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JW Marriott San Francisco Union Square

515 Mason Street, San Francisco, CA, USA, 94102
Venue image

About us

An iconic hotel in an indelible gateway city, JW Marriott San Francisco Union Square is a sought-after destination for convention attendees, business travelers and leisure guests alike. From the moment of arrival, guests will be immersed in the architecturally stunning style and world-class service that distinguishes the hotel. For those seeking convenience, Moscone Center, Market Street, the Financial District and the shops and restaurants on Union Square are only minutes away.Following a multi-million dollar renovation, our updated event spaces and accommodations celebrate the hotel’s iconic architecture and history. Dedicated event planners and our inspired catering team ensure every event – whether a business meeting, conference, social soirée or wedding – leaves your guests feeling richer than when they arrived.Featuring 16,648 square feet of distinct, modern indoor and outdoor space, warm and personalized service, exceptional dining experiences and inspired accommodations, our luxury Union Square hotel offers the perfect setting for your next meeting or event.

Venue Details

ChainMarriott Bonvoy
BrandJW Marriott
Built1987
Renovated2019
Total meeting space12,242 sq. ft.
Guest Rooms344
Venue typeHotel

Industry Ratings

Forbes Travel Guide
AAA
Northstar

Awards

Industry awards
Forbes Recommended - 2025 AAA 4 Diamond Forbes Recommended - 2024 Forbes Top 10 in San Francisco for Business Travelers Ranks #1 across entire JW Brand in Event Planning

Amenities

Room features and guest services
  • Calls (local)
  • Calls (toll-free)
  • Laundry service
  • Luggage storage
  • Room service
  • View (urban)
  • Voicemail box
Facilities
  • Onsite catering
  • Onsite gift shop
  • Onsite restaurant
  • Onsite security
  • Pet friendly
  • Rental car service
  • Space (outdoor)
  • Space (private)
  • Space (semi-private)
  • Wheelchair accessible

Meeting rooms

Total meeting space
12,242 sq. ft.
Largest room
4,352 sq. ft.
Space (private)
15,000 sq. ft.
Meeting rooms
15
Second largest room
2,074 sq. ft.
Space (semi-private)
2,000 sq. ft.
Space (outdoor)
600 sq. ft.
Explore Meeting Rooms
Explore Meeting Rooms
Find the perfect room with setup charts and interactive 3D floor plans.

Meeting space

Name
Room size
Ceiling height
Maximum capacity
U-Shape
Banquet rounds
Theater
Classroom
Boardroom
4,352 sq. ft.
64 x 68 sq. ft.
12.5 ft.
400
64
330
400
234
60
2,074 sq. ft.
61 x 34 sq. ft.
12.5 ft.
218
57
150
218
104
58
1,088 sq. ft.
32 x 34 sq. ft.
12.5 ft.
96
30
80
96
66
30
986 sq. ft.
29 x 34 sq. ft.
12.5 ft.
118
30
80
118
66
30
2,074 sq. ft.
61 x 34 sq. ft.
12.5 ft.
218
57
150
218
104
58
499 sq. ft.
27 x 19 sq. ft.
9 ft.
50
24
40
50
30
24
352 sq. ft.
24 x 15 sq. ft.
9 ft.
40
15
30
40
24
16
315 sq. ft.
21 x 15 sq. ft.
9 ft.
28
14
20
28
18
16
252 sq. ft.
21 x 12 sq. ft.
9 ft.
10
-
10
--
10

