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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
Exterior
Meeting facility
32-inch flat-screen TV with cable channels, TV
Reception

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, SF Masonic Auditorium
    ‪5 min walk‬
  • Place, Moscone Convention Center
    ‪11 min walk‬
  • Airport, San Francisco, CA (SFO-San Francisco Intl.)
    ‪22 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
  • Free WiFi

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
(123 reviews)
  • Sleeps 2
  • 1 Queen Bed
  • Free WiFi

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
(13 reviews)
  • Sleeps 2
  • 1 King Bed
  • Free WiFi

View all photos for Superior Suite, 1 King Bed

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

Superior Suite, 1 King Bed

9.2 out of 10
Wonderful
(13 reviews)
  • Sleeps 2
  • 1 King Bed
  • Free WiFi

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
  • Free WiFi

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

Superior Room, 1 King Bed, Accessible | Premium bedding, pillowtop beds, in-room safe, desk

Superior Room, 1 King Bed, Accessible

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

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
  • Free WiFi

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About the neighborhood

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 miles
  • SF Masonic Auditorium - 5 min walk - 0.3 miles
  • Palace Hotel - 8 min walk - 0.5 miles
  • San Francisco Museum of Modern Art - 10 min walk - 0.5 miles
  • Moscone Convention Center - 11 min walk - 0.6 miles

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
  • ‪McDonald's - ‬3 min walk
  • ‪7-Eleven - ‬2 min walk
  • ‪Pacific Cocktail Haven - ‬3 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, and Discover. 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 May 6, 2026, prices found for a 1-night stay for 2 adults at Inn At Union Square on May 7, 2026 start from $177, including 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 San Pablo Lytton Casino (21-min drive) is 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. 723 out of 1010 reviews
Rating 8 - Good. 176 out of 1010 reviews
Rating 6 - Okay. 60 out of 1010 reviews
Rating 4 - Poor. 25 out of 1010 reviews
Rating 2 - Terrible. 26 out of 1010 reviews

9.6/10

Cleanliness

9.4/10

Staff & service

8.6/10

Amenities

9.0/10

Property conditions & facilities

Reviews

10/10 Excellent

Jadin

Stayed 2 nights in Apr 2026

10/10 Excellent

ERIC, Lincoln

Stayed 1 night in Jan 2026

10/10 Excellent

Maribeth

Liked: Cleanliness, staff & service, amenities
Stayed 2 nights in Jan 2026

10/10 Excellent

TOSHIKO

Stayed 1 night in Jan 2026

10/10 Excellent

Eacov

Stayed 1 night in Jan 2026

10/10 Excellent

Nancy, Austin

Liked: Cleanliness, amenities, property conditions & facilities
This little inn surprised me with a darling superior king with a nicely appointed front sitting room in addition to a hallway and a king bedroom on the back. Sitting room overlooks Post St with a functional window wall over the fire escape. Very welcoming and bright. TVs in each room. Bed is very comfortable. Lots of fluffy clean towels. No air-conditioning might be a problem August-October but otherwise not an issue. Ceiling fans in both rooms. Big plus is the unlimited filtered water available no cost. Wish they had coffee service in the lobby before 8 am. Rooms have little coffee makers but only powdered creamer. Shelf stable half and half pods would be a nice upgrade. Tiny complaint. This is a well-priced, perfectly located snuggly spot in the city. I’ll definitely return.
Stayed 6 nights in Jan 2026

10/10 Excellent

Ravi

Business traveler
Liked: Cleanliness, staff & service, amenities
Great hotel. Like the proximity, quality and the friendly staff
Stayed 5 nights in Jan 2026

10/10 Excellent

Deborah, Wellesley Hills

Stayed 3 nights in Jan 2026

10/10 Excellent

Daniel

Great environment, Quiet, Very organized and process was smooth
Stayed 1 night in Jan 2026

4/10 Poor

Meghan

Traveled with partner, Traveled with family
Disliked: Amenities
No view, uncomfortable bed, elevator broken
Stayed 4 nights in Dec 2025

8/10 Good

André

Traveled with partner
Liked: Cleanliness, amenities, property conditions & facilities
Chambre avec lit tré confortable. Personnel efficace et courtois Bon café du matin avec petit dejeuner simple, de bon goût.
Stayed 2 nights in Jan 2026

8/10 Good

Grace

Stayed 1 night in Jan 2026

8/10 Good

Aideen

Business traveler
Liked: Cleanliness, staff & service
Disliked: Amenities
Spacious, clean rooms. Centrally located
Stayed 4 nights in Jan 2026

10/10 Excellent

george

Stayed 1 night in Jan 2026

10/10 Excellent

Tony

Liked: Cleanliness, staff & service, amenities
Yes—great stay!
Stayed 1 night in Jan 2026

8/10 Good

Malinda

Stayed 1 night in Jan 2026

2/10 Terrible

TOSHIKO

Stayed 1 night in Jan 2026

10/10 Excellent

Ramesh Murthy, Plainsboro

Business traveler
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
The breakfast was fresh and good and internal amenities are very comfortable
Stayed 4 nights in Jan 2026

2/10 Terrible

Candace, Makawao

Business traveler
Liked: Amenities
Disliked: Cleanliness, property conditions & facilities
There wasn’t any fireplace in my room as advertised. The room was freezing I had to sleep in another guest room the first night. It wasn’t anything like I was led to believe!
Stayed 2 nights in Dec 2025

10/10 Excellent

Haley

Stayed 1 night in Jan 2026

10/10 Excellent

Jamese

Liked: Cleanliness, amenities, property conditions & facilities
Amazing!
Stayed 1 night in Nov 2025

8/10 Good

Lenny R., Odessa

Liked: Cleanliness, amenities, property conditions & facilities
The hotel had been renovated and professional stall.
Stayed 4 nights in Jan 2026

10/10 Excellent

Amber

Business traveler
Liked: Cleanliness, staff & service, amenities
Nice room great stay
Stayed 3 nights in Jan 2026

10/10 Excellent

Bonnie

Clean, quiet, and friendly staff
Stayed 2 nights in Dec 2025

8/10 Good

Kelvin

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Breakfast options were alright. Staff was amazing. Room smelled like old smoke sometimes, though.
Stayed 2 nights in Dec 2025