Cowdray Hall & Council Room at 20 Cavendish Square

Cowdray Hall & Council Room is 33 x 9 m (108 x 30 ft), 297 m² (3,197 sq ft), with a 5 m (16 ft) ceiling.

Plan view

LED wall that fits

Under a 5 m ceiling with 1.5 m trim and 0.3 m clearance you get 6 rows of 500 mm tile flown. Along the 33 m wall a Absen PL2.5 Plus V2 wall runs 52 x 6 (10400 x 1200 px, 2,434 kg, 49.9 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, Cowdray Hall & Council Room holds about 473 theater seats, 193 banquet seats at rounds of 10, or 133 classroom seats. Back row in theater is roughly 26 m from the downstage edge; the previz checks whether the bottom of the wall clears the heads in front.

Other rooms at 20 Cavendish Square

• Annie/Agnes Room16.5 x 7.2 m (54 x 24 ft) · 3 m ceiling
• Council Room13 x 9 m (43 x 30 ft) · 5 m ceiling
• Peggy Nuttall Room16 x 5.2 m (52 x 17 ft) · 3.5 m ceiling
• Peggy Nuttall Room16 x 5.2 m (52 x 17 ft) · 3.5 m ceiling
• Rosalind Paget Room10.7 x 6.8 m (35 x 22 ft) · 2.4 m ceiling
• Edith Cavell Room7 x 6 m (23 x 20 ft) · 2.4 m ceiling
• Sarah Swift Room7 x 5.5 m (23 x 18 ft) · 4 m ceiling
• Jean McFarlane Room6.5 x 5.5 m (21 x 18 ft) · 4 m ceiling
• Marjorie Simpson Room6.4 x 5 m (21 x 16 ft) · 4 m ceiling
• Mona Grey Room5.6 x 4.7 m (18 x 15 ft) · 4 m ceiling
• Florence Nightingale Room4.6 x 4.5 m (15 x 15 ft) · 2.4 m ceiling
• Mary Seacole Room5 x 3 m (16 x 10 ft) · 2.4 m ceiling

Published dimensions (source), fetched 2026-09-05. All rooms at 20 Cavendish Square · Venues in London