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Inn At Union Square

3.5 star property

Photo gallery for Inn At Union Square

A hotel room with a bed, two armchairs, a small table with a laptop and a glass of water, a lamp, a TV displaying a scenic image, and a large window with curtains.
A modern living room with a fireplace, a flat-screen TV mounted above it, a sofa with a cushion, and a floor lamp.
A living room with a fireplace, a clock, a sofa, and a lamp.
A modern dining area with a long table and chairs, a kitchen counter with breakfast items, and geometric pendant lighting.
A red sign for The Inn at Union Square, 440 Post Street, with a dark wooden door and green walls.

Reviews

9.2 out of 10
Wonderful

Popular amenities

  • Free Wi-Fi
  • Business services
  • Housekeeping
  • 24/7 front desk
The current price is AU$205
includes taxes & fees
22 Aug - 23 Aug

Explore the area

View 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.)
    ‪22 min drive‬

Room options

View all photos for Superior Queen Studio

A reception area with a red upholstered bench, a vase of flowers, and a wooden desk with apples and papers.

Superior Queen Studio

  • Sleeps 2
  • 1 Queen Bed
  • Free Wi-Fi

View all photos for Superior King Studio

A hotel room with a bed, nightstands, a ceiling fan, and framed pictures on the wall.

Superior King Studio

  • Sleeps 2
  • 1 King Bed
  • Free Wi-Fi

View all photos for Superior Room, 1 King Bed

A hotel room with a bed, two armchairs, a nightstand, a dresser, and framed artwork on the walls.

Superior Room, 1 King Bed

9.4 out of 10
Exceptional
(40 reviews)
  • Sleeps 2
  • 1 King Bed
  • Free Wi-Fi

View all photos for Superior Room, 1 Queen Bed

A hotel room with a bed, two armchairs, a nightstand, a dresser, and framed artwork on the walls.

Superior Room, 1 Queen Bed

9.2 out of 10
Wonderful
(128 reviews)
  • Sleeps 2
  • 1 Queen Bed
  • Free Wi-Fi

View all photos for Superior Studio, 1 King Bed

A hotel room with a bed, two armchairs, a nightstand, a dresser, and framed artwork on the walls.

Superior Studio, 1 King Bed

9.4 out of 10
Exceptional
(13 reviews)
  • Sleeps 2
  • 1 King Bed
  • Free Wi-Fi

View all photos for Superior Suite, 1 King Bed

A hotel room with a bed, two armchairs, a nightstand, a dresser, and framed artwork on the walls.

Superior Suite, 1 King Bed

9.2 out of 10
Wonderful
(14 reviews)
  • Sleeps 2
  • 1 King Bed
  • Free Wi-Fi

View all photos for Superior Studio, 1 Queen Bed

A hotel room with a bed, two armchairs, a nightstand, a dresser, and framed artwork on the walls.

Superior Studio, 1 Queen Bed

9.4 out of 10
Exceptional
(24 reviews)
  • Sleeps 2
  • 1 Queen Bed
  • Free Wi-Fi

View all photos for Superior King Room-Accessible

Premium bedding, pillow-top beds, in-room safe, desk

Superior King Room-Accessible

  • Sleeps 2
  • 1 King Bed
  • Free Wi-Fi

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

A large bed with white linens, two nightstands with lamps, and three framed pictures on the wall.

Superior Room, 1 King Bed, Accessible

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

View all photos for Suite (Spreckels)

A hotel room with a large bed, two bedside tables with lamps, a small side table, a decorative bowl, and a framed picture above the bed.

Suite (Spreckels)

10.0 out of 10
Exceptional
(4 reviews)
  • Sleeps 2
  • 1 King Bed
  • Free Wi-Fi

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About the area

San Francisco

Inn At Union Square places you steps from Union Square and within a 10-minute stroll of SF Masonic Auditorium. Highlights at this boutique hotel include free continental breakfast. .This smoke-free hotel offers free WiFi in public areas, a 24-hour front desk and a lift. Additionally, you'll find a banquet hall and a vending machine. Each morning free breakfast is served. .Within a 15-minute walk of this 3.5-property class Union Square hotel, attractions include Moscone Convention Center and Palace Hotel.

What's nearby

  • Union Square - 1 min walk - 0.1 km
  • 450 Sutter Building - 2 min walk - 0.2 km
  • Westin St Francis Hotel Glass Elevators - 2 min walk - 0.2 km
  • SF Masonic Auditorium - 5 min walk - 0.4 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 International 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

Free breakfast is available daily. WiFi is free in public spaces. The boutique Inn At Union Square also features a vending machine and a lift.

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)
  • Lift
  • 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 a shower, 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 telephones. Additionally, rooms include a hairdryer and an iron/ironing board. Hypo-allergenic bedding, change of towels and change of bedsheets can be requested. Housekeeping is provided on a daily basis.

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Property amenities

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

Family friendly

  • Mini-fridge

Conveniences

  • 24-hour front desk
  • Vending machine

Guest services

  • Change of bedsheets (on request)
  • Change of towels on request
  • Housekeeping (daily)
  • Proposal/romance packages

Business services

  • Meeting room

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
  • Grab bar in shower
  • Lift
  • Low-height bed
  • Wheelchair accessibility
  • Wheelchair accessible (may have limitations)
  • Wheelchair-accessible path of travel

More

  • 1 building
  • 6 floors
  • Banquet hall
  • Edwardian architecture
  • Smoking not allowed

Room amenities

Bedroom

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

Bathroom

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

Entertainment

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

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 and check-out are available
Late check-in subject to availability
Minimum check-in age - 18

Check-out

Check-out before 11:00 AM
Contactless check-out
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.
  • Cots (infant beds) are not available.

