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Inn At Union Square

3.5 star property
3.5-star boutique hotel near Moscone Convention Center

Choose dates to view prices

Photo gallery for Inn At Union Square

Premium bedding, pillowtop beds, in-room safe, desk
Meeting facility
Exterior
Reception
32-inch flat-screen TV with cable channels, TV

Reviews

9.2 out of 10
Wonderful

Popular amenities

  • Free WiFi
  • Business services
  • Housekeeping
  • 24/7 front desk

Explore the area

View in a map
440 Post St, San Francisco, CA, 94102
  • Place, Union Square
    ‪1 min walk‬
  • Place, Westin St Francis Hotel Glass Elevators
    ‪2 min walk‬
  • Place, SF Masonic Auditorium
    ‪5 min walk‬
  • Airport, San Francisco, CA (SFO-San Francisco Intl.)
    ‪24 min drive‬

Room options

View all photos for Superior Room, 1 King Bed

Premium bedding, pillowtop beds, in-room safe, desk

Superior Room, 1 King Bed

9.4 out of 10
Exceptional
(38 reviews)
  • Sleeps 2
  • 1 King Bed

View all photos for Superior Room, 1 Queen Bed

Premium bedding, pillowtop beds, in-room safe, desk

Superior Room, 1 Queen Bed

9.2 out of 10
Wonderful
(122 reviews)
  • Sleeps 2
  • 1 Queen Bed

View all photos for Superior Studio, 1 King Bed

Premium bedding, pillowtop beds, in-room safe, desk

Superior Studio, 1 King Bed

9.4 out of 10
Exceptional
(12 reviews)
  • Sleeps 2
  • 1 King Bed

View all photos for Superior Suite, 1 King Bed

Premium bedding, pillowtop beds, in-room safe, desk

Superior Suite, 1 King Bed

9.8 out of 10
Exceptional
(12 reviews)
  • Sleeps 2
  • 1 King Bed

View all photos for Superior Studio, 1 Queen Bed

Premium bedding, pillowtop beds, in-room safe, desk

Superior Studio, 1 Queen Bed

9.4 out of 10
Exceptional
(23 reviews)
  • Sleeps 2
  • 1 Queen Bed

View all photos for Superior Room, 1 King Bed, Accessible

Superior Room, 1 King Bed, Accessible

Superior Room, 1 King Bed, Accessible

9.4 out of 10
Exceptional
(12 reviews)
  • Sleeps 2
  • 1 King Bed

View all photos for Suite (Spreckels)

Premium bedding, pillowtop beds, in-room safe, desk

Suite (Spreckels)

10.0 out of 10
Exceptional
(4 reviews)
  • Sleeps 2
  • 1 King Bed

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About the area

San Francisco

Union Square stay.At this Union Square hotel, you'll be steps from Union Square and within a 15-minute walk of Moscone Convention Center. Oracle Park and Pier 39 are also within 2 miles (3 km).

What's nearby

  • Union Square - 1 min walk - 0.1 km
  • Westin St Francis Hotel Glass Elevators - 2 min walk - 0.2 km
  • SF Masonic Auditorium - 5 min walk - 0.4 km
  • San Francisco Museum of Modern Art - 10 min walk - 0.8 km
  • Moscone Convention Center - 11 min walk - 1.0 km

Getting around

  • Powell St & Post St Stop - 1 min walk
  • San Francisco Station - 2 min drive
  • San Francisco Intl. Airport (SFO) - 30 min drive

Restaurants

  • ‪Golden Gate Tap Room - ‬1 min walk
  • ‪7-Eleven - ‬2 min walk
  • ‪Pacific Cocktail Haven - ‬3 min walk
  • ‪Westin St Francis - Imperial Room - ‬1 min walk
  • ‪Level III - ‬2 min walk

About this property

Inn At Union Square

3.5-star boutique hotel near Moscone Convention Center
Free breakfast is available daily. WiFi is free in public spaces. The boutique Inn At Union Square also features a vending machine and an elevator.

