see the giant Christmas tree and outdoor ice skating rink. Union Square’s theater district is also worth a journey, as it’s home to the famed American Conservatory Theater.

See on map
440 Post St, San Francisco, 94102, CA, United States of America

At a glance

Hotel size

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


  • Check-in time 4:00 PM-11:00 PM
  • Check-out time is 11:00 AM

Restrictions related to your trip

  • Check COVID-19 restrictions.

Special check-in instructions

There is no front desk at this property. This property doesn't offer after-hours check-in. Guests will receive an email 24 hours before arrival with check-in instructions and an access code. Guests can access their accommodation through a private entrance. 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


  • No cribs (infant beds)


  • Pets not allowed (service animals welcome)


  • Free WiFi in public areas
  • Free WiFi in rooms


  • Wheelchair-accessible parking on site

Other information

  • Smoke-free property
*See fees & policies for additional details or extra charges

In the hotel

Things to do

  • Bicycle rentals nearby
  • Scooter/moped rentals nearby


  • Number of buildings/towers - 1
  • Elevator


  • 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 WiFi
  • Phone

Food and drink

  • Refrigerator (on request)


  • In-room safe (laptop compatible)

Fees & policies

PetsPay at property

  • Service animals exempt from fees

Hygiene & cleanliness

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).


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

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 Visa, Mastercard, American Express, Discover and Eurocard. Cash is not accepted.

Also known as

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

*See fees & policies for additional details or extra charges


  • Yes, Inn At Union Square does have fully refundable room rates available to book on our site. If you’ve booked a fully refundable room rate, this can be cancelled up to a few days before check-in depending on the property's cancellation policy. Just make sure to check this property's cancellation policy for the exact terms and conditions.
  • 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 staff are given personal protective equipment. Please note that this information has been provided by our partners.
  • Sorry, pets aren't allowed, but service animals are welcome.
  • You can check in from 4:00 PM - 11:00 PM. Check-out time is 11:00 AM. Contactless check-in and check-out are available.
  • Yes. Nearby restaurants include Roxanne Cafe (3-min walk), Uncle Vito's Pizzeria (3-min walk), and Cafe Mason (3-min walk).
  • No, this hotel doesn't have a casino, but San Pablo Lytton Casino (21-min drive) is nearby.
  • Have fun during the warmer months with activities nearby such as cycling.
  • 10.0.Exceptional

    Native San Franciscans

    We had a great room with a very comfortable bed. The hotel is very close to Union Square.

    Gordon, 2 night trip, Sep 14, 2021

    Verified guest review

  • 10.0.Exceptional

    Great Union Square location. Very quiet hotel! Smaller, older building that has been updated. My room was small but super comfy beddings, and nice clean modern bathroom. Kind of sexy with my girlfriend. Electronic checkin was ok. Stay here for a nice SF stay! 👍

    Roland, 1 night trip, Sep 7, 2021

    Verified guest review

  • 8.0.Very good

    I wish I knew before I picked the hotel that there’s no front desk. My stay was great but I may have thought twice about this hotel as a single woman staying alone in a city if I knew that information up front. That is my only reservation about booking this hotel. Everything else about the stay was great.

    3 night trip, Sep 5, 2021

    Verified guest review

  • 8.0.Very good

    Wonderful for solo trip to San Francisco

    The Inn at Union Square was a great hotel for the solo trip I took for Labor Day weekend. The digital check in and check out was convenient and I liked having a personalized code for the entrance and room. When I put out the "Maid service please" sign they were quick to tidy up the room. It's located in an area where there are things to do and easy to travel to other parts of the city. Only dislike I had was the continuous pending charge of $200 that was put on my card even though there was a credit card on file and the room was paid for.

    3 night trip, Sep 3, 2021

    Verified guest review

  • 10.0.Exceptional

    Best Hotel Ever!

    The minute we walked in this hotel we were greeted by the agent with such welcoming! He went out of his way to make sure we got an early check in. When we arrived in our room, I was speechless because of the price we paid and the type of room we got. The room was very spacious and clean and comfy. Everything was perfect and the staff was very friendly. I'm still amazed at how the room and hotel were clean. I'll definitely be staying here every time I am in San Francisco!

    Anil, 3 night trip, Aug 23, 2021

    Verified guest review

  • 10.0.Exceptional

    Great experience. Nice clean cozy room. Very close to everything. Within walking distance. Very short walk to the cable cars. Easy check in and out. Would stay here again.

    Luis, 2 night trip, Aug 19, 2021

    Verified guest review

  • 6.0.Good

    Decent Hotel

    Very odd not having anyone at the front desk. Hotel coffee was horrible, not much ice in the ice bucket. Room was not ready on time. It was nice the key code worked perfectly. Ceiling fan was great since it was stuffy and warm.

    1 night trip, Aug 17, 2021

    Verified guest review

  • 10.0.Exceptional

    GREAT 👍

    vicely, 2 night family trip, Aug 14, 2021

    Verified guest review

  • 10.0.Exceptional

    Return customer

    I appreciate the value for this location and comfort!

    1 night business trip, Aug 5, 2021

    Verified guest review

  • 8.0.Very good

    I stayed here before and there was breakfast. Now only coffee. I didn’t love the keypad check in

    griet, 3 night business trip, Aug 3, 2021

    Verified guest review

See all 293 reviews