The Westin San Diego Gaslamp Quarter — Event Spaces, Floor Plans & Capacities

910 Broadway Cir, San Diego, CA 92101

35 rooms · largest space: California Ballroom, 9,064 sq ft842 m²

The Westin San Diego Gaslamp Quarter gives San Diego event planners 35 rooms to work with. The largest space is California Ballroom, 9,064 sq ft842 m² (divisible into 3 sections). It holds up to 950 guests. Review the layouts and seating capacities below, then test your setup in 3D — free.

Plan an event in California Ballroom: open a free to-scale layout seating 560 at round tables in its 88 × 103 ft footprint at floors.live/start — no account needed.

Across its 35 rooms, The Westin San Diego Gaslamp Quarter handles theater-style sessions for up to 900, seated banquets for 690 and standing receptions for 950. 8 smaller rooms suit breakouts and board meetings. Exact figures for every room and setup style are in the chart below.

Plan your event in this space — free

Unverified listing — compiled from The Westin San Diego Gaslamp Quarter’s published information. Venue staff can verify capacities and setups free: floors.live/venues/us/california/san-diego/the-westin-san-diego-gaslamp-quarter/?claim=1.

Floor plans

Detailed floor plans for The Westin San Diego Gaslamp Quarter are published on the venue’s official site.

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Room capacities & dimensions

35 rooms, 47 configurations. Combined and divided set-ups are listed under their room.

Room capacities and dimensions for The Westin San Diego Gaslamp Quarter
SpaceCeiling
BalboaPlan this room →700 sq ft65 m²8 ft2.4 m486030702022
Balboa PassagePlan this room →416 sq ft39 m²8 ft2.4 m———303—
California Ballroom APlan this room →3,080 sq ft286 m²16 ft4.9 m2303001683158482
3 configurations with California Ballroom A
Combined and divided set-ups that include California Ballroom A
ConfigurationSq ft / m²CeilingBanquetTheaterClassroomReceptionConferenceU-Shape
California BallroomPlan this room →9,064 sq ft842 m²16 ft4.9 m690900480950—246
California Ballroom ABPlan this room →5,984 sq ft556 m²16 ft4.9 m460600336630168164
California Ballroom BCPlan this room →5,984 sq ft556 m²16 ft4.9 m460600336630168164
California Ballroom BPlan this room →2,904 sq ft270 m²16 ft4.9 m2303001683158482
California Ballroom CPlan this room →3,080 sq ft286 m²16 ft4.9 m2303001683158482
Cardiff APlan this room →168 sq ft16 m²8 ft2.4 m10156—8—
1 configuration with Cardiff A
Combined and divided set-ups that include Cardiff A
ConfigurationSq ft / m²CeilingBanquetTheaterClassroomReceptionConferenceU-Shape
CardiffPlan this room →700 sq ft65 m²8 ft2.4 m——————
Cardiff BPlan this room →156 sq ft14 m²8 ft2.4 m10156—8—
Cardiff CPlan this room →126 sq ft12 m²8 ft2.4 m—12——6—
Cardiff DPlan this room →224 sq ft21 m²8 ft2.4 m10166—8—
CoronadoPlan this room →850 sq ft79 m²8 ft2.4 m508040852830
Del MarPlan this room →1,147 sq ft107 m²10 ft3 m80112721152631
Harbor APlan this room →600 sq ft56 m²8 ft2.4 m406030602022
1 configuration with Harbor A
Combined and divided set-ups that include Harbor A
ConfigurationSq ft / m²CeilingBanquetTheaterClassroomReceptionConferenceU-Shape
HarborPlan this room →1,200 sq ft111 m²8 ft2.4 m80120601254840
Harbor BPlan this room →600 sq ft56 m²8 ft2.4 m406030602022
Harbor TerracePlan this room →2,043 sq ft190 m²—80——150——
Imperial BoardroomPlan this room →630 sq ft59 m²10 ft3 m406028702020
La JollaPlan this room →1,240 sq ft115 m²11 ft3.4 m80112721202835
Pacifica BoardroomPlan this room →630 sq ft59 m²10 ft3 m————20—
Plaza APlan this room →580 sq ft54 m²10 ft3 m506632602024
3 configurations with Plaza A
Combined and divided set-ups that include Plaza A
ConfigurationSq ft / m²CeilingBanquetTheaterClassroomReceptionConferenceU-Shape
PlazaPlan this room →1,740 sq ft162 m²10 ft3 m1302001001855852
Plaza ABPlan this room →1,160 sq ft108 m²10 ft3 m90132661203840
Plaza BCPlan this room →1,160 sq ft108 m²10 ft3 m80132661203840
Plaza BPlan this room →580 sq ft54 m²10 ft3 m406632602024
Plaza CPlan this room →580 sq ft54 m²10 ft3 m406632602024
PoolPlan this room →1,577 sq ft147 m²19 ft5.8 m———60——
Private Dining RoomPlan this room →520 sq ft48 m²14 ft4.3 m405042552322
San Diego BallroomPlan this room →5,940 sq ft552 m²18 ft5.5 m430650300600—164
San Diego FoyerPlan this room →330 sq ft31 m²10 ft3 m————3—
Santa FePlan this room →1,128 sq ft105 m²10 ft3 m80144721154046
Sierra APlan this room →575 sq ft53 m²10 ft3 m406027602018
1 configuration with Sierra A
Combined and divided set-ups that include Sierra A
ConfigurationSq ft / m²CeilingBanquetTheaterClassroomReceptionConferenceU-Shape
SierraPlan this room →1,150 sq ft107 m²10 ft3 m8011048120——
Sierra BPlan this room →575 sq ft53 m²10 ft3 m406027602018
SolanaPlan this room →336 sq ft31 m²11 ft3.4 m2030163014—
Additional spaces (dimensions only) (7)
Additional spaces with published dimensions only at The Westin San Diego Gaslamp Quarter
SpaceSq ft / m²Ceiling
California FoyerPlan this room →1,500 sq ft139 m²—
Coronado LoungePlan this room →572 sq ft53 m²10 ft3 m
Garden Terrace 1Plan this room →1,890 sq ft176 m²—
3 configurations with Garden Terrace 1
Combined and divided set-ups that include Garden Terrace 1
ConfigurationSq ft / m²Ceiling
Garden TerracePlan this room →5,778 sq ft537 m²9 ft2.7 m
Garden Terrace 1 & 2Plan this room →3,834 sq ft356 m²—
Garden Terrace 2 & 3Plan this room →3,834 sq ft356 m²—
Garden Terrace 2Plan this room →1,890 sq ft176 m²—
Garden Terrace 3Plan this room →1,890 sq ft176 m²—
Harbor FoyerPlan this room →800 sq ft74 m²10 ft3 m
Santa Fe FoyerPlan this room →1,302 sq ft121 m²12 ft3.7 m

