The Westin South Coast Plaza, Costa Mesa

686 Anton Boulevard, Costa Mesa, California
49,267
Sq ft event space
36
Meeting rooms
900
MAX Capacity
394
Guest rooms

The Westin South Coast Plaza, Costa Mesa is a premier event destination offering world-class facilities for weddings, corporate events, conferences, galas, and social gatherings. With 49267 sq ft of flexible event space across 36 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

394 rooms available for individual stays and discounted room blocks.

DKNG

DKNG

DLUX

DLUX

DQUE

DQUE

EDDB

EDDB

Meeting & event space

49267 sq ft across 36 configurable rooms. Tap a room for capacities and setups.

Plaza Ballroom

7598 · 131 x 58 ft · 12 ft ceiling
Max capacity900
Floor area7598
Dimensions131 x 58 ft
Ceiling height12 ft
Configurations4
Capacity by setup
900
Theater
650
Banquet
500
Classroom
900
Reception

Santa Ana/Costa Mesa

5858 · 101 x 58 ft · 12 ft ceiling
Max capacity600
Floor area5858
Dimensions101 x 58 ft
Ceiling height12 ft
Configurations4
Capacity by setup
475
Theater
480
Banquet
290
Classroom
600
Reception

East Galleria

4898 · 158 x 31 ft · 12 ft ceiling
Max capacity500
Floor area4898
Dimensions158 x 31 ft
Ceiling height12 ft
Configurations2
Capacity by setup
200
Banquet
500
Reception

Costa Mesa/Balboa

4814 · 83 x 58 ft · 12 ft ceiling
Max capacity475
Floor area4814
Dimensions83 x 58 ft
Ceiling height12 ft
Configurations5
Capacity by setup
425
Theater
400
Banquet
210
Classroom
85
U-Shape
475
Reception

Terrace Pavilion

4560 · 120 x 38 ft · 15 ft ceiling
Max capacity660
Floor area4560
Dimensions120 x 38 ft
Ceiling height15 ft
Configurations4
Capacity by setup
660
Theater
380
Banquet
275
Classroom
484
Reception

Rooftop Terrace

3910 · 85 x 46 ft
Max capacity500
Floor area3910
Dimensions85 x 46 ft
Configurations2
Capacity by setup
300
Theater
500
Reception

Costa Mesa

3132 · 54 x 58 ft · 12 ft ceiling
Max capacity300
Floor area3132
Dimensions54 x 58 ft
Ceiling height12 ft
Configurations5
Capacity by setup
300
Theater
250
Banquet
160
Classroom
69
U-Shape
300
Reception

Catalina

3074 · 0 x 0 ft
Max capacity110
Floor area3074
Dimensions0 x 0 ft
Configurations5
Capacity by setup
50
Theater
100
Banquet
40
Classroom
25
U-Shape
110
Reception

Santa Ana

2726 · 47 x 58 ft · 12 ft ceiling
Max capacity300
Floor area2726
Dimensions47 x 58 ft
Ceiling height12 ft
Configurations5
Capacity by setup
225
Theater
180
Banquet
130
Classroom
60
U-Shape
300
Reception

Lido

2627 · 71 x 37 ft · 12 ft ceiling
Max capacity300
Floor area2627
Dimensions71 x 37 ft
Ceiling height12 ft
Configurations5
Capacity by setup
300
Theater
180
Banquet
120
Classroom
50
U-Shape
70
Reception

Key amenities

Everything available on-site for your event and guests.

Interactive Map

  • Complimentary coffee in lobby
  • Complimentary newspaper in lobby
  • Concierge lounge
  • Hairdresser/barber
  • Video checkout

Other Hotel Service

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

Recreational facilities

  • Brainy Actz Escape Rooms Irvine
  • Cabanas/Palapas Location
  • Cabanas/Palapas Marketing Description
  • Casino
  • Childrens Pool Outdoor
  • Costa Mesa 55 Tavern Bowl
  • Costa Mesa Golf Course
  • Course Total Yardage
  • Disneyland Resort
  • Equipment Available in Fitness Center
  • Game room
  • Huntington Beach
  • Laguna Beach
  • Maximum Swimming Pool Depth
  • Newport Beach
  • Number of Holes
  • Outdoor Heated Pool
  • Par for Course
  • Pickleball Courts
  • Pool Open Year Around

Location & transportation

686 Anton Boulevard, Costa Mesa, California

AI