This 3.5-star San Francisco hotel is smoke free.

  • 1 building
  • 30 guestrooms or units
  • 6 levels
  • Continental breakfast (free)
  • Front desk (24 hours)
  • Elevator
  • No smoking on site
  • 1 conference room
Inn At Union Square offers 30 accommodations with laptop-compatible safes and coffee/tea makers. Pillowtop beds feature premium bedding. 32-inch flat-screen televisions come with premium cable channels. Bathrooms include showers, bathrobes, designer toiletries, and complimentary toiletries.

This San Francisco hotel provides complimentary wireless Internet access, with a speed of 100+ Mbps (good for 1–2 people or up to 6 devices). Business-friendly amenities include desks and phones. Additionally, rooms include hair dryers and irons/ironing boards. Hypo-allergenic bedding, change of towels, and change of bedsheets can be requested. Housekeeping is provided daily.

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Property amenities

Family friendly

  • Mini-fridge

Internet

  • Available in all rooms: Free WiFi
  • In-room WiFi speed: 100+ Mbps (good for 1–2 people or up to 6 devices)
  • Available in some public areas: Free WiFi

Food and drink

  • Free continental breakfast available daily 8:00 AM to 11:00 AM

Accessibility

  • If you have requests for specific accessibility needs, please contact the property using the information on the reservation confirmation received after booking.
  • Braille/raised signage
  • Elevator
  • Grab bar in shower
  • Low-height bed
  • Wheelchair accessibility
  • Wheelchair accessible (may have limitations)
  • Wheelchair-accessible path of travel

Room amenities

Entertainment

  • 32-inch flat-screen TV with premium cable channels

Bedroom

  • Blackout drapes
  • Hypo-allergenic bedding
  • Pillowtop mattress
  • Premium bedding

Bathroom

  • Bathrobes
  • Designer toiletries
  • Hair dryer
  • Private bathroom
  • Shower
  • Toothbrush and toothpaste (on request)
  • Towels provided

Food and drink

  • Coffee/tea maker
  • Mini-fridge

More

  • Desk
  • Iron/ironing board
  • Laptop-compatible safe
  • Phone

Policies

Check-in

Check-in start time: 4:00 PM; Check-in end time: 11:00 PM
Early check-in subject to availability
Early check-in is available for a fee
Contactless check-in available
Late check-in subject to availability
Minimum check-in age: 18

Check-out

Check-out before 11:00 AM
Contactless check-out available
Late check-out subject to availability
A late check-out fee will be charged

Special check-in instructions

Front desk staff will greet guests on arrival at the property
If you are planning to arrive after noon please contact the property in advance using the information on the booking confirmation
Information provided by the property may be translated using automated translation tools

Access methods

Staffed front desk

Pets

  • No pets allowed, but service animals are welcome

Children and extra beds

  • Children are welcome.
  • Rollaway/extra beds are not available.
  • Cribs (infant beds) are not available.

Property payment types

Important information

Fees

Guests will be asked to pay the following charges at the property:

  • Deposit: USD 200 per accommodation, per stay
  • Resort fee: USD 25 per accommodation, per night
The resort fee includes:
  • Faxes
  • Housekeeping
  • In-room coffee
  • In-room safe
  • Phone calls

We've listed all charges provided to us by the property.

Optional extras

The fees and deposits listed below will be charged at the time of service, check-in, or check-out.

  • Early check-in is available for a fee (subject to availability)
  • Late check-out is available for a fee (subject to availability)

This may not be a comprehensive list. Fees and deposits are subject to change and might not include tax.

