What is the banquet capacity of Astor Ballroom at The St. Regis Washington, D.C.?

Astor Ballroom seats up to 150 guests in a banquet layout.

How many people fit in Astor Ballroom theater-style?

Astor Ballroom holds up to 250 guests in a theater setup.

How many event spaces does The St. Regis Washington, D.C. have?

The St. Regis Washington, D.C. has 8 event spaces totaling 11,388 sq ft.

The St. Regis Washington, D.C. — Event Spaces & Capacities

923 16th St NW, Washington, DC 20006

The St. Regis Washington, D.C. gives Washington event planners 8 spaces to work with across 11,388 sq ft1,058 m² of function space. The largest room, Astor Ballroom, hosts up to 250 guests. Review the layouts and seating capacities below, then test your setup in 3D — free.

Plan your event in this space — free

Floor plans

Detailed floor plans for The St. Regis Washington, D.C. are published on the venue’s official site.

View official floor plans at Marriott ↗Plan your event in this space — free

Work at The St. Regis Washington, D.C.? to publish your official floor plans and 360° tours here — free.

Room capacities & dimensions

Room capacities and dimensions for The St. Regis Washington, D.C.
Space	Sq ft / m²	Ceiling	Banquet	Theater	Classroom	Reception	Conference	U-Shape
Andrew JacksonPlan this room →	1,664 sq ft155 m²	13 ft4 m	80	150	70	100	45	35
Astor BallroomPlan this room →	2,508 sq ft233 m²	18 ft5.5 m	150	250	125	200	50	55
Astor TerracePlan this room →	2,052 sq ft191 m²	—	90	150	—	150	—	—
Benjamin FranklinPlan this room →	672 sq ft62 m²	12 ft3.7 m	30	30	25	30	20	14
George WashingtonPlan this room →	1,518 sq ft141 m²	12 ft3.7 m	80	150	70	100	45	36
James MonroePlan this room →	1,368 sq ft127 m²	12 ft3.7 m	100	150	70	100	40	36
Marquis de LafayettePlan this room →	648 sq ft60 m²	12 ft3.7 m	30	30	20	40	20	14
SalonPlan this room →	958 sq ft89 m²	12 ft3.7 m	40	40	25	50	24	20

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