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.

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Floor plans

Detailed floor plans for The St. Regis Chicago are published on the venue’s official site.

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Room capacities & dimensions

Room capacities and dimensions for The St. Regis Chicago
SpaceSq ft / m²CeilingBanquetTheaterClassroomReceptionConferenceU-Shape
Astor BallroomPlan this room →4,721 sq ft439 m²30 ft9.1 m2404202433506680
Astor Ballroom IPlan this room →2,341 sq ft217 m²30 ft9.1 m1101761081754257
Astor Ballroom IIPlan this room →2,379 sq ft221 m²30 ft9.1 m1101761081754257
Astor Ballroom Pre-FunctionPlan this room →1,370 sq ft127 m²30 ft9.1 m40——180——
CarnegiePlan this room →713 sq ft66 m²11 ft3.4 m404836481827
Drawing RoomPlan this room →475 sq ft44 m²10 ft3 m35——35——
John Jacob Astor BoardroomPlan this room →546 sq ft51 m²11 ft3.4 m————10—
LibraryPlan this room →432 sq ft40 m²10.6 ft3.2 m30——33——
MorganPlan this room →783 sq ft73 m²11 ft3.4 m405036501827
RockefellerPlan this room →1,157 sq ft107 m²11 ft3.4 m507236703033
St. Regis TerracePlan this room →2,706 sq ft251 m²—80——160——
Third Floor Pre FunctionPlan this room →2,321 sq ft216 m²11 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.

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