San Diego Marriott Mission Valley — Event Spaces, Floor Plans & Capacities
8757 Rio San Diego Dr, San Diego, CA 92108
20 rooms · largest space: Rio Vista Grand Ballroom (Salons A-H), 8,448 sq ft785 m²
Planning an event in San Diego? San Diego Marriott Mission Valley has 20 meeting and event rooms. The largest space is Rio Vista Grand Ballroom (Salons A-H), 8,448 sq ft785 m². It holds up to 1,100 guests. Capacity figures for every setup style are listed per room below.
Plan an event in Rio Vista Grand Ballroom (Salons A-H): open a free to-scale layout seating 500 at round tables in its 66 × 128 ft footprint at floors.live/start — no account needed.
Between them, the 20 rooms accommodate theater-style sessions for up to 1,100, seated banquets for 720 and standing receptions for 900. 3 smaller rooms suit breakouts and board meetings. Per-room dimensions and every published setup figure are listed below.
Unverified listing — compiled from San Diego Marriott Mission Valley’s published information. Venue staff can verify capacities and setups free: floors.live/venues/us/california/san-diego/san-diego-marriott-mission-valley/?claim=1.
Floor plans
Detailed floor plans for San Diego Marriott Mission Valley are published on the venue’s official site.
Work at this venue? to publish your official floor plans and 360° tours here — free.
Room capacities & dimensions
20 rooms, 23 configurations. Combined and divided set-ups are listed under their room.
| Space | Sq ft / m² | Ceiling | Banquet | Theater | Classroom | Reception | Conference | U-Shape | |||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Balboa 1 & 2 (combined)Plan this room → | 864 sq ft80 m² | 12 ft3.7 m | 60 | 80 | 45 | 90 | 30 | 30 | |||||||||||||||||||||||||||
| Balboa 1, Balboa 2 (each)Plan this room → | 432 sq ft40 m² | 12 ft3.7 m | 24 | 40 | 24 | 40 | 16 | — | |||||||||||||||||||||||||||
| Cabrillo 1Plan this room → | 2,200 sq ft204 m² | 10 ft3 m | 140 | 200 | 100 | 175 | 38 | 38 | |||||||||||||||||||||||||||
1 configuration with Cabrillo 1
| |||||||||||||||||||||||||||||||||||
| Cabrillo 2Plan this room → | 1,550 sq ft144 m² | 10 ft3 m | 90 | 125 | 65 | 100 | 32 | 32 | |||||||||||||||||||||||||||
| Falls TerracePlan this room → | 686 sq ft64 m² | — | — | — | 686 | 20 | — | — | |||||||||||||||||||||||||||
| Fountain TerracePlan this room → | 3,000 sq ft279 m² | — | — | — | — | 120 | — | — | |||||||||||||||||||||||||||
| PoolPlan this room → | 2,800 sq ft260 m² | — | 140 | — | — | 300 | — | — | |||||||||||||||||||||||||||
| Private Dining Room (PDR)Plan this room → | 450 sq ft42 m² | — | 36 | 30 | 16 | 35 | 20 | — | |||||||||||||||||||||||||||
| Salon APlan this room → | 704 sq ft65 m² | 14 ft4.3 m | 50 | 70 | 36 | 60 | 30 | 30 | |||||||||||||||||||||||||||
2 configurations with Salon A
| |||||||||||||||||||||||||||||||||||
| Salon BPlan this room → | 704 sq ft65 m² | 14 ft4.3 m | 50 | 70 | 36 | 60 | 30 | 30 | |||||||||||||||||||||||||||
| Salon CPlan this room → | 704 sq ft65 m² | 14 ft4.3 m | 50 | 70 | 36 | 60 | 30 | 30 | |||||||||||||||||||||||||||
| Salon D, Salon E (each)Plan this room → | 2,112 sq ft196 m² | 14 ft4.3 m | 150 | 240 | 120 | 250 | 50 | 50 | |||||||||||||||||||||||||||
| Salon FPlan this room → | 704 sq ft65 m² | 14 ft4.3 m | 50 | 70 | 36 | 60 | 30 | 30 | |||||||||||||||||||||||||||
| Salon GPlan this room → | 704 sq ft65 m² | 14 ft4.3 m | 50 | 70 | 36 | 60 | 30 | 30 | |||||||||||||||||||||||||||
| Salon HPlan this room → | 704 sq ft65 m² | 14 ft4.3 m | 50 | 70 | 36 | 60 | 30 | 30 | |||||||||||||||||||||||||||
| Santa Fe 3 & 4 (combined)Plan this room → | 864 sq ft80 m² | 12 ft3.7 m | 60 | 80 | 45 | 90 | 30 | 30 | |||||||||||||||||||||||||||
| Santa Fe 3, Santa Fe 4 (each)Plan this room → | 432 sq ft40 m² | 12 ft3.7 m | 24 | 40 | 24 | 40 | 16 | — | |||||||||||||||||||||||||||
| Sierra 5 & 6 (combined)Plan this room → | 1,152 sq ft107 m² | 12 ft3.7 m | 90 | 121 | 68 | 100 | 41 | 41 | |||||||||||||||||||||||||||
| Sierra 5, Sierra 6 (each)Plan this room → | 576 sq ft54 m² | 12 ft3.7 m | 40 | 60 | 32 | 50 | 23 | 23 | |||||||||||||||||||||||||||
| West LawnPlan this room → | 4,992 sq ft464 m² | — | 330 | — | — | 500 | — | — | |||||||||||||||||||||||||||
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 San Diego Marriott Mission Valley?
San Diego Marriott Mission Valley has 20 rooms. The largest space is Rio Vista Grand Ballroom (Salons A-H), 8,448 sq ft (66 × 128 ft). Every room's dimensions and seating capacity by setup are listed on this page. San Diego Marriott Mission Valley's own floor plans are published on its website, linked from this page.
How many event rooms does San Diego Marriott Mission Valley have?
San Diego Marriott Mission Valley has 20 rooms. 23 configurations are listed on this page.
What is the largest space at San Diego Marriott Mission Valley?
Rio Vista Grand Ballroom (Salons A-H), 8,448 sq ft: 66 × 128 ft, 720 banquet / 1,100 theater.
How many people can San Diego Marriott Mission Valley seat for a banquet?
Up to 720 in Rio Vista Grand Ballroom (Salons A-H). The next largest room, West Lawn, seats 330.
What is the ceiling height at San Diego Marriott Mission Valley?
The highest ceiling is 14 ft, in Salon A.
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