Guest rooms

Total guest rooms
344
Suites
78
Tax rate
3.5%
Occupancy rate
14%

Location

Getting Here

Distance from airport 20 mi
Parking in the area
Valet parking

Local Attractions

Golden Gate Bridge
Golden Gate Bridge
Historical landmark
20 mins
The Golden Gate Bridge is a suspension bridge spanning the Golden Gate strait, the one-mile-wide, one-point-seven-mile-long channel between San Francisco Bay and the Pacific Ocean. The Bridge connects the northern tip of San Francisco to Marin County.
N/A
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Alcatraz Island
Alcatraz Island
Historical landmark
30 mins
Alcatraz Island is located in the San Francisco Bay. The small island was developed with facilities for a lighthouse, a military fortification, a military prison , and a federal prison from 1934 until 1963. In 1972, Alcatraz became part of a national recreation area and received designation as a National Historic Landmark in 1986. Today, the island's facilities are managed by the National Park Service as part of the Golden Gate National Recreation Area; it is open to tours. Visitors can reach the island by ferry ride from Pier 33, near Fisherman's Wharf, San Francisco.
N/A
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Cable Cars/Powell Street
Cable Cars/Powell Street
Historical landmark
5 mins
At Powell and Market streets, there is a cable car turntable which serves as the beginning stop for two lines, the Powell-Mason and Powell- Hyde lines. The Powell-Mason line begins at the Powell/ Market turntable, and the line runs from there up and over Nob Hill and down to Bay Street at Fisherman's Wharf.
Powell & Market Streets
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Fisherman's Wharf
Fisherman's Wharf
Recreation
15 mins
Fisherman's Wharf is a neighborhood and popular tourist attraction in San Francisco, California. It roughly encompasses the northern waterfront area of San Francisco from Ghirardelli Square or Van Ness Avenue east to Pier 35 or Kearny Street.
100 Jefferson Street
San Francisco, CA 94133
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Chinatown
Chinatown
Recreation
10 mins
The Chinatown centered on Grant Avenue and Stockton Street in San Francisco, California, is the oldest Chinatown in North America and the largest Chinese enclave outside Asia. It is the oldest of the four notable Chinatowns in the city. Since its establishment in 1848, it has been highly important and influential in the history and culture of ethnic Chinese immigrants in North America. Chinatown is an enclave that continues to retain its own customs, languages, places of worship, social clubs, and identity.
N/A
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Embarcadero Center/Ferry Terminal
Embarcadero Center/Ferry Terminal
Recreation
15 mins
The San Francisco Ferry Building is a terminal for ferries that travel across the San Francisco Bay, a food hall and an office building. It is located on The Embarcadero in San Francisco, California.
1 Ferry Building
San Francisco, CA 94111
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Napa Valley Wine Country
Napa Valley Wine Country
Recreation
60 mins
The Wine Country is an area of Northern California in the United States known worldwide as a premium wine-growing region. Viticulture and wine-making have been practiced in the region since the mid-19th century. There are over 400 wineries in the area north of San Francisco, mostly located in the area's valleys, including Napa Valley in Napa County. Cities and towns associated with the Wine Country include Santa Rosa, Healdsburg, Sonoma, Kenwood, Petaluma, Sebastopol, Guerneville, Windsor, Geyserville, and Cloverdale in Sonoma County; Napa, Yountville, Rutherford, St. Helena and Calistoga in Napa County; and Hopland and Ukiah in Mendocino County.
N/A
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Oracle Park - home of MLB San Francisco Giants
Oracle Park - home of MLB San Francisco Giants
Recreation
20 mins
Oracle Park is a baseball park located in the South Beach neighborhood of San Francisco, California. Since 2000, it has served as the home of the San Francisco Giants, the city's Major League Baseball (MLB) franchise. Originally named Pacific Bell Park, then SBC Park in 2003 after SBC Communications acquired Pacific Bell, the stadium was ultimately christened AT&T Park in 2006 following SBC's buyout of AT&T.
24 Willie Mays Plaza
San Francisco, CA 94107
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Moscone Center
Moscone Center
Convention center
10 mins
Moscone Center is the largest convention and exhibition complex in San Francisco, California. It comprises three main halls: Two underground halls underneath Yerba Buena Gardens, known as Moscone North and Moscone South, and a three-level Moscone West exhibition hall across 4th Street.
747 Howard Street
San Francisco, CA 94103
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Financial District
Financial District
Business district
10 mins
The Financial District is a neighborhood in San Francisco, California, that serves as its main central business district. It is home to the city's largest concentration of corporate headquarters, law firms, insurance companies, real estate firms, banks, savings and loans, and other financial institutions. All six San Francisco Fortune 500 companies—McKesson, Wells Fargo, PG&E, Gap, Charles Schwab, and Salesforce.com—are located in the district.
N/A
Westfield San Francisco Centre
865 Market St
San Francisco, CA, US 94103
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Union Square
Union Square
Shopping
5 mins
Union Square is a 2.6-acre public plaza bordered by Geary, Powell, Post and Stockton Streets in downtown San Francisco, California. "Union Square" also refers to the central shopping, hotel, and theater district that surrounds the plaza for several blocks. This one-block plaza and surrounding area is one of the largest collections of department stores, upscale boutiques, gift shops, art galleries, and beauty salons in the United States, making Union Square a major tourist destination, a vital, cosmopolitan gathering place in downtown San Francisco, and one of the world's premier shopping districts
N/A
Civic Center
Civic Center
Historical landmark
15 mins
The Civic Center in San Francisco, California, is an area of a few blocks north of the intersection of Market Street and Van Ness Avenue that contains many of the city's largest government and cultural institutions. It has two large plazas (Civic Center Plaza and United Nations Plaza) and a number of buildings in classical architectural style.
Market & Van Ness
August Hall
420 Mason St
San Francisco, CA, US 94102
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Davies Symphony Hall
201 Van Ness Ave
San Francisco, CA, US 94102
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American Conservatory Theater
30 Grant Ave
San Francisco, CA, US 94108
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Asian Art Museum
200 Larkin St
San Francisco, CA, US 94102
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Saint Francis Memorial Hospital
900 Hyde St
San Francisco, CA, US 94109
Visit website
San Francisco Federal Courthouse
90 7th St
San Francisco, CA, US 94103
Visit website
Ripley's Believe It or Not!
175 Jefferson St
San Francisco, CA, US 94133
Visit website
California Academy of Sciences
Visit website

