Inn At Union Square

Property class: 3.5
VIP Access

Choose dates to view prices

Photo gallery for Inn At Union Square

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

Reviews

9.2 out of 10
Wonderful

Popular amenities

  • Free Wi-Fi
  • 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
VIP Access
Curated for quality and service, VIP Access stays consistently receive our highest guest ratings.
  • Expect exceptional service
  • Extra savings and perks for BONUS+ members

Room options

Superior Room, 1 King Bed

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

Superior Room, 1 Queen Bed

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

Superior Studio, 1 King Bed

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

Superior Suite, 1 King Bed

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

Superior Studio, 1 Queen Bed

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

Superior Room, 1 King Bed, Accessible

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

Suite (Spreckels)

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

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About this property

Inn At Union Square

This smoke-free hotel features a meeting room, a 24-hour front desk and free breakfast. WiFi in public areas is free. Other amenities include a banquet hall and a vending machine. Change of towels is available on request
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.

The recreational activities listed below are available either on-site or nearby; fees may apply.
The free breakfast at Inn At Union Square gets good marks from our customers. During your stay, you're just a quick walk from Union Square. Features include free WiFi in public areas and a meeting room.
  • Free continental breakfast served daily
  • Free Wi-Fi (speed: 100+ Mbps (good for 1–2 people or up to 6 devices))
  • Amenities include a meeting room, a lift and a vending machine
  • Guests really like the accommodation for the comfy beds, cleanliness and overall comfort
  • Steps from Union Square and 13 minutes on foot from 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 a lift.

This 3.5-star San Francisco hotel is smoke free.

Guests are served a free continental breakfast daily from 8:00 AM to 11:00 AM.

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

  • 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 at the property

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

This property is managed by a professional host. The provision of housing is linked to their trade, business or profession.
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
Guests arriving after noon must make advance arrangements by contacting the property using the information on the booking confirmation. Front desk staff will greet guests on arrival at the 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

Inn At Union Square Reviews

Reviews

9.2

Wonderful

Rating 10 - Excellent. 715 out of 1000 reviews
Rating 8 - Good. 174 out of 1000 reviews
Rating 6 - Okay. 60 out of 1000 reviews
Rating 4 - Poor. 25 out of 1000 reviews
Rating 2 - Terrible. 26 out of 1000 reviews

9.6/10

Cleanliness

9.4/10

Staff & service

8.6/10

Amenities

9.0/10

Property conditions & facilities

Reviews

10/10 Excellent

Daniel

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

4/10 Poor

Meghan

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

8/10 Good

André

Travelled 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

Charmaine Louise

Liked: Cleanliness, amenities, property conditions & facilities
Its ok
Stayed 3 nights in Jan 2026

8/10 Good

Grace

Stayed 1 night in Jan 2026

8/10 Good

Aideen

Business traveller
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 traveller
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 traveller
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 traveller
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

10/10 Excellent

Thomas

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Good continental breakfast. Room was comfortable and clean.
Stayed 1 night in Jan 2026

10/10 Excellent

David

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

10/10 Excellent

Manuel JR

Stayed 2 nights in Jan 2026

10/10 Excellent

Verleht Gail A, Woodside

Travelled with partner
Liked: Cleanliness, amenities, property conditions & facilities
Location 5/5 We always come back with a clean room 5/5 the only ick was the amenity fee of $25/day..no biggie if we were informed upon booking,but nevertheless we love the property.Will surely recommend
Stayed 5 nights in Dec 2025

6/10 Okay

christine

Travelled with family
Staff was helpful. Unfortunately the elevator was not working until our last day. My 2 suggestions-: 1. a larger breakfast room. (each of our 6 mornings could not accomodate seats at the table for all who entered during the first hour). 2. Removing the "air freshener" plug in devices in lobby and floors. They can and did cause nausea and headaches for those of us with fragrance sensitivities.
Stayed 6 nights in Nov 2025

8/10 Good

Simone

Travelled with partner
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

Andrea

Liked: Cleanliness, property conditions & facilities
Lovely place! Clean and tidy, very nice housekeepers :)
Stayed 1 night in Nov 2025