The Westin St. Francis San Francisco on Union Square

335 Powell Street, San Francisco, California
57,846
Sq ft event space
37
Meeting rooms
1,500
MAX Capacity
0
Guest rooms

The Westin St. Francis San Francisco on Union Square is a premier event destination offering world-class facilities for weddings, corporate events, conferences, galas, and social gatherings. With 57846 sq ft of flexible event space across 37 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.

BAYV

BAYV

CITY

CITY

CSTE

CSTE

DBDB

DBDB

Meeting & event space

57846 sq ft across 37 configurable rooms. Tap a room for capacities and setups.

Grand Ballroom

10700 · 94 x 114 ft · 16 ft ceiling
Max capacity1500
Floor area10700
Dimensions94 x 114 ft
Ceiling height16 ft
Configurations4
Capacity by setup
1100
Theater
980
Banquet
800
Classroom
1500
Reception

California East & West

6200 · 79 x 79 ft · 9 ft ceiling
Max capacity600
Floor area6200
Dimensions79 x 79 ft
Ceiling height9 ft
Configurations4
Capacity by setup
500
Theater
500
Banquet
330
Classroom
600
Reception

California West

3476 · 79 x 44 ft · 9 ft ceiling
Max capacity400
Floor area3476
Dimensions79 x 44 ft
Ceiling height9 ft
Configurations5
Capacity by setup
350
Theater
320
Banquet
250
Classroom
60
U-Shape
400
Reception

Colonial

3276 · 63 x 52 ft · 24 ft ceiling
Max capacity350
Floor area3276
Dimensions63 x 52 ft
Ceiling height24 ft
Configurations5
Capacity by setup
350
Theater
300
Banquet
240
Classroom
50
U-Shape
300
Reception

Tower Salon A

3240 · 60 x 54 ft · 11 ft ceiling
Max capacity300
Floor area3240
Dimensions60 x 54 ft
Ceiling height11 ft
Configurations5
Capacity by setup
300
Theater
290
Banquet
200
Classroom
40
U-Shape
300
Reception

Golden Gate

2820 · 0 x 0 ft · 15 ft ceiling
Max capacity350
Floor area2820
Dimensions0 x 0 ft
Ceiling height15 ft
Configurations4
Capacity by setup
275
Theater
270
Banquet
150
Classroom
350
Reception

California East

2765 · 79 x 35 ft · 9 ft ceiling
Max capacity200
Floor area2765
Dimensions79 x 35 ft
Ceiling height9 ft
Configurations5
Capacity by setup
200
Theater
200
Banquet
125
Classroom
45
U-Shape
200
Reception

Mission Bay

2415 · 0 x 0 ft · 19 ft ceiling
Max capacity200
Floor area2415
Dimensions0 x 0 ft
Ceiling height19 ft
Configurations4
Capacity by setup
200
Theater
140
Banquet
108
Classroom
200
Reception

Italian

2340 · 65 x 36 ft · 24 ft ceiling
Max capacity250
Floor area2340
Dimensions65 x 36 ft
Ceiling height24 ft
Configurations1
Capacity by setup
250
Reception

Georgian

2100 · 54 x 40 ft · 10 ft ceiling
Max capacity200
Floor area2100
Dimensions54 x 40 ft
Ceiling height10 ft
Configurations5
Capacity by setup
140
Theater
150
Banquet
110
Classroom
40
U-Shape
200
Reception

Key amenities

Everything available on-site for your event and guests.

Interactive Map

  • Check cashing policy
  • Complimentary coffee in lobby
  • Complimentary newspaper in lobby
  • Concierge lounge
  • Hairdresser/barber

Other Hotel Service

  • 24-hour coffee shop
  • Accessible parking
  • Complimentary in-room coffee or tea
  • Concierge desk
  • Indoor parking
  • Long term parking
  • Motorcycle parking
  • Off-Site parking
  • On-Site parking
  • Parking
  • Parking fee managed by hotel
  • Technical concierge
  • Valet parking

Recreational facilities

  • Baker Beach
  • Casino
  • Cocoon Day Spa
  • Equinox Union Street
  • Equipment Available in Fitness Center
  • Exploratorium
  • Fitness Service
  • Game room
  • Golden Gate Bridge
  • Marshall's Beach
  • Ocean Beach
  • Pier 39
  • Pure Organic Spa
  • San Francisco Cable Car
  • WestinWORKOUT® Fitness Studio

Location & transportation

335 Powell Street, San Francisco, California

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