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1 room, 2 adults

Inn At Union Square - A Greystone Hotel, San Francisco

3.5-star3.5 stars
440 Post StSan FranciscoCA94102United States of America

City-center hotel, steps from SHN Curran Theatre
  • Free continental breakfast and free WiFi
  • Collect nightsYou can collect® Rewards nights here
Good internet service
Delicious food
Great room
Tasty breakfast
344See all 344 reviews
From 1,894 reviewsTripAdvisor Traveller Rating

Inn At Union Square - A Greystone Hotel, San Francisco

from $209
  • Superior Studio 1 King
  • Superior Room, 1 Queen Bed
  • Superior Room, 1 King Bed
  • Superior Suite, 1 King Bed
  • Superior Studio, 1 Queen Bed

What’s around Inn At Union Square - A Greystone Hotel, San Francisco


  • In Downtown San Francisco
  • San Francisco Museum of Modern Art - 12 min walk
  • Moscone Convention Center - 14 min walk
  • AT&T Park - 28 min walk
  • Exploratorium - 28 min walk
  • San Francisco Bay - 29 min walk
  • Lombard Street - 32 min walk
  • Pier 39 - 33 min walk

Getting around

  • San Francisco, CA (SFO-San Francisco Intl.) - 27 min drive
  • Oakland, CA (OAK-Oakland Intl.) - 31 min drive
  • San Carlos, CA (SQL) - 35 min drive
  • Hayward, CA (HWD-Hayward Executive) - 36 min drive
  • Concord, CA (CCR-Buchanan Field) - 40 min drive
  • Novato, CA (NOT-Gnoss Field) - 46 min drive
  • San Francisco 4th and King Station - 27 min walk
  • San Francisco 22nd Street Station - 15 min drive
  • San Francisco Bayshore Station - 18 min drive
  • Powell St. Station - 6 min walk
  • Montgomery St. Station - 8 min walk
  • Embarcadero Station - 15 min walk
  • Valet parking (surcharge)

About Inn At Union Square - A Greystone Hotel, San Francisco

Inn At Union Square - A Greystone Hotel is a smoke-free hotel located in San Francisco, Calif., one-half block from Union Square. The hotel stands within five blocks of the Financial District, the Museum of Modern Art and the Moscone Convention Center. Coit Tower and North Beach are located one mile away.

Hotel Features.
The smoke-free Inn At Union Square - A Greystone Hotel serves complimentary continental breakfasts that include freshly baked croissants. Wireless Internet access is complimentary throughout the hotel. A business center provides complimentary high-speed Internet access and print services. Front desk staff provides concierge services. The hotel offers discounted passes to a nearby fitness center. Valet parking is available for a fee. Cats and small dogs are considered with refundable fees required.

The six-story Inn at Union Square offers 30 guestrooms with 32-inch, flat-screen televisions and complimentary wireless Internet access. Rooms are individually decorated and feature furnishings with textured fabrics in hues of sage, cream and gold. Beds are triple sheeted and are topped with down pillows. Laptop-compatible, in-room safes are complimentary. Bathrooms are stocked with Aveda bath products and feature terry-cloth bathrobes. Rooms are not air conditioned, but windows open.


At a glance

Key facts

Hotel size

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


  • Check-in time starts at 3 PM
  • Check-out time is noon

Required at check-in

  • Credit card deposit required

  • Government-issued photo ID required

Travelling with others


  • No cribs (infant beds)


  • Pets not allowed


  • Free WiFi in public areas

  • Free WiFi in rooms



  • Valet parking *

Other information

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

In the hotel

Food and drink
  • Free continental breakfast daily
  • Free reception
  • Coffee/tea in a common area
Things to do
  • Use of nearby fitness center (discount)
  • Bicycle rentals nearby
Working away
  • Business center
  • 24-hour front desk
  • Concierge services
  • Tours/ticket assistance
  • Limo or Town Car service available
  • Dry cleaning/laundry service
  • Free newspapers in lobby
  • Luggage storage
  • Wedding services
  • Multilingual staff
  • Porter/bellhop
  • Number of buildings/towers - 1
  • Elevator/lift
  • Safe-deposit box at front desk
  • Fireplace in lobby
  • Accessible bathroom
  • In-room accessibility
  • Roll-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
  • Refrigerator (on request)
  • Free bottled water
  • Daily housekeeping
  • In-room safe (laptop compatible)

Inn At Union Square - A Greystone Hotel, San Francisco’s small print

Also known as

  • Inn Union Square
  • Union Square Inn
  • 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


Additional policies apply to bookings reserved by persons under the age of 18. For more details, contact the property using the information provided after booking.

Please note that cultural norms and guest policies may differ by country and by property. The policies listed are provided by the property.

Optional extras

Valet parking costs USD 53.00 per day

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.

Recent reviews

Superb 9.2 From 344 reviews

Inn At Union Square - A Greystone Hotel, San Francisco
Very Good8.0
Nice SF Hotel Btwn Farallon & Morton's Resaturants
Overall, our stay at this hotel was great. This is a quaint, small hotel located between Powell & Mason Streets, and literally between 2 really good restaurants: The Farallon (if you like seafood) and Morton's Steakhouse. You are in the heart of Union Square, and lots of other restaurants nearby. We stayed in a small room with a Queen-size bed and the room was very clean and comfortable for the overnight stay. Employees are courteous and friendly. They have happy hour with wine & cheese & fruits in the evening at their 2nd floor parlor, which was nice. Also have a continental breakfast on-site. They also have valet; however, please note that the parking garage used by valet service is 4 blocks away and getting your car takes time. It took 30 minutes before our car was delivered in the morning (9-10 am). So plan ahead when using valet service. I believe the valet services other nearby hotels, so that could be the factor in the timing for getting your car delivered to you. I would stay at this hotel again.
A Traveler, us1 night trip
Inn At Union Square - A Greystone Hotel, San Francisco
Very Good8.0
We love staying at this hotel. Our only objection this time is the housekeeping staff did not make up our room when we were out for the day. I'm sure they were busy with people checking out. It might help if they had a "Please make up a room" sign as a door hanger.
KATHLEEN, us2 night romance trip
Inn At Union Square - A Greystone Hotel, San Francisco
Very Good8.0
Great location with friendly staffs. Wine hours were great but tight space made it uncomfortable specially where there were other patties around...
David, us5 night trip
Inn At Union Square - A Greystone Hotel, San Francisco
Love it!
We were here over Thanksgiving weekend. Perfectly located a few minutes walk from Union Square.
A Traveler, us3 night trip
Inn At Union Square - A Greystone Hotel, San Francisco
I loved staying at the Inn at Union Square! I have stayed at numerous hotels around Union Square, and now I have a favorite one that I can return to. Anna at check-in was over the top friendly in a warm and sincere kind of way. I felt as if I was being welcomed by family. I received the same warm welcome from Lucky in housekeeping. My room was extremely clean and comfortable. The breakfast was more substantial and delicious than I had anticipated. I had a prior commitment, so sadly I missed the hotel's daily cocktail hour. Overall, I was thrilled with my stay and will always book at the Inn at Union Square for all my future trips to San Francisco. I hope to be back soon!
Marcia, us2 night business trip

See all reviews

Inn At Union Square - A Greystone Hotel, San Francisco

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