Preferred vendors

City Fit Tours NYC
City Fit Tours NYC
Boston, multi-city
We are a specialized tour company that combines sightseeing with exercise to deliver the ultimate, New York (and Chicago!) fitness experiences! Perfect as an FIT or Group activity, we offer the best way to incorporate health & wellness into trip itineraries or events and deliver authentic, local experiences at the same time!
Activity
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Extranomical Tours
Extranomical Tours
Carmel-by-the-Sea, multi-city
Extranomical Tours specializes in creating memorable public tours as well as corporate events and team experiences in the San Francisco Bay Area. Using 20 years of expertise delivering award-winning, one-of-a-kind tours that inspire creativity and connection, we work for our guests to customize an experience exploring nature, food, and wine while adding personalized touches like hotel pickups, professional photography, team-building activities, and pop-up gourmet lunches, so that every event feels like a journey with friends. In today’s dynamic remote work environment, we help HR managers, team leaders, and travel agents design customized activities that boost morale, foster cooperation, and reinforce company values. For visitors unfamiliar with the San Francisco Bay Area and in need of expert guidance on local attractions, seamless transportation solutions, and effective event execution, we leverage local knowledge to ensure that team-building events are not only memorable but also stress-free and aligned with their goals.
Activity
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Bay Lights Charters
Bay Lights Charters
San Francisco
Welcome to Bay Lights Charters! We have the right boat for you. Let us get you out on the water. For larger groups, we have a 72-foot tall ship, a replica from the Gold Rush Era, that can accommodate up to 49 passengers. We also have a 35-froot Power Yacht for smaller groups up to 6-people. Why sail with Bay Lights Charters? You will experience an easy and seamless process to book your team offsite. We can handle all the details for you or we can give guidance and support to create your custom team offsite. If you have guests from out of town they will marvel at the iconic views we sail by like Alcatraz, the Golden Gate Bridge, Sausalito, just to name a few. The photo opportunities are endless. Your tour is customized from various pick up locations around SF Bay You can also customize the food and beverage options you call the shots from our curated lists or have a hands on chef onboard Accommodations are made for all dietary needs. Our packages can accommodate a large range of budgets Your team can participate at their own interest level. Participation is always encouraged but voluntary. Our captain and crew are enthusiastic about sharing their knowledge and engage your team in technical or historical conversations on all things nautical. Your team is exposed to the perfect nautical experience because our yacht has something for everyone. You and Your Crew will be a part of living history. The Yacht is living replica of the most popular schooners to sail of SF Bay during the gold rush era. She in a class of her own and a true gem on the San Francisco Bay. With her one-of-a-kind design she has the look of an “old” ship with all the modern touches you’d want, 2-restrooms, full bar, Yummy catered food, iconic sights, engaged captain and crew just to name a few. The layout of this yacht is perfect to encourage your crew to mingle, chat with each other, and enjoy a shared adventure. If your goal is to build team morale, encourage connections, and offer a one-of-a-kind experience, look no farther. If you want a custom experience like an Angel Island BBQ or History tour, we can accommodate this. Break free from the office routine and get to know your co-workers in a unique, dynamic environment that encourages teamwork. Want to celebrate your organizations/leaders milestone achievements, give them an experience they won’t soon forget You can sail year round on this yacht due to her unique design there is no other boat on the bay that allows guests to lounge on wide expansive decks or go below and warm, comfortable and get out of the elements. Enjoy world class experience in a pristine venue This adventure is interactive as we encourage you to take the helm or help raise the sails. “Knot” your ordinary day at the office.
Activity
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Blazing Saddles Bike Rentals & Tours
Blazing Saddles Bike Rentals & Tours
San Francisco
Family owned and operated for more than 40 years, Blazing Saddles Bike Rentals & Tours has been the leader in providing corporate and incentive groups a fun, exciting and unique sightseeing adventure in San Francisco. Our warm and friendly customer service will exceed your clients’ expectations. Blazing Saddles has a large selection of state-of-the-art bikes and e-bikes, professional staff and knowledgeable, local tour guides to provide your groups with an unforgettable adventure! We can arrange events for group of any size and you can be sure that we will create a lasting and memorable experience for your group.
Activity
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Lucky Strike x Bowlero
Lucky Strike x Bowlero
Anaheim, multi-city
