JW Marriott San Francisco Union Square

515 Mason Street, San Francisco, California
12,242
Sq ft event space
19
Meeting rooms
500
MAX Capacity
0
Guest rooms

JW Marriott San Francisco Union Square is a premier event destination offering world-class facilities for weddings, corporate events, conferences, galas, and social gatherings. With 12242 sq ft of flexible event space across 19 configurable rooms, we bring your vision to life with an experienced in-house events team.

Our dedicated coordinators, award-winning catering team, and state-of-the-art audio-visual capabilities ensure every detail is flawless — from the first site visit to the final dance.

Guest rooms

rooms available for individual stays and discounted room blocks.

CLBL

CLBL

CLEX

CLEX

EKNG

EKNG

FAMZ

FAMZ

Meeting & event space

12242 sq ft across 19 configurable rooms. Tap a room for capacities and setups.

Metropolitan Ballroom

4352 · 64 x 68 ft · 12 ft ceiling
Max capacity500
Floor area4352
Dimensions64 x 68 ft
Ceiling height12 ft
Configurations5
Capacity by setup
400
Theater
330
Banquet
234
Classroom
64
U-Shape
500
Reception

Metropolitan A

2074 · 61 x 34 ft · 12 ft ceiling
Max capacity218
Floor area2074
Dimensions61 x 34 ft
Ceiling height12 ft
Configurations5
Capacity by setup
218
Theater
150
Banquet
104
Classroom
57
U-Shape
175
Reception

Metropolitan BC

2074 · 61 x 34 ft · 12 ft ceiling
Max capacity218
Floor area2074
Dimensions61 x 34 ft
Ceiling height12 ft
Configurations5
Capacity by setup
218
Theater
150
Banquet
104
Classroom
57
U-Shape
175
Reception

Skyline BC

2000 · 80 x 25 ft · 10 ft ceiling
Max capacity180
Floor area2000
Dimensions80 x 25 ft
Ceiling height10 ft
Configurations5
Capacity by setup
180
Theater
150
Banquet
90
Classroom
66
U-Shape
180
Reception

Skyline A

1825 · 73 x 25 ft · 10 ft ceiling
Max capacity150
Floor area1825
Dimensions73 x 25 ft
Ceiling height10 ft
Configurations5
Capacity by setup
128
Theater
120
Banquet
75
Classroom
54
U-Shape
150
Reception

Metropolitan B

1088 · 32 x 34 ft · 12 ft ceiling
Max capacity100
Floor area1088
Dimensions32 x 34 ft
Ceiling height12 ft
Configurations5
Capacity by setup
96
Theater
80
Banquet
66
Classroom
30
U-Shape
100
Reception

Skyline B

1000 · 40 x 25 ft · 10 ft ceiling
Max capacity80
Floor area1000
Dimensions40 x 25 ft
Ceiling height10 ft
Configurations5
Capacity by setup
70
Theater
80
Banquet
36
Classroom
27
U-Shape
80
Reception

Skyline C

1000 · 40 x 25 ft · 10 ft ceiling
Max capacity80
Floor area1000
Dimensions40 x 25 ft
Ceiling height10 ft
Configurations5
Capacity by setup
70
Theater
70
Banquet
36
Classroom
27
U-Shape
80
Reception

Metropolitan C

986 · 29 x 34 ft · 12 ft ceiling
Max capacity118
Floor area986
Dimensions29 x 34 ft
Ceiling height12 ft
Configurations5
Capacity by setup
118
Theater
80
Banquet
66
Classroom
30
U-Shape
100
Reception

Terrace

625 · 25 x 25 ft · 10 ft ceiling
Max capacity40
Floor area625
Dimensions25 x 25 ft
Ceiling height10 ft
Configurations2
Capacity by setup
30
Banquet
40
Reception

Key amenities

Everything available on-site for your event and guests.

Interactive Map

  • Barber shop
  • Complimentary coffee in lobby
  • Complimentary newspaper in lobby
  • Hairdresser/barber
  • Video checkout

Other Hotel Service

  • 24-hour coffee shop
  • ATM/Cash machine
  • Accessible parking
  • Complimentary in-room coffee or tea
  • Concierge desk
  • Indoor parking
  • Motorcycle parking
  • Off-Site parking
  • On-Site parking
  • Parking
  • Technical concierge
  • Valet parking

Recreational facilities

  • Aquarium of the Bay
  • Baker Beach
  • California Academy of Sciences
  • Casino
  • Course Total Yardage
  • Equipment Available in Fitness Center
  • Fitness Center
  • Flemming Course
  • Game room
  • Harding Park Course
  • Kabuki Springs & Spa
  • Lincoln Park Golf Course
  • Number of Holes
  • Ocean Beach
  • Olympic Golf Course
  • Orange Theory
  • Par for Course
  • Pearl Spa
  • Presidio
  • Putting Green

Location & transportation

515 Mason Street, San Francisco, California

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