Millennium Hilton New York One UN Plaza — Event Spaces, Floor Plans & Capacities

One Un Plaza, New York, NY 10017

Millennium Hilton New York One UN Plaza gives New York event planners 26 spaces to work with across 25,818 sq ft2,399 m² of function space. The largest room, Grand Ballroom, hosts up to 450 guests. Review the layouts and seating capacities below, then test your setup in 3D — free.

Across its 26 spaces, Millennium Hilton New York One UN Plaza handles theater-style sessions for up to 400, seated banquets for 360 and standing receptions for 450. 5 smaller rooms suit breakouts and board meetings. Exact figures for every room and setup style are in the chart below.

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Floor plans

Detailed floor plans for Millennium Hilton New York One UN Plaza are published on the venue’s official site.

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Room capacities & dimensions

Room capacities and dimensions for Millennium Hilton New York One UN Plaza
SpaceSq ft / m²CeilingBanquetTheaterClassroomReceptionConferenceBoardroomU-ShapeHollow Sq.
AstoriaPlan this room →486 sq ft45 m²—3040203525—2020
BaysidePlan this room →288 sq ft27 m²—2020101510—1010
Bellaire TheaterPlan this room →1,568 sq ft146 m²——126110—————
CoronaPlan this room →594 sq ft55 m²—5056305525—2020
Diplomat BallroomPlan this room →2,044 sq ft190 m²—150200130200—8060—
DitmarsPlan this room →594 sq ft55 m²—5056305525—2020
East ElmhurstPlan this room →594 sq ft55 m²—5056305525—2020
FairfieldPlan this room →594 sq ft55 m²—5056305525—2020
Glendale BoardroomPlan this room →360 sq ft33 m²—————12———
Governor's RoomPlan this room →570 sq ft53 m²—48403050—2020—
Grand BallroomPlan this room →4,264 sq ft396 m²—36040025045090—9090
HamiltonPlan this room →594 sq ft55 m²—5056305525—2020
IvyPlan this room →594 sq ft55 m²—5056305525—2020
JacksonPlan this room →594 sq ft55 m²—5056305525—2020
Landmark RoomPlan this room →1,740 sq ft162 m²—607030110—3030—
Manhattan APlan this room →580 sq ft54 m²—50703080—2015—
Manhattan BPlan this room →841 sq ft78 m²—40402480—2015—
Manhattan RoomPlan this room →1,682 sq ft156 m²—11012565125—4040—
Metropolitan RoomPlan this room →434 sq ft40 m²10 ft3 m40352443—2020—
Riverview APlan this room →560 sq ft52 m²—50402056—2020—
Riverview BPlan this room →560 sq ft52 m²—50402056—2020—
Riverview RoomPlan this room →1,120 sq ft104 m²—10011260150—4040—
Salon 1Plan this room →1,404 sq ft130 m²—1201257512535—4040
Salon 2Plan this room →1,404 sq ft130 m²—1201257512535—4040
Salon 3Plan this room →1,404 sq ft130 m²—1201257512535—4040
Additional spaces (dimensions only) (1)
Additional spaces with published dimensions only at Millennium Hilton New York One UN Plaza
SpaceSq ft / m²Ceiling
Lobby BoardroomPlan this room →351 sq ft33 m²11 ft3.4 m

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

Frequently asked questions

How many event spaces does Millennium Hilton New York One UN Plaza have?
Millennium Hilton New York One UN Plaza has 26 event spaces totaling 25,818 sq ft.
What is the largest event space at Millennium Hilton New York One UN Plaza?
The largest event space at Millennium Hilton New York One UN Plaza is Grand Ballroom, which holds up to 450 guests across 4,264 sq ft.
What is the banquet capacity of Grand Ballroom at Millennium Hilton New York One UN Plaza?
Grand Ballroom seats up to 360 guests in a banquet layout.
How many people fit in Grand Ballroom theater-style?
Grand Ballroom holds up to 400 guests in a theater setup.
What are the dimensions of Grand Ballroom?
Grand Ballroom measures 82 × 52 ft (4,264 sq ft).

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