Bowlero: The Ultimate Event Destination Bowlero seamlessly blends classic bowling with modern entertainment to deliver an exceptional event experience. Our stylish, contemporary venues feature state-of-the-art bowling lanes, exciting arcade games, and a vibrant atmosphere, making Bowlero the perfect choice for a wide range of events. From corporate gatherings and team-building activities to milestone celebrations, recruiting events, end-of-year parties, and convention offsites, we cater to diverse needs with flair. Guests can immerse themselves in a variety of activities, including bowling, billiards, and arcade games, all while enjoying a full-service bar and a diverse menu of delectable food options. Whether you’re hosting a team-building event, a company celebration, or a casual get-together, Bowlero provides a unique and engaging setting that ensures a fun and memorable experience. Our dedicated event planners are committed to making every detail perfect, offering custom event packages and personalized service to create an unforgettable event. Bowlero stands out as the ideal venue for a dynamic and enjoyable event experience. Lucky Strike: An Elevated Event Experience Lucky Strike offers a sophisticated blend of upscale bowling, gourmet dining, and lively entertainment in a chic, modern setting. Our venues provide a stylish atmosphere where guests can enjoy striking decor, premium bowling lanes, and a diverse selection of activities including billiards and arcade games. Perfect for corporate events, team-building activities, and private parties, Lucky Strike delivers an exceptional event experience with tailored event packages designed to meet your needs. Our full-service bars offer a wide range of beverages, while our culinary team crafts delicious, upscale food options to satisfy any palate. From intimate gatherings to large-scale celebrations, Lucky Strike’s dedicated event coordinators work closely with you to ensure a seamless and memorable event. With a commitment to excellence and a focus on creating unforgettable experiences, Lucky Strike stands out as a premier destination for dynamic and engaging events.
Activity
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Totally Toronto Art/Sassy City Studio
Totally Toronto Art/Sassy City Studio
Chicago, multi-city
Our service platform covers all the bases: Retail, Wholesale and Corporate Gifting. We are the perfect partner for any business bringing an event to our city. Founded in 2014, Sassy City Studio has had ample time to refine our offerings and establish relationships with the right manufacturers to help you create memorable events. Our experience includes collaborations with Destination Toronto, various event planners, and providing staff recognition and corporate gifts for Unity Health, a network of hospitals in Toronto. The foundation of our product line is the renowned artwork of local artist David Crighton, who has been capturing the essence of your city through his memorable images since 1973. We have recently added two new artists to our platform and have plans for continued expansion along the same these for other cities in North America.
Amenities/Gifting
Logistics/Decor
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Brand Ambassadors
Brand Ambassadors
Arlington, multi-city
We provide staff for events, tradeshows, conventions, promotions, marketing tours.
Hired Entertainment
Preferred staff
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Adam Stone Magic
Adam Stone Magic
Atlanta, multi-city
I am a mentalist, hypnotist, and magician who's goal in life is to make people laugh and enjoy themselves. I perform all over the world bringing my own unique style of entertainment to corporate and private functions. I am a former award-winning special education teacher who wants nothing more than to help you make your event a success.
Activity
Hired Entertainment
Visit Profile
Merck Artist Agency
Merck Artist Agency
Apalachicola, multi-city
At Merck Artist Agency, we specialize in representing a carefully curated roster of exceptional musicians, bands, speakers, and comedians. Based in Friendswood, Texas, our agency works with talent from across the country, offering clients a dynamic, diverse selection of entertainment options for events of all kinds. Our music lineup features both original artists and high-energy cover bands, with particular strength in country music and Americana. On the speaking side, we represent a select group of inspirational speakers covering topics such as personal wellness, the mind-body connection, workplace safety, and women in leadership. Every performer in our agency is hand-selected for their talent, professionalism, and ability to deliver unforgettable experiences. At Merck Artist Agency, we take pride not only in the quality of the artists we represent but also in the personal attention and outstanding customer service we provide. Whether you’re booking live music, an engaging keynote, or a crowd-pleasing comedian, we ensure a seamless, tailored experience from start to finish.
Hired Entertainment
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Backdrop.com
Backdrop.com
Chicago, multi-city
A team of designers, thinkers, and builders with over 15 years of experience putting our clients first. We offer custom fabricated displays and portable backdrop solutions that transform spaces into immersive brand environments.
Logistics/Decor
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Additional Information

