The St. Regis Chicago — Event Spaces & Capacities
401 E Wacker Dr, Chicago, IL 60601
The St. Regis Chicago gives Chicago event planners 12 spaces to work with across 19,944 sq ft1,853 m² of function space. The largest room, Astor Ballroom, hosts up to 420 guests. Review the layouts and seating capacities below, then test your setup in 3D — free.
Floor plans
Detailed floor plans for The St. Regis Chicago are published on the venue’s official site.
Work at The St. Regis Chicago? to publish your official floor plans and 360° tours here — free.
Room capacities & dimensions
| Space | Sq ft / m² | Ceiling | Banquet | Theater | Classroom | Reception | Conference | U-Shape |
|---|---|---|---|---|---|---|---|---|
| Astor BallroomPlan this room → | 4,721 sq ft439 m² | 30 ft9.1 m | 240 | 420 | 243 | 350 | 66 | 80 |
| Astor Ballroom IPlan this room → | 2,341 sq ft217 m² | 30 ft9.1 m | 110 | 176 | 108 | 175 | 42 | 57 |
| Astor Ballroom IIPlan this room → | 2,379 sq ft221 m² | 30 ft9.1 m | 110 | 176 | 108 | 175 | 42 | 57 |
| Astor Ballroom Pre-FunctionPlan this room → | 1,370 sq ft127 m² | 30 ft9.1 m | 40 | — | — | 180 | — | — |
| CarnegiePlan this room → | 713 sq ft66 m² | 11 ft3.4 m | 40 | 48 | 36 | 48 | 18 | 27 |
| Drawing RoomPlan this room → | 475 sq ft44 m² | 10 ft3 m | 35 | — | — | 35 | — | — |
| John Jacob Astor BoardroomPlan this room → | 546 sq ft51 m² | 11 ft3.4 m | — | — | — | — | 10 | — |
| LibraryPlan this room → | 432 sq ft40 m² | 10.6 ft3.2 m | 30 | — | — | 33 | — | — |
| MorganPlan this room → | 783 sq ft73 m² | 11 ft3.4 m | 40 | 50 | 36 | 50 | 18 | 27 |
| RockefellerPlan this room → | 1,157 sq ft107 m² | 11 ft3.4 m | 50 | 72 | 36 | 70 | 30 | 33 |
| St. Regis TerracePlan this room → | 2,706 sq ft251 m² | — | 80 | — | — | 160 | — | — |
| Third Floor Pre FunctionPlan this room → | 2,321 sq ft216 m² | 11 ft3.4 m | — | — | — | 150 | — | — |
Figures from published venue data; blank cells mean the venue hasn’t published that number. Verify final counts with the venue.