You need to know

Extra-person charges may apply and vary depending on property policy
Government-issued photo identification and a credit card may be required at check-in for incidental charges
Special requests are subject to availability upon check-in and may incur additional charges; special requests cannot be guaranteed
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
Cashless transactions are available
Safety features at this property include a carbon monoxide detector, a fire extinguisher, a smoke detector, and a security system
Charges for extra guests may apply and vary according to property policy.
A credit card for incidental charges and government-issued photo identification may be required upon check-in.
Special requests are subject to availability at the time of check-in. Special requests can't be guaranteed and may incur additional charges.
    This property is managed by a professional host. The provision of housing is linked to their trade, business, or profession. 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. 
    For guests' safety, the property includes a carbon monoxide detector, a fire extinguisher, a smoke detector, and a security system in each accommodation. Cashless payment methods are available for all transactions.

Property is 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
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

Frequently asked questions

How close is Inn At Union Square to the airport?

Inn At Union Square is 19.4 mi (38-min drive) away from the Oakland Intl. Airport (OAK) airport, the closest popular airport to the property.

How much does it cost to stay at Inn At Union Square?

As of Mar 14, 2026, prices found for a 1-night stay for 2 adults at Inn At Union Square on Mar 29, 2026 start from CA $153, excluding taxes and fees. This price is based on the lowest nightly price found in the last 24 hours for stays in the next 30 days. Prices are subject to change. Choose your dates for more accurate prices.

Does Inn At Union Square have an airport shuttle?

Airport shuttle services are not available at Inn At Union Square.

How close is Inn At Union Square to the beach?

This hotel is 6.2 mi (34-min drive) from Ocean Beach.

Does Inn At Union Square offer free breakfast?

Inn At Union Square offers free continental breakfast every day from 8:00 AM to 11:00 AM.

Is there a casino at Inn At Union Square?

No, there is no casino at this hotel, but Artichoke Joe's Casino (15-min drive) and San Pablo Lytton Casino (21-min drive) are nearby.

What time is check-in at Inn At Union Square?

Check-in start time: 4:00 PM; Check-in end time: 11:00 PM. A fee applies for early check-in.

Is there free parking at Inn At Union Square?

Free parking is not available at this hotel.

Does Inn At Union Square have a pool?

Inn At Union Square does not have a pool.

Does Inn At Union Square have a spa?

There are no spa services available at this hotel.

How close is Inn At Union Square to downtown San Francisco?

Inn At Union Square is 1.1 mi away from San Francisco.

Inn At Union Square Reviews

Reviews

9.2

Wonderful

Rating 10 - Excellent. 721 out of 1001 reviews
Rating 8 - Good. 176 out of 1001 reviews
Rating 6 - Okay. 58 out of 1001 reviews
Rating 4 - Poor. 19 out of 1001 reviews
Rating 2 - Terrible. 27 out of 1001 reviews

9.6/10

Cleanliness

9.4/10

Staff & service

8.6/10

Amenities

9.2/10

Property conditions & facilities

Reviews

10/10 Excellent

ERIC, Lincoln

Stayed 1 night in Jan 2026

10/10 Excellent

Tony

Liked: Cleanliness
Stayed 3 nights in Nov 2025

10/10 Excellent

Jason Douglas

Liked: Cleanliness, amenities, property conditions & facilities
Very clean and quiet room. Comfortable bed. Great location, within walking distance of a ton of bars, restaurants, coffee shops, and the BART transit stations. Will be staying here again for sure. Solid value.
Stayed 2 nights in Dec 2025

8/10 Good

Beverly

Stayed 3 nights in Dec 2025

10/10 Excellent

Vivien

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Stayed 1 night in Dec 2025

10/10 Excellent

Cindy

Travelled with group
Liked: Cleanliness, staff & service, amenities
It was an amazing place to stay!!!!
Stayed 3 nights in Dec 2025

10/10 Excellent

Brooke

Friendly, cozy, unique and a great value.
Stayed 1 night in Dec 2025

10/10 Excellent

Amal

Stayed 1 night in Nov 2025

10/10 Excellent

Adrian

Travelled with partner
Liked: Cleanliness, amenities, property conditions & facilities
The room was spotless the staff was very friendly and accommodating. The price was way better than I could have ever expected and it's in walking distance to shopping and SFMOMA!! Also less than a block away from secured overnight parking!! Can't wait to go back!! Thanks for you hospitality!!
Stayed 2 nights in Dec 2025