Figures from published venue data; blank cells mean the venue hasn’t published that number. Verify final counts with the venue.

Sizing another room? Try the event room capacity calculator or the floor plan scale converter, or compare the largest event spaces in San Diego.

Frequently asked questions

What is the floor plan of The Westin San Diego Gaslamp Quarter?

The Westin San Diego Gaslamp Quarter has 35 rooms. The largest space is California Ballroom, 9,064 sq ft (88 × 103 ft). Every room's dimensions and seating capacity by setup are listed on this page. The Westin San Diego Gaslamp Quarter's own floor plans are published on its website, linked from this page.

How many event rooms does The Westin San Diego Gaslamp Quarter have?

The Westin San Diego Gaslamp Quarter has 35 rooms. 47 configurations are listed on this page.

What is the largest space at The Westin San Diego Gaslamp Quarter?

California Ballroom, 9,064 sq ft (divisible into 3 sections): 88 × 103 ft, 690 banquet / 900 theater.

How many people can The Westin San Diego Gaslamp Quarter seat for a banquet?

Up to 690 in California Ballroom. The next largest room, San Diego Ballroom, seats 430.

Can California Ballroom be divided?

Yes. California Ballroom divides into 3 sections: California Ballroom A, California Ballroom B, California Ballroom C.

What is the ceiling height at The Westin San Diego Gaslamp Quarter?

The highest ceiling is 19 ft, in Pool.

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