Diplomat Ballroom at Millennium Hilton New York One UN Plaza

Diplomat Ballroom is 22.3 x 8.5 m (73 x 28 ft), 190 m² (2,041 sq ft), with a 3.7 m (12 ft) ceiling.

Plan view

LED wall that fits

Under a 3.7 m ceiling with 1.5 m trim and 0.3 m clearance you get 3 rows of 500 mm tile flown, which is tight; ground-stack or go lower on trim. Along the 22.3 m wall a Absen A2 Pro wall runs 35 x 3 (5880 x 504 px, 1,050 kg, 19.4 kW).

Wall sizing assumes 1.5 m trim to the bottom edge, 0.3 m clearance under the ceiling, and a wall no wider than 80% of the longest wall. Weight and power are tile totals from the panel spec sheet; add processing, rigging, and cable.

Seating estimate

After a 12 x 7 m stage, Diplomat Ballroom holds about 234 theater seats, 95 banquet seats at rounds of 10, or 65 classroom seats. Back row in theater is roughly 15.3 m from the downstage edge; the previz checks whether the bottom of the wall clears the heads in front.

Other rooms at Millennium Hilton New York One UN Plaza

• Landmark Room17.7 x 9.1 m (58 x 30 ft) · 6.1 m ceiling
• Manhattan Room17.7 x 8.8 m (58 x 29 ft) · 3.7 m ceiling
• Riverview Room17.1 x 6.1 m (56 x 20 ft) · 3 m ceiling
• Manhattan B8.8 x 8.8 m (29 x 29 ft) · 3.7 m ceiling
• Skyline8.3 x 8.3 m (27 x 27 ft) · 3.1 m ceiling
• Manhattan A8.8 x 6.1 m (29 x 20 ft) · 3.7 m ceiling
• Governor's Room9.1 x 5.8 m (30 x 19 ft) · 3.7 m ceiling
• Riverview A8.5 x 6.1 m (28 x 20 ft) · 3 m ceiling
• Riverview B8.5 x 6.1 m (28 x 20 ft) · 3 m ceiling
• Metropolitan Room9.4 x 4.3 m (31 x 14 ft) · 3 m ceiling
• Lobby Boardroom8.2 x 4 m (27 x 13 ft) · 3.2 m ceiling
• Lobby Boardroom8.2 x 4 m (27 x 13 ft) · 3.4 m ceiling

Published dimensions (source), fetched 2026-09-05. All rooms at Millennium Hilton New York One UN Plaza · Venues in New York