10/10 Excellent

Sibylle

Liked: Cleanliness, amenities, property conditions & facilities
Room was clean. Staff was very nice. Breakfast was good, too!
Stayed 4 nights in Dec 2025

10/10 Excellent

a j

Liked: Cleanliness, staff & service, amenities
A lovely little hotel with a friendly staff, clean rooms, and a great location.
Stayed 3 nights in Nov 2025

6/10 Okay

Von

Travelled with family
Liked: Cleanliness
Disliked: Amenities, property conditions & facilities
The location is excellent for this hotel, my wife and I stayed there during the Thanksgiving holiday of 2025, and we were both excited about touring and sightseeing the beautiful city of San Francisco Upon arrival we were greeted by the front desk person which was very cordial, but at the end of our check-in, she said she had bad news for us, and the bad news was that they’re elevator was not working and more than likely would not work during the duration of our stay. We were originally set to have a room on the fifth floor, but as a person with two knee replacements, hiking five floors to come and go from a hotel room is a little bit of a challenge. I immediately asked to be upgraded due to our inconvenience and be placed on a lower floor, which they were able to accommodate. The room was spacious clean well kept however our showers water pressure was very, very low and it struggled to get hot enough. The non working elevator actually hampered the comings and goings as having to climb stairs (narrow staircase, and in one area, a short ceiling where I bumped my head twice) to come or go from the hotel room to do anything was work. Overall, my wife and I still enjoyed San Francisco, but it wasn’t our ideal trip and I hope that the end that you square does resolve a few of these issues so that future guests won’t have these inconveniences to disrupt inconvenience their vacation.
Stayed 4 nights in Nov 2025

2/10 Terrible

Anthony

Disliked: Amenities, property conditions & facilities
Staff nice and helpful. Hotel very outdated, broken elevator, broken in room coffee maker, low water pressure, mix match decor, outdated heating, cold, and cramped. Switched hotel after one night.
Stayed 3 nights in Nov 2025

8/10 Good

Stephanie

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Room was very clean, staff was very friendly! Breakfast had limited options, not as varied and for some reason sink would take long to drain.
Stayed 3 nights in Nov 2025

10/10 Excellent

tiffany

Liked: Cleanliness, staff & service
Clean rooms and amazing staff
Stayed 1 night in Nov 2025

6/10 Okay

Maricelli Delgado, Tampa

Liked: Cleanliness
Disliked: Amenities
It was an issue with not having the elevator operating. They need to improve their maintenance schedule or inspection dates on time to avoid having guests going up and down the stairs with their luggage
Stayed 5 nights in Nov 2025

10/10 Excellent

Sarah

Business traveller
Liked: Cleanliness, amenities, property conditions & facilities
wonderful space, quit and clean - loved this space.
Stayed 2 nights in Nov 2025

8/10 Good

Sherry

Liked: Cleanliness, staff & service, amenities
Everyone was helpful and very nice. The room was good and the location great,
Stayed 2 nights in Nov 2025

8/10 Good

Concepcion

Liked: Cleanliness
Stayed 1 night in Nov 2025

10/10 Excellent

Viviana

Stayed 3 nights in Nov 2025

8/10 Good

Pedro

Great customer service
Stayed 1 night in Nov 2025

10/10 Excellent

Mario

Travelled with partner
Liked: Cleanliness, amenities, property conditions & facilities
Nice quaint lil spot..awesome experience.
Stayed 1 night in Nov 2025

6/10 Okay

Roland

Small rooms and tight halls
Stayed 2 nights in Nov 2025

10/10 Excellent

maria e, san diego

Stayed 1 night in Nov 2025

10/10 Excellent

Armando

Liked: Cleanliness, staff & service, amenities
Staff was friendly and helpful
Stayed 1 night in Nov 2025