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8.5 / 10 Guest Rating

JW Marriott San Francisco Union Square

515 Mason Street, San Francisco, us

JW Marriott San Francisco Union Square - main view

About the Property

Luxurious Accommodations
Indulge in the chic and modern furnishings of our air-conditioned rooms at JW Marriott San Francisco Union Square. Enjoy premium film channels on a large LDC TV, relax in a marble bathroom with plush guest robes, and savor a freshly brewed coffee from your in-room machine.

Dining and Entertainment
Satisfy your cravings at Level III Restaurant with a delightful array of local and international cuisines. Unwind at Level III Bar with handcrafted cocktails, snacks, and a diverse selection of Northern California wines.

Convenient Location and Amenities
Explore nearby attractions like Fisherman’s Wharf, Oracle Park, Chinatown, and Ghirardelli Square, all just minutes away. Stay active at our modern fitness center or seek assistance from our attentive 24-hour front desk staff.

Book your stay at JW Marriott San Francisco Union Square for an unforgettable experience in the heart of the city.

Facilities & Amenities

Fitness facilities
WiFi available
Parking
Non-smoking rooms
Air conditioning
Fitness center
24-hour front desk
Restaurant
Room service
Heating

Important Information

Check-in & Out

Check-in
Check-out12:00 PM

Property Notes

Please note: There is an extra parking charge for over-sized vehicles. Please contact the hotel for further details. Please note: There is an electric car charging station available on the property. Please Note: The breakfast package is only for two adults (max value $30 per person or $60 for 2 adults).Guests are required to show a photo ID and credit card upon check-in. Please note that all Special Requests are subject to availability and additional charges may apply. In the event of an early departure, the property will charge you the full amount for your stay. A deposit may be required at the property.

Check Room Availability

1 night · 2 adults

Available Rooms

King Room - Photo 1
King Room - Photo 2
King Room - Photo 3
King Room - Photo 4
King Room - Photo 5
King Room - Photo 6
King Room - Photo 7
1/7

King Room

This room features a large LDC TV with premium film channels, a work desk with an ergonomic chair and a coffee machine. It includes an in-room safe, a marble bathroom and guest robes.

33 sqm
Sleeps 3
1 Extra-large double bed (Super-king size) (181-210 cm wide)
Amenities
Coffee/tea makerMinibarShowerSafety deposit boxTVTelephone

King Room

Non-refundable
Room Only
20% OFF$370.08

$296.06

Includes taxes & fees

King Room

Non-refundable
Breakfast Included
20% OFF$485.49

$388.39

Includes taxes & fees
King Bed with City View - Photo 1
King Bed with City View - Photo 2
King Bed with City View - Photo 3
King Bed with City View - Photo 4
King Bed with City View - Photo 5
King Bed with City View - Photo 6
King Bed with City View - Photo 7
King Bed with City View - Photo 8
King Bed with City View - Photo 9
1/9

King Bed with City View

Showcasing city views, this room features a large LDC TV with premium film channels, a work desk with an ergonomic chair and a coffee machine. It includes an in-room safe, a marble bathroom and guest robes.

33 sqm
Sleeps 3
1 Extra-large double bed (Super-king size) (181-210 cm wide)
Amenities
Coffee/tea makerMinibarShowerSafety deposit boxTVTelephone

King Room City view

Non-refundable
Room Only
20% OFF$395.33

$316.26

Includes taxes & fees

King Room City view

Non-refundable
Breakfast Included
20% OFF$512.04

$409.63

Includes taxes & fees
Studio Suite - Photo 1
Studio Suite - Photo 2
Studio Suite - Photo 3
Studio Suite - Photo 4
Studio Suite - Photo 5
Studio Suite - Photo 6
1/6

Studio Suite

Featuring a San Francisco city view, this suite offers a 55-inch LCD TV, a desk with an ergonomic chair and an in-room safe. It includes a marble bathroom with guest bathrobes.

