San Francisco Marriott Union Square — Event Spaces & Capacities
480 Sutter St, San Francisco, CA 94108
With 14 event spaces across 16,914 sq ft1,571 m² of function space, San Francisco Marriott Union Square is a flexible choice for meetings and celebrations in San Francisco. The largest room, Union Square Ballroom, hosts up to 396 guests. Full capacity details for each room are below.
Floor plans
Detailed floor plans for San Francisco Marriott Union Square are published on the venue’s official site.
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Room capacities & dimensions
| Space | Sq ft / m² | Ceiling | Banquet | Theater | Classroom | Reception | Conference | U-Shape |
|---|---|---|---|---|---|---|---|---|
| 30th Floor Prefunction AreaPlan this room → | 504 sq ft47 m² | 8.5 ft2.6 m | — | — | — | 30 | — | — |
| Cable CarPlan this room → | 791 sq ft73 m² | 10.4 ft3.2 m | 32 | 66 | 20 | 20 | 18 | 21 |
| City SuitePlan this room → | 400 sq ft37 m² | 8.5 ft2.6 m | 16 | 32 | 9 | 10 | 12 | 15 |
| Russian HillPlan this room → | 709 sq ft66 m² | 11 ft3.4 m | 40 | 50 | 20 | 25 | 24 | 18 |
| SavoyPlan this room → | 1,943 sq ft181 m² | 12.5 ft3.8 m | 56 | 248 | 84 | 70 | 54 | 36 |
| Sutter IPlan this room → | 592 sq ft55 m² | 10.4 ft3.2 m | 24 | 48 | 15 | 15 | 12 | 12 |
| Sutter I, II & IIIPlan this room → | 2,059 sq ft191 m² | 10.4 ft3.2 m | 112 | 216 | 92 | 70 | — | 55 |
| Sutter IIPlan this room → | 568 sq ft53 m² | 10.4 ft3.2 m | 16 | 40 | 12 | 10 | 12 | 9 |
| Sutter IIIPlan this room → | 898 sq ft83 m² | 10.4 ft3.2 m | 40 | 81 | 24 | 25 | 24 | 18 |
| Telegraph Hill (Boardroom)Plan this room → | 375 sq ft35 m² | 9.5 ft2.9 m | — | — | — | — | 12 | — |
| Union Square BallroomPlan this room → | 3,276 sq ft304 m² | 11.5 ft3.5 m | 192 | 396 | 156 | 120 | — | 46 |
| Union Square NorthPlan this room → | 1,612 sq ft150 m² | 11.5 ft3.5 m | 96 | 216 | 88 | 60 | 28 | 36 |
| Union Square PrefunctionPlan this room → | 1,575 sq ft146 m² | 10 ft3 m | — | — | — | 120 | — | — |
| Union Square SouthPlan this room → | 1,612 sq ft150 m² | 11.5 ft3.5 m | 96 | 214 | 84 | 60 | 28 | 36 |
Figures from published venue data; blank cells mean the venue hasn’t published that number. Verify final counts with the venue.