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JW Marriott San Francisco Union Square

515 Mason Street, San Francisco, CA, US
4.0Very Good
Hotel amenities
Gym
Laundry
Non-Smoking
Parking
Lounge

See what's available

Pick your check-in and check-out dates to view rooms and rates.

About this property

JW Marriott San Francisco Union Square is a 4.5-star Marriott property located in the heart of San Francisco, just a 2-minute walk from Union Square. The hotel comprises 344 guestrooms designed for comfort and convenience, making it an ideal base for both leisure and business travelers exploring the city.

Each guestroom features a pillowtop bed with down comforters and premium bedding, along with a 55-inch flat-screen television offering premium channels. Smart televisions and wired and wireless internet access (available for a surcharge) provide in-room entertainment and connectivity. Bathrooms include showers stocked with designer toiletries and hair dryers. Guest comfort ratings average 4.4 out of 5 stars.

Dining options include Level III Restaurant, which serves Californian cuisine and operates a bar and lounge. Room service is also available during limited hours for guests preferring to dine in their rooms.

The property offers a 24-hour fitness center for guests maintaining their wellness routines. A terrace and garden provide outdoor spaces to relax and take in views of the surrounding area. Additional amenities include complimentary wireless internet access, a gift shop and newsstand, and a hair salon. The property features conference space totaling 4,352 square feet across 15 meeting rooms, making it suitable for events and gatherings.

JW Marriott San Francisco Union Square sits centrally in San Francisco, positioned 0.7 miles from the San Francisco Museum of Modern Art and 1.6 miles from Oracle Park. The hotel is a 15-minute walk from Moscone Convention Center. Guest location ratings reflect strong satisfaction at 5 out of 5 stars, with an overall property rating of 4.4 out of 5 across more than 1,000 reviews.

Check-in is available from 4:00 PM to midnight, with check-out at 11:00 AM. The hotel is pet-friendly, welcoming pets up to 25 pounds. Service animals are allowed and exempt from pet fees. The property offers valet parking for an additional charge and features an electric car charging station for guest convenience.

Location & nearby attractions

With a stay at JW Marriott San Francisco Union Square, you'll be centrally located in San Francisco, just a 2-minute walk from Union Square and 15 minutes by foot from Moscone Convention Center. This luxury hotel is 0.7 mi (1.1 km) from San Francisco Museum of Modern Art and 1.6 mi (2.5 km) from Oracle Park.
Distances are displayed to the nearest 0.1 mile and kilometer.

Union Square - 0.2 km / 0.1 mi
Westin St Francis Hotel Glass Elevators - 0.2 km / 0.2 mi
450 Sutter Building - 0.3 km / 0.2 mi
SF Masonic Auditorium - 0.5 km / 0.3 mi
Grace Cathedral - 0.7 km / 0.4 mi
Warfield Theatre - 0.7 km / 0.4 mi
Westfield San Francisco Centre - 0.7 km / 0.4 mi
Golden Gate Theatre - 0.8 km / 0.5 mi
Palace Hotel - 0.9 km / 0.6 mi
555 California Street - 1 km / 0.6 mi
Great American Music Hall - 1 km / 0.6 mi
Van Ness Avenue - 1 km / 0.6 mi
The Regency Ballroom - 1.1 km / 0.7 mi
San Francisco Museum of Modern Art - 1.1 km / 0.7 mi
Moscone Convention Center - 1.2 km / 0.8 mi

The nearest airports are:
San Francisco Intl. Airport (SFO) - 22.9 km / 14.2 mi
Oakland Intl. Airport (OAK) - 31.4 km / 19.5 mi
San Carlos, CA (SQL) - 40.2 km / 25 mi
Concord, CA (CCR-Buchanan Field) - 46.9 km / 29.1 mi

The preferred airport for JW Marriott San Francisco Union Square is San Francisco Intl. Airport (SFO).

Rooms

Stay in one of 344 guestrooms featuring Smart televisions. Your pillowtop bed comes with down comforters and premium bedding. 55-inch flat-screen televisions with premium TV channels provide entertainment, with wired and wireless internet access available for a surcharge. Partially open bathrooms with showers feature designer toiletries and hair dryers.

Dining

Enjoy Californian cuisine at Level III Restaurant, a restaurant which features a bar/lounge, or stay in and take advantage of the room service (during limited hours).

Amenities & features

Take advantage of recreation opportunities such as a 24-hour fitness center or take in the view from a terrace and a garden. Additional amenities at this hotel include complimentary wireless internet access, gift shops/newsstands, and a hair salon.
Featured amenities include express check-in, express check-out, and complimentary newspapers in the lobby. Planning an event in San Francisco? This hotel has 4352 square feet (404 square meters) of space consisting of conference space and 15 meeting rooms.

Getting here

Sorry, no airport shuttle available.

Check-in & check-out

Check-in 4:00 PM - midnight
Check-out 11:00 AM
  • Extra-person charges may apply and vary depending on property policy
  • Government-issued photo identification and a credit card, debit card, or cash deposit 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
  • This property accepts credit cards; cash is not accepted
  • Cashless transactions are available
  • This property uses eco-friendly cleaning products
  • Noise-free guestrooms cannot be guaranteed
  • Safety features at this property include a carbon monoxide detector, a fire extinguisher, a smoke detector, a security system, a first aid kit, and window guards
  • This property affirms that it follows the cleaning and disinfection practices of Commitment to Clean (Marriott)
An adult age 18 or older must assume all liability for the booking. Front desk staff will greet guests on arrival at the property. Information provided by the property may be translated using automated translation tools.
Contactless check-in is available
Contactless check-out is available

Pet policy

  • Pets allowed
  • Pet max weight (per pet) in kg is 11
  • Pet max weight (per pet) in lb is 25
  • Service animals are allowed
  • Service animals are exempt from fees/restrictions
  • Service animals complying with ADA Title lll regulations are allowed.

Fees & policies

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

  • Destination fee: USD 41.13 per accommodation, per night
  • Fee for in-room wireless internet: USD 14.95 per day (rates may vary)
  • Fee for in-room wired internet: USD 17.95 per day (rates may vary)
  • Valet parking fee: USD 79 per night (in/out privileges)
  • Pet deposit: USD 100 per stay
  • Pet fee: USD 100.00 per accommodation, per stay
  • Service animals are exempt from fees<

Know before you go

  • The property has connecting/adjoining rooms, which are subject to availability and can be requested by contacting the property using the number on the booking confirmation.
  • Parking height restrictions apply.
  • Cashless payment methods are available for all transactions and guests can access their rooms with a mobile device.
  • Contactless check-in and contactless check-out are available.
  • This property welcomes guests of all sexual orientations and gender identities (LGBTQ+ friendly).