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Inn At Union Square

Property class: 3.5

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 dining area with a long table and chairs, a kitchen counter with breakfast items, and geometric pendant lighting.
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 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$317
includes taxes & fees
18 Sept - 19 Sept

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

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

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

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
(131 reviews)
  • Sleeps 2
  • 1 Queen Bed

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

9.6 out of 10
Exceptional
(14 reviews)
  • Sleeps 2
  • 1 King Bed

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

View all photos for Superior King Room-Accessible

A hotel room with a large bed, two bedside tables with lamps, a headboard with artwork, and a patterned carpet.

Superior King Room-Accessible

  • Sleeps 2
  • 1 King Bed

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

View all photos for Superior Room, 1 King Bed

A hotel room with a large bed, two bedside tables, a nightstand, and three framed pictures on the wall.

Superior Room, 1 King Bed

  • Sleeps 2
  • 1 King Bed

View all photos for Superior Room, 1 Queen Bed

A hotel room with a large bed, two bedside tables, and three framed pictures on the wall.

Superior Room, 1 Queen Bed

  • Sleeps 2
  • 1 Queen Bed

View all photos for Superior Studio, 1 King Bed

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.

Superior Studio, 1 King Bed

  • Sleeps 2
  • 1 King Bed

View all photos for Superior Suite, 1 King Bed

A hotel room with a large bed, two bedside tables, a nightstand, and three framed pictures on the wall.

Superior Suite, 1 King Bed

  • Sleeps 2
  • 1 King Bed

View all photos for Superior Studio, 1 Queen Bed

A hotel room with a large bed, two bedside tables with lamps, a sofa, and a patterned carpet.

Superior Studio, 1 Queen Bed

  • Sleeps 2
  • 1 Queen Bed

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

  • Sleeps 2
  • 1 King Bed

View all photos for Suite (Spreckels)

A hotel room with a large bed, two bedside lamps, a desk with a laptop, and a chair.

Suite (Spreckels)

  • Sleeps 2
  • 1 King Bed

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About the area

San Francisco

Inn At Union Square places you steps from Union Square and within a 15-minute stroll of Moscone Convention Center. Highlights at this boutique hotel include free in-room WiFi. .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. .Within a 20-minute walk of this 3.5-property class Union Square hotel, attractions include San Francisco Museum of Modern Art and Embarcadero Center.

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
  • ‪Bluestone Lane - ‬3 min walk

About this property

Inn At Union Square

Inn At Union Square offers its guests a vending machine and a lift. WiFi is free in public spaces.

This 3.5-star San Francisco hotel is smoke free.

  • 1 building
  • 30 guestrooms or units
  • 6 levels
  • 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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  • Business services
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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

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 13 Sept 2026, prices found for a 1-night stay for 2 adults at Inn At Union Square on 18 Sept 2026 start from AU$317, 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.

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. 699 out of 1005 reviews
Rating 8 - Good. 195 out of 1005 reviews
Rating 6 - Okay. 61 out of 1005 reviews
Rating 4 - Poor. 24 out of 1005 reviews
Rating 2 - Terrible. 26 out of 1005 reviews

9.6/10

Cleanliness

9.4/10

Staff & service

8.6/10

Amenities

9.2/10

Property conditions & facilities

Reviews

Verified review

10/10 Excellent

MARLON

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Excellent stay
Stayed 3 nights in May 2026
Verified review

10/10 Excellent

suzanne

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
We were very pleased with the room, location and parking options.
Stayed 1 night in May 2026
Verified review

10/10 Excellent

Jana

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
So quaint and quiet. The location was superb!
Stayed 1 night in Jun 2026
Verified review

10/10 Excellent

Michel

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Beautiful hotel, rooms were clean, all staff was very friendly. Centrally located.
Stayed 2 nights in Jun 2026
Verified review

10/10 Excellent

Yvonne

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Clean and comfortable. Great for families
Stayed 7 nights in Jun 2026
Verified review

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 review

10/10 Excellent

Dell

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
It was a cute, quaint hotel. Very clean . Friendly staff.
Stayed 3 nights in Jun 2026
Verified review

10/10 Excellent

Raymond

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

10/10 Excellent

Mark

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Located just off Union Square, close to shopping and restaurants, comfortable, clean rooms with an accommodating staff.
Stayed 1 night in Feb 2026
Verified review

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 review

8/10 Good

Michael

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Rooms were quite spacious and the location is very convenient. Breakfast was tasty but don't be the last there if you want a good choice
Stayed 3 nights in May 2026
Verified review

10/10 Excellent

Alicia

Cute hidden gem in SF
Stayed 4 nights in May 2026
Verified review

10/10 Excellent

gabriella

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
A lovely boutique hotel. Older but authentic SF style. Room was comfortable and had a small sitting area with separate TV which was nice for coffee in the morning. The continental breakfast was quite good. Great location near Union Square - lots of shopping, food options within walking distance.
Stayed 3 nights in May 2026
Verified review

10/10 Excellent

stuart

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
CLEAN ROOM AND BREAKFAST WERE HIGHLIGHTS. EXCELLENT LOCATION AND ACCESS TO PUBLIC TRANSIT.
Stayed 2 nights in May 2026
Verified review

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 review

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 review

10/10 Excellent

Devyn

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Amazing place to stay in San Fran! In the center of everything and there’s public transportation super close by. The rooms were so comfortable and very quiet despite being downtown. We were even surprised with a room upgrade!
Stayed 3 nights in May 2026
Verified review

10/10 Excellent

Richard

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Clean, easy check in. Staff attentative and helpful. Great location across from union square.
Stayed 1 night in May 2026
Verified review

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 review

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 review

10/10 Excellent

Elizabeth

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
The staff was really great -- super responsive and friendly. The room was lovely and comfortable.
Stayed 3 nights in Apr 2026
Verified review

10/10 Excellent

Tatsuyoshi

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

6/10 Okay

Kevin

Liked: Cleanliness, staff & service
Disliked: Property conditions & facilities
Nice and friendly staff but rooms need to be refreshed, and continental breakfast is definitely not the best we ever tried.
Stayed 4 nights in May 2026
Verified review

10/10 Excellent

Tony

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

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