The Westin South Coast Plaza, Costa Mesa

Events

Start Planning Your Meetings or Events Here

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

24

Event Rooms

40074 SQ FT

Total Event Space

900

Capacity Largest Space
Explore Us Virtually
Take a virtual tour of our centrally located Orange County hotel and view our spacious hotel rooms and suites, WestinWORKOUT® hotel fitness center, heated outdoor pool, and 40,000 square feet of versatile event space.
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Executive Boardroom

Meeting and Events

Take advantage of over 40,000 square feet of space at our hotel with meeting rooms in Costa Mesa

Our largest Costa Mesa meeting space, the Plaza Ballroom, has hosted many premier meetings Learn More
Enjoy post-meeting cocktails under the stars, on our outdoor Waterfall Terrace or Rooftop Terrace Learn More
Stay focused with nutritious catering at our hotel with meeting rooms in Costa Mesa Learn More
Our team will see to everything from banquet hall décor to arranging group outings in Costa Mesa Learn More
Get our exclusive rate when booking 10 or more rooms at our hotel with meeting rooms in Costa Mesa Learn More

Experience Costa Mesa

Discover a haven of wellness and renewal to feed your journey in Orange County.

Hotel in Costa Mesa, CA
Waterfall Terrace

Weddings and Occasions

Our wedding venues in Costa Mesa, CA, can accommodate intimate bridal parties or grand receptions

Celebrate with a reception in the grand Plaza Ballroom wedding venue in Costa Mesa, CA Learn More
Let our outdoor wedding venues in Costa Mesa, CA, inspire your wedding or special event Learn More
Join your wedding guests on a tour of attractions or hit the vibrant nightlife venues in Costa Mesa Learn More
Our venue in Costa Mesa offers a package for Indian weddings; let us honor your cultural traditions Learn More
Choose a wedding package including venue rental, catering and fun group outings in Costa Mesa Learn More
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Rewarding Travel from Start to Finish
Earn up to 60,000 points per qualified event with Marriott Bonvoy Events. Elite members earn more with bonus points.

Please note: all room sizes are approximate.

Frequently Asked Questions