Payment types

Important information

Fees

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

  • Deposit: USD 200 per accommodation, per stay

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 guest room 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 all 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

What is the cancellation policy at Inn At Union Square?

Inn At Union Square offers free cancellation on select room rates. Check out the cancellation policy for more info.

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

As of 30 July 2026, prices found for a 1-night stay for 2 adults at Inn At Union Square on 22 Aug 2026 start from AU$205, 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.

Are there any beaches close to Inn At Union Square?

The closest beach to Inn At Union Square is Ocean Beach (9.4 km).

What makes Inn At Union Square a romantic place to stay?

Romance packages, plus pillowtop beds in the guestrooms, help set the scene for a romantic weekend at Inn At Union Square.

Does Inn At Union Square serve breakfast?

Yep, our travelers give high marks to the free continental breakfast here! Available daily from 8:00 AM to 11:00 AM, this is the perfect place to fuel up for a day of adventure.

Is there a free airport shuttle available at Inn At Union Square?

No, Inn At Union Square does not offer an airport shuttle service.

What time are check-in & check-out at Inn At Union Square?

Check-in begins at 4:00 PM. Check-out time is 11:00 AM.

Are pets allowed at Inn At Union Square?

No, only service animals are allowed.

Inn At Union Square Reviews

Reviews

9.2

Wonderful

Rating 10 - Excellent. 706 out of 1002 reviews
Rating 8 - Good. 186 out of 1002 reviews
Rating 6 - Okay. 59 out of 1002 reviews
Rating 4 - Poor. 25 out of 1002 reviews
Rating 2 - Terrible. 26 out of 1002 reviews

9.6/10

Cleanliness

9.4/10

Staff & service

8.6/10

Amenities

9.0/10

Property conditions & facilities

Reviews

Verified

10/10 Excellent

Daniel

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Great breakfast and very clean rooms
Stayed 3 nights in Mar 2026
Verified

10/10 Excellent

Nicole

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
I like my stay here. Convenient, they have nice selection for breakfast, staffs are nice.
Stayed 3 nights in Apr 2026
Verified

10/10 Excellent

Raymond

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Clean room, breakfast, location
Stayed 6 nights in Mar 2026
Verified

10/10 Excellent

GUILHERME

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Great place to stay. Clean and quiet, also very well located. Outstanding.
Stayed 3 nights in Apr 2026
Verified

10/10 Excellent

Carly

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Super cute place and really friendly/attentive staff!!
Stayed 1 night in Apr 2026
Verified

10/10 Excellent

Tatsuyoshi

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Everything was great!
Stayed 3 nights in Apr 2026
Verified

10/10 Excellent

John

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
We were very happy with our stay.
Stayed 2 nights in Feb 2026
Verified

10/10 Excellent

Gina

Liked: Cleanliness, amenities, property conditions & facilities
Great location, helpful & friendly staff, clean & comfortable rooms, & nice breakfast options
Stayed 3 nights in Feb 2026
Verified

10/10 Excellent

Jacquelyn

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
The cutest room with a bedroom and living room! And the free breakfast was right next door to my room 😍
Stayed 3 nights in Apr 2026
Verified

10/10 Excellent

Kazuhiro

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
I felt the hotel is always maintaining clean room
Stayed 2 nights in Apr 2026
Verified

10/10 Excellent

Tony

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

10/10 Excellent

Jessica

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Great location, well designed and maintained. Highly recommended!
Stayed 3 nights in Mar 2026
Verified

10/10 Excellent

Cindy

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

10/10 Excellent

Robert

Liked: Cleanliness, property conditions & facilities
Great value, clean cozy rooms right off Union square near everything
Stayed 4 nights in Feb 2026
Verified

10/10 Excellent

Hiroko

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
The hotel staff were very kind. They provided breakfast and drinking water, which was very convenient. The location was also great, convenient for getting anywhere, and I would love to use this hotel again.
Stayed 3 nights in Mar 2026
Verified

10/10 Excellent

Amber

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

10/10 Excellent

Ravi

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

8/10 Good

John

Liked: Cleanliness, staff & service, amenities
Spacious room/suite albeit sparsely furnished. Comfortable bed and shower. Entire property would benefit from a refresh.
Stayed 5 nights in Apr 2026
Verified

10/10 Excellent

Joe

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
I love staying here. Parking around the corner, restaurants nearby lots of stuff within waking distance. Comedy show and even theater nearby.
Stayed 1 night in Feb 2026
Verified

10/10 Excellent

Stephen

Liked: Cleanliness, staff & service, amenities
Nice breakfast and room was very nice. The elevator and some other things are worn. It's an old hotel, after all. But a good value.
Stayed 4 nights in Apr 2026
Verified

10/10 Excellent

John

Liked: Cleanliness, amenities, property conditions & facilities
Everything was fantastic! King suite was lovely. Great location and staff super friendly. You won’t be disappointed when selecting this property!
Stayed 3 nights in Feb 2026
Verified

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
Verified

10/10 Excellent

Ramesh Murthy

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
Verified

10/10 Excellent

Akiko

Liked: Cleanliness, staff & service, property conditions & facilities
The location is perfect so close to all the transportation and stores and coffee shops. Very clean room, staff were friendly and helpful. We stayed in a suite. The air condition worked great and the bedroom was located inside not facing street so was quiet. Free continental breakfast downstairs also was a nice service. We had a very comfortable stay.
Stayed 5 nights in Mar 2026
Verified

10/10 Excellent

David

Liked: Cleanliness, staff & service, amenities
Staff was nice, Beautiful room.
Stayed 2 nights in Dec 2025