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Inn At Union Square

3.5 star property
This central San Francisco hotel is steps from top attractions with a 24-hour front desk team ensuring a seamless, comfortable visit.

Choose dates to view prices

The Inn At Union Square places travelers in San Francisco's vibrant heart near Moscone Convention Center. The hotel offers continental breakfast and in-room WiFi. Guests praise the central location and attentive staff for enhancing their experience.

Reviews

9.2 out of 10
Wonderful

Popular amenities

  • Free Wi-Fi
  • Business services
  • Housekeeping
  • 24/7 front desk
The current price is ฿3,299
฿4,679 total
includes taxes & fees
30 Mar - 31 Mar

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Room options

Available filters for rooms
Showing 7 of 7 rooms

View all photos for Superior Room, 1 King Bed

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

Superior Room, 1 King Bed

9.4 out of 10
Exceptional
(38 reviews)

Highlights

Mini-fridge
Flat-screen TV
Hypo-allergenic bedding
Premium bedding
Pillow-top bed
Blackout curtains
Bathrobes
Designer toiletries
  • Sleeps 2
  • 1 King Bed

View all photos for Superior Room, 1 Queen Bed

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

Superior Room, 1 Queen Bed

9.2 out of 10
Wonderful
(122 reviews)

Highlights

Mini-fridge
Flat-screen TV
Hypo-allergenic bedding
Premium bedding
Pillow-top bed
Blackout curtains
Bathrobes
Designer toiletries
  • Sleeps 2
  • 1 Queen Bed

View all photos for Superior Studio, 1 King Bed

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

Superior Studio, 1 King Bed

9.4 out of 10
Exceptional
(12 reviews)

Highlights

Mini-fridge
Flat-screen TV
Hypo-allergenic bedding
Premium bedding
Pillow-top bed
Blackout curtains
Bathrobes
Designer toiletries
  • Sleeps 2
  • 1 King Bed

View all photos for Superior Suite, 1 King Bed

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

Superior Suite, 1 King Bed

9.8 out of 10
Exceptional
(12 reviews)

Highlights

Mini-fridge
Flat-screen TV
Hypo-allergenic bedding
Premium bedding
Pillow-top bed
Blackout curtains
Bathrobes
Designer toiletries
  • Sleeps 2
  • 1 King Bed

View all photos for Superior Studio, 1 Queen Bed

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

Superior Studio, 1 Queen Bed

9.4 out of 10
Exceptional
(23 reviews)

Highlights

Mini-fridge
Flat-screen TV
Hypo-allergenic bedding
Premium bedding
Pillow-top bed
Blackout curtains
Bathrobes
Designer toiletries
  • Sleeps 2
  • 1 Queen Bed

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

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

Superior Room, 1 King Bed, Accessible

9.4 out of 10
Exceptional
(12 reviews)

Highlights

Mini-fridge
Flat-screen TV
Hypo-allergenic bedding
Premium bedding
Pillow-top bed
Blackout curtains
Bathrobes
Designer toiletries
  • Sleeps 2
  • 1 King Bed

View all photos for Suite (Spreckels)

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

Suite (Spreckels)

10.0 out of 10
Exceptional
(4 reviews)

Highlights

Fireplace
Mini-fridge
Flat-screen TV
Hypo-allergenic bedding
Premium bedding
Pillow-top bed
Blackout curtains
Bathrobes
  • Sleeps 2
  • 1 King Bed

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฿8,930 total
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About the area

In the entertainment district, Inn At Union Square is in Union Square, a walkable area in San Francisco with good shopping. Ferry Building and Golden Gate Bridge are notable landmarks, and the area's natural beauty can be seen at Golden Gate Park and San Francisco Bay. Looking to enjoy an event or a game? See what's going on at Oracle Park or Chase Center. Guests love the hotel's central location. Visit our San Francisco travel guide
Map
440 Post St, San Francisco, CA, 94102

What's nearby

  • Union Square, San Francisco
    Union Square
    1 min walk - 0.1 km
  • San Francisco: il California Masonic Memorial Temple il 13 giugno 2010. Icona dell'architettura modernista di metà secolo, il tempio massonico California Memorial è stato progettato da Albert Roller
    SF Masonic Auditorium
    5 min walk - 0.4 km
  • San Francisco Museum of Modern Art featuring a city
    San Francisco Museum of Modern Art
    10 min walk - 0.8 km
  • San Francisco
    Moscone Convention Center
    11 min walk - 1.0 km
  • Westin St Francis Hotel Glass Elevators
    2 min walk - 0.2 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
  • 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

Boutique hotel near Moscone Convention Center
Close to Union Square and San Francisco Museum of Modern Art, Inn At Union Square provides amenities such as free continental breakfast. Stay connected with free in-room WiFi.
You'll also find perks such as:
  • A lift, a banquet hall and a vending machine
  • A 24-hour front desk, 1 meeting room and smoke-free property
  • Guest reviews speak highly of the central location and helpful staff
Room features
All guest rooms at Inn At Union Square have comforts, such as premium bedding and laptop-compatible safes, in addition to amenities, such as free WiFi and bathrobes. Guest reviews highly rate the cleanliness, overall comfort rooms at the property.
More conveniences in all rooms include:
  • Hypo-allergenic bedding and pillowtop mattresses
  • Bathrooms with designer toiletries and showers
  • 32-inch flat-screen TVs with premium channels
  • Mini fridges, coffee/tea makers and daily housekeeping

Similar properties

Lobby sitting area
Chancellor Hotel on Union Square
  • Free Wi-Fi
  • Business services
  • Bar
  • Laundry room
9.4 out of 10, Exceptional, 3,224 reviews
The price is ฿2,971
฿3,506 total
includes taxes & fees
15 Mar - 16 Mar
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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
  • Smoke-free property

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

Pets not allowed (service animals are welcome, and are exempt from fees)

Children and extra beds

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

Payment types at the property

Important information

Fees

You'll be asked to pay the following charges at the property. Fees may include applicable taxes:

  • 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 have included all charges provided to us by the property.