Safety Information

Cancellation Policy

72 Hours

Additional details

16,648 square feet of distinct, modern indoor and outdoor space.

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JW Marriott San Francisco Union Square Frequently Asked Questions

Explore frequently asked questions from the JW Marriott San Francisco Union Square regarding Health and Safety, Sustainability, and Diversity and Inclusion

Sustainable Practices

Please provide comments or a link to any publicly communicated JW Marriott San Francisco Union Square's sustainability or social impact goals/strategy.
Please visit Marriott.com/Serve360 for Marriott International's sustainability & social impact strategy and 2025 goals information.
Does JW Marriott San Francisco Union Square have a strategy that focuses on the elimination and diversion of waste (i.e. plastics, papers, cardboard, etc.)? If yes, please elaborate on your strategy of elimination and diversion of waste.
Yes, Paper,Newspaper,Cardboard,Mixed,Aluminum,Other Metals,Plastic,Glass,Cooking Oil,Universal Waste Recycling (batteries, light bulbs, paint),Food Packaging

Diversity and Inclusion

For US hotels only, is JW Marriott San Francisco Union Square and/or parent company certified as a 51% diverse owned business enterprise (BE)? If yes, please indicate which one of the following you are certified as:
No response.
If applicable, could you please provide a link to JW Marriott San Francisco Union Square's public report on their commitments and initiatives related to diversity, equity, and inclusion?
https://www.marriott.com/diversity/diversity-and-inclusion.mi

Health and Safety

Were practices at JW Marriott San Francisco Union Square developed based on health service recommendations from public governmental entities or private organizations? If Yes, please list which organizations were used to develop these practices.
Yes, Marriott cares greatly about every guest's experience and takes hygiene and sanitation very seriously. Marriott has established strict standards of cleanliness for all of its hotels that either meet or exceed public health department regulations. 
Does JW Marriott San Francisco Union Square clean and sanitize public areas and publicly accessible facilities (i.e. meeting rooms, restaurants, elevator banks, etc.)? If yes, describe any new measures that are taken.
Yes, Marriott cares greatly about every guest's experience and takes hygiene and sanitation very seriously. Marriott has established strict standards of cleanliness for all of its hotels that either meet or exceed public health department regulations. 
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