43 sqm
Sleeps 4
1 Extra-large double bed (Super-king size) (181-210 cm wide)
1 Sofa bed (Variable Size)
Amenities
Coffee/tea makerMinibarShowerSafety deposit boxTVTelephone

Studio Suite with Sofa Bed

Non-refundable
Room Only
20% OFF$489.88

$391.9

Includes taxes & fees

Studio Suite with Sofa Bed

Non-refundable
Breakfast Included
20% OFF$611.58

$489.26

Includes taxes & fees
Queen Room with Two Queen Beds - Photo 1
Queen Room with Two Queen Beds - Photo 2
Queen Room with Two Queen Beds - Photo 3
Queen Room with Two Queen Beds - Photo 4
Queen Room with Two Queen Beds - Photo 5
Queen Room with Two Queen Beds - Photo 6
Queen Room with Two Queen Beds - Photo 7
1/7

Queen Room with Two Queen Beds

This room features a large LDC TV with premium film channels, a work desk with an ergonomic chair and a coffee machine. It includes an in-room safe, a marble bathroom and guest robes.

33 sqm
Sleeps 4
2 Queen bed (151-180 cm wide)
Amenities
Coffee/tea makerMinibarShowerSafety deposit boxTVTelephone

Griffin Two Queen Room

Non-refundable
Room Only
20% OFF$370.08

$296.06

Includes taxes & fees

Griffin Two Queen Room

Non-refundable
Breakfast Included
20% OFF$485.49

$388.39

Includes taxes & fees
Guest Room with Two Queen Beds and City View - Photo 1
Guest Room with Two Queen Beds and City View - Photo 2
Guest Room with Two Queen Beds and City View - Photo 3
Guest Room with Two Queen Beds and City View - Photo 4
Guest Room with Two Queen Beds and City View - Photo 5
Guest Room with Two Queen Beds and City View - Photo 6
Guest Room with Two Queen Beds and City View - Photo 7
Guest Room with Two Queen Beds and City View - Photo 8
Guest Room with Two Queen Beds and City View - Photo 9
1/9

Guest Room with Two Queen Beds and City View

This room features a large LDC TV with premium film channels, a work desk with an ergonomic chair and a coffee machine. It includes an in-room safe, a marble bathroom and guest robes.

33 sqm
Sleeps 4
1 Extra-large double bed (Super-king size) (181-210 cm wide)
Amenities
Coffee/tea makerMinibarShowerSafety deposit boxTVTelephone

Two Queen Room with City View

Non-refundable
Room Only
20% OFF$395.33

$316.26

Includes taxes & fees

Two Queen Room with City View

Non-refundable
Breakfast Included
20% OFF$512.04

$409.63

Includes taxes & fees
Executive King Room - Photo 1
Executive King Room - Photo 2
Executive King Room - Photo 3
Executive King Room - Photo 4
Executive King Room - Photo 5
1/5

Executive King Room

This spacious executive room features a 55-inch LDC TV with premium film channels, a work desk with an ergonomic chair and a coffee machine. It includes an in-room safe, a marble bathroom and guest robes.

43 sqm
Sleeps 3
1 Extra-large double bed (Super-king size) (181-210 cm wide)
Amenities
Coffee/tea makerMinibarShowerSafety deposit boxTVTelephone

Executive King Room

Non-refundable
Room Only
20% OFF$439.45

$351.56

Includes taxes & fees

Executive King Room

Non-refundable
Breakfast Included
20% OFF$558.49

$446.79

Includes taxes & fees
King Room - Hearing Accessible - Photo 1
King Room - Hearing Accessible - Photo 2
King Room - Hearing Accessible - Photo 3
King Room - Hearing Accessible - Photo 4
King Room - Hearing Accessible - Photo 5
King Room - Hearing Accessible - Photo 6
King Room - Hearing Accessible - Photo 7
King Room - Hearing Accessible - Photo 8
King Room - Hearing Accessible - Photo 9
King Room - Hearing Accessible - Photo 10
1/10

King Room - Hearing Accessible

This double room features air conditioning, a tea and coffee maker and a flat-screen TV. The unit offers 1 bed.

33 sqm
Sleeps 3
1 Extra-large double bed (Super-king size) (181-210 cm wide)
Amenities
Coffee/tea makerShowerTVTelephoneAir conditioningHair dryer

King Room - Hearing Accessible

Non-refundable
Room Only
20% OFF$428.47

$342.78

Includes taxes & fees

Guest Reviews

8.5
Excellent330 verified reviews
AI Summary

Guests highly rate the great location and frequently praise the friendly staff.

Categories

Cleanliness8.1
Service9.6
Location9.6
Room Quality8.5
Amenities8.1
Value for Money8.0
Food and Beverage7.1
Overall Experience9.1

Select topics to read reviews

D
Daishawn Nathaniel
Verified booking
Standard Room
Stayed in May 26, 2025

"Exceptional"

10.0

The property was amazing and the staff there was incredible. I lost my phone in my car and the valet staff turned over every stone to assist. And all with a smile too!