Optional extras

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

The above list may not be comprehensive. Fees and deposits may not include tax and are subject to change.

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

We should mention

A car is not required for transport to and from this property

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

Is Inn At Union Square pet-friendly?

No, only service animals are welcome at the property.

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

As of 9 Mar 2026, prices found for a 1-night stay for 2 adults at Inn At Union Square on 30 Mar 2026 start from ฿3,299, 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.

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 (subject to availability). Late check-in is available during limited hours.

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

Checkout is at 11:00 AM. Late check-out is available for a fee (subject to availability).

Where is Inn At Union Square located?

Located in Union Square, this boutique hotel is within a 15-minute walk of Union Square, Moscone Convention Center and San Francisco Museum of Modern Art. Oracle Park and Pier 39 are also within 2 miles (3 km). Powell St & Post St Stop and Powell St & Geary Blvd Stop are within a 2-minute walk.

Can I cancel my reservation for free and receive a full refund?

Yes, this property offers free cancellation on selected room rates because flexibility matters! Please refer to the property cancellation policy on our site for more details about any exclusions or requirements.

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Reviews

Inn At Union Square Reviews

9.2

Wonderful

9.6

Cleanliness

8.6

Amenities

9.4

Staff & service

9.2

Property conditions & facilities
Rating 10 - Excellent. 726 out of 1010 reviews
Rating 8 - Good. 180 out of 1010 reviews
Rating 6 - Okay. 58 out of 1010 reviews
Rating 4 - Poor. 19 out of 1010 reviews
Rating 2 - Terrible. 27 out of 1010 reviews

Reviews

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

10/10 Excellent

Bonnie

Clean, quiet, and friendly staff
Stayed 2 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

8/10 Good

Simone

Liked: Cleanliness, amenities, property conditions & facilities
It's well located , quiet and clean, with friendly and helpful staff
Stayed 7 nights in Dec 2025

10/10 Excellent

robert

Liked: Cleanliness, property conditions & facilities
Everything was perfect location staff room and that continental breakfast was delicious Thankyou
Stayed 3 nights in Dec 2025

10/10 Excellent

Natalie

Clean room, welcoming staff, we would stay again.
Stayed 1 night in Nov 2025

10/10 Excellent

Sharlet

Liked: Cleanliness, staff & service, property conditions & facilities
Good sized room, we had a suite. Excellent friendly staff. Rooms clean and its location right on Union a square was excellent. Very happy and would book again.
Stayed 3 nights in Dec 2025

10/10 Excellent

John

Liked: Cleanliness, amenities, property conditions & facilities
Lovely Inn! We will stay here next visit. Grateful to see this historic building preserved!
Stayed 2 nights in Nov 2025

8/10 Good

Leia

Liked: Cleanliness
Everything was great from the service to the cleanliness. Only complaint was the breakfast options.
Stayed 3 nights in Dec 2025

10/10 Excellent

Catherine

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Clean room, friendly staff, great location
Stayed 1 night in Oct 2025

10/10 Excellent

carrie

Liked: Cleanliness, amenities, property conditions & facilities
Spacious room, friendly staff and perfectly situated steps away from Union Square. I would definitely stay here again!
Stayed 3 nights in Oct 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

10/10 Excellent

Leonard Anthony

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Very nice room and location
Stayed 3 nights in Oct 2025

10/10 Excellent

Sarah

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

Calvin

Liked: Cleanliness, amenities, property conditions & facilities
It was everything really. The staff, the room the ambiance, the location. Even the breakfast was good. The room was very clean and comfortable and up to date. Enjoyable stay, thanks.
Stayed 1 night in Dec 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

10/10 Excellent

Will

Liked: Cleanliness, staff & service, property conditions & facilities
Having a sitting room separate from the bedroom was nice.
Stayed 2 nights in Dec 2025

10/10 Excellent

Lilia

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Very friendly staff. Good location
Stayed 2 nights in Nov 2025

8/10 Good

Thomas Michael

Liked: Cleanliness
Very nice and helpful staff. Low water pressure. Great location, very clean..
Stayed 2 nights in Dec 2025

10/10 Excellent

Brent

Liked: Cleanliness, property conditions & facilities
The room was lovely and it had such an old time elegant feel to it! Great location! Beautiful amenities, great continental breakfast and all of the people were very nice and kind!
Stayed 6 nights in Nov 2025

10/10 Excellent

William

Housekeeper very friendly, clean and new room bedding room close to dining and shopping
Stayed 4 nights in Nov 2025

10/10 Excellent

Adrian

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

Ruth

Liked: Cleanliness, staff & service, amenities
Clean, upgraded rooms, nice bed, serene decor, good blackout curtains- everything worked and helpful staff.
Stayed 1 night in Nov 2025

8/10 Good

Brenen

Liked: Cleanliness
I think the room service was by far the best ive ever had. The bedding was incredible as well. There was a 25$ service charge for amenities which were ok but the breakfast wasn't worth 25$ in my mind. I would think that if i do pay 25$ i would recieve a better breakfast and a smart tv with just netflix or some other streaming service. Other than that, the shower was nice, and room was clean. Do keep in mind the walls are thin so people can hear most conversations if outside in the hall, unless you speak in whispers
Stayed 3 nights in Feb 2026