335 Powell Street, San Francisco, California 94102 USA
+1 415-397-7000

Start planning your meeting or event here

Tell us about your event, then we’ll contact you and plan it together.

  • 33

    Event Rooms

  • 51,213 sq ft

    Total Event Space

  • 1,500

    Capacity Largest Space

About This Venue

  • Take advantage of our vibrant Union Square location, near San Francisco’s top attractions

  • Stay connected during your meeting with high-speed Wi-Fi, available in all of our meeting spaces

  • Enjoy our signature amenities designed to enable your groups to perform their best

  • Our expert onsite event planning staff is on hand to help you throughout your event

  • Our superb location, glamorous venues and impeccable service are well suited to a variety of events

  • Delight in a range of gourmet options, designed to create memorable meetings and events

Plan an Inspired Event

  • Shared in an email
  • Embed in a website
  • Personalized with your group name, event dates, hotel, and special rates
  • Displayed in multiple languages on Marriott domains worldwide

Manage Your Event with Ease

Group Lists

If you have a list of your guests, we can make reservations for all of them.

We can send you a report showing which of your guests have reserved rooms and when they plan to arrive.

Mobile Check-In

Guests can check in before their stay, receive instant alerts when their room is ready and check out by skipping the front desk.

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Equipment and Services

Meeting Equipment

AV equipment

Film projector

LCD projector

Stage: installed

Stage: portable

Business Services

Full-service business center

High-speed Internet access

Meeting rooms:Wired,Wireless

Capacity

Capacity Chart

Convert Meters | Reset
  • Derby Room
  • 12x14x10
  • 168
  • 30
  •  
  • 12
  •  
  • 30
  • 12
  • Ascot Room
  • 19x9x10
  • 171
  • 30
  • 9
  • 12
  •  
  • 30
  • 12
  • Mayfair Room
  • 20x12x10
  • 240
  • 30
  • 20
  • 14
  • 12
  • 30
  • 20
  • Bristol Room
  • 19x13x10
  • 247
  • 25
  • 12
  • 15
  • 13
  • 25
  • 20
  • St. Francis -Club Room
  • 17x21x9
  • 357
  • 30
  • 30
  • 16
  •  
  • 30
  • 30
  • Cambridge Room
  • 25x15x11
  • 375
  • 35
  • 24
  • 20
  • 18
  • 35
  • 20
  • Board Room
  • 26x15x10
  • 390
  • 12
  •  
  • 12
  •  
  •  
  • 12
  • St. Francis Suite -Study
  • 18x23x13.3
  • 414
  • 50
  • 30
  • 16
  •  
  • 50
  • 30
  • Sussex Room
  • 16x26x9
  • 416
  • 40
  • 18
  • 20
  •  
  • 40
  • 30
  • St. Francis Suite - Library
  • 18x27x13.3
  • 486
  • 50
  • 30
  • 16
  •  
  • 50
  • 30
  • Hampton Room
  • 31x16x10
  • 496
  • 45
  • 30
  • 30
  •  
  • 45
  • 40
  • Yorkshire Room
  • 37x14x10
  • 518
  • 80
  • 22
  • 20
  •  
  • 80
  • 50
  • Kent Room
  • 26x21x10
  • 546
  • 50
  • 35
  • 24
  • 21
  • 50
  • 50
  • Essex Room
  • 33x19x10
  • 627
  • 55
  • 35
  • 30
  • 27
  • 55
  • 40
  • Victorian Room
  • 33x19x10
  • 627
  • 65
  • 30
  • 30
  • 27
  • 65
  • 40
  • Oxford Room
  • 45x15x10
  • 675
  • 70
  • 35
  • 40
  • 36
  • 70
  • 50
  • Olympic Room
  • 50x16x11
  • 800
  • 150
  • 63
  • 35
  • 32
  • 150
  • 70
  • Tower Salon B
  • 29x31x11
  • 899
  • 60
  • 27
  • 18
  • 20
  • 60
  • 50
  • Elizabethan Room A
  • 28x37x8
  • 1,036
  • 125
  • 65
  • 30
  • 30
  • 125
  • 100
  • Borgia
  • 21x52x18
  • 1,092
  • 100
  • 60
  • 30
  • 32
  • 100
  • 90
  • Elizabethan Room B
  • 31x37x8
  • 1,147
  • 135
  • 70
  • 30
  • 30
  • 135
  • 100
  • Elizabethan Room C
  • 31x37x8
  • 1,147
  • 135
  • 70
  • 30
  • 30
  • 135
  • 100
  • Elizabethan Room D
  • 32x37x8
  • 1,184
  • 140
  • 80
  • 30
  • 30
  • 140
  • 100
  • St. Francis Suite -East Room
  • 25x52x15
  • 1,300
  • 100
  • 80
  • 48
  •  
  • 100
  • 100
  • Georgian Room
  • 53x40x10
  • 1,911
  • 200
  • 110
  • 42
  • 40
  • 200
  • 150
  • Elizabethan Room AB
  • 59x37x8
  • 2,183
  • 200
  • 130
  • 50
  •  
  • 200
  • 200
  • Italian Room
  • 61x37x24
  • 2,257
  • 250
  • 150
  • 55
  • 50
  • 250
  • 200
  • Elizabethan Room BC
  • 62x37x8
  • 2,294
  • 350
  •  
  •  
  •  
  • 300
  • 200
  • Elizabethan Room CD
  • 62x37x8
  • 2,294
  • 225
  • 130
  • 50
  •  
  • 200
  • 220
  • California East
  • 79x35x9
  • 2,765
  • 225
  • 125
  • 50
  • 45
  • 225
  • 200
  • Victor's
  • 0x0x19
  • 3,051
  • 200
  • 108
  • 42
  •  
  • 200
  • 140
  • Elizabethan Room ABC
  • 90x37x8
  • 3,330
  • 350
  •  
  •  
  •  
  • 350
  • 270
  • Elizabethan Room BCD
  • 93x37x8
  • 3,441
  • 350
  •  
  •  
  •  
  • 350
  • 270
  • California West
  • 79x44x9
  • 3,476
  • 400
  • 230
  • 60
  • 60
  • 400
  • 350
  • Tower Salon A
  • 62x57x11
  • 3,534
  • 300
  • 200
  • 48
  • 40
  • 300
  • 290
  • Alexandra's
  • 0x0x19
  • 3,703
  • 300
  • 150
  • 42
  •  
  • 300
  • 250
  • Elizabethan Room
  • 121x37x8
  • 4,477
  • 440
  •  
  •  
  •  
  • 440
  • 400
  • Colonial Room
  • 67x68x24
  • 4,556
  • 400
  • 240
  • 54
  • 50
  • 400
  • 300
  • California Room
  • 79x79x9
  • 6,241
  • 625
  • 350
  •  
  •  
  • 625
  • 600
  • Grand Ballroom
  • 114x93x23.9
  • 10,602
  • 1500
  • 800
  •  
  •  
  • 1500
  • 980

Check Room Rates & Availability

The Westin St. Francis San Francisco on Union Square