Helpful?
J
Jeri
Verified booking
family
Standard Room
Stayed in May 26, 2025

"Good"

4.0

The property was beautiful. The room was clean. We were put in a room right next to the gym and constantly heard weights banging, especially EARLY in the morning. I told the front desk and they didn’t seem to care.

Helpful?
B
benjaminbuttonnusUS
Verified booking
Business
Standard Room
Stayed in May 16, 2025

"A Disappointing Stay"

2.0

Honestly, this might be the most disappointing JW Marriott I’ve ever stayed at. Here’s why: Check-in was a mess. Got there at 8 PM, a line of tired people, and only one person working the front desk. Come on. Elevators take forever. More than once, I waited 10+ minutes just to go up or down. Not great when you’re in a hurry. My key cards just… didn’t work. Went down three times to get new ones, and the front desk lady looked more annoyed each time. Turns out, the lock itself was broken. Maintenance "fixed" it, but guess what? Stopped working again the next day. BTW did I mention the slow elevators? Breakfast for elites? Bare minimum. Yeah, it’s technically their policy, but the regular Marriott down the street gives elites hot breakfast. This one? Sad pastries and cereal. Lame. Desk in the room is a joke. Just a high bar table with stools—zero back support, terrible for working. If you’re here for business, good luck. Bottom line: Expected way better from a JW. Wouldn’t stay again

Helpful?
G
GreciausUS
Verified booking
family with young children
Standard Room
Stayed in May 15, 2025

"Exceptional"

10.0
Helpful?
M
MarisausUS
Verified booking
young couple
Standard Room
Stayed in May 6, 2025

"Exceptional"

10.0
Helpful?
G
GregoryusUS
Verified booking
young couple
Standard Room
Stayed in May 5, 2025

"Our Monthly get away"

10.0

The Greeting crew are fantastic Especially ( Norvin ) He remembered both my wife and my name's from the last visit over 2 years ago, We booked a room with a view, But the view was building tops So Norvin arranged it and moved us from the 8th floor to the 15th floor which had a fantastic view, They always go above and beyond... Great location, Great food, Great employees, Great rooms, Hands down a Great place to stay ... We be back ... Thank you JW Marriott Greg and Cindy Moe

Not much, Only thing was Ice machine was on 3rd floor but other than that ... It's all good

Helpful?
A
audreyc222usUS
Verified booking
Business
Standard Room
Stayed in May 2, 2025

"Great for Business Travelers as well as Couples"

8.0

Along with my mom and daughter, I stayed at this JW Marriott property for a half work/half spring break week. The hotel is a smaller property, but comfortable, and felt like a safe refuge from the city activity outside. My experience with the front desk was great. Notable shout outs go to Anthony and Jake, who helped me on separate days when the coffee ran out earlier than the 8:30 a.m. end time. They were both so accommodating, and delivered really stellar customer service, which I was grateful for. The room was comfortable and roomy - we all slept well in the beds. I loved that the closet/storage area was a little separate from the sleeping area, lending to a more spacious feel. The gym was great - I loved starting my mornings there at 6 a.m. with the other early risers. All the equipment was state of the art and modern, and it appeared that staff would come around regularly to wipe it all down. We didn't dine at the restaurant, but there were always a good number of people eating there or at the bar. One morning, I went down to the restaurant to order a steamed milk, and the kindest server greeted and helped me. She was SO sweet and kind, I am kicking myself for not remembering her name. It started with a B, and was "Bizen" or "Bison." If management happens to read this and knows who I'm referring to, please recognize this amazing lady. The hotel does not have a pool, so that may be something to note for families with young kids. It's walking distance from a bunch of great restaurants, and you really can't beat the location. Docking one star because $80/day for valet parking just feels incredibly wrong. Otherwise we loved our stay here.

Helpful?
A
AleksslvLV
Verified booking
review category business travellers
Standard Room
Stayed in Apr 28, 2025

"Exceptional"

10.0
Helpful?
M
Michael
Verified booking
Standard Room
Stayed in Apr 27, 2025

"Exceptional"

10.0

All good just o eight

Helpful?
T
TeresacaCA
Verified booking
solo traveller
Standard Room
Stayed in Apr 25, 2025

"Superb"

9.0
Helpful?