The Landmark London — Event Rooms & Capacities

222 Marylebone Road, London, NW1 6JQ

11 event spaces · up to 650 guests (Grand Ballroom)

The Landmark London is a hotel in London with 11 event spaces listed here, each with the capacities the venue publishes for it. The largest figure it publishes is 650 guests, in Grand Ballroom. Check a room fits, then lay out your own tables, stage and dance floor to scale — free.

Across its rooms the venue lists theatre-style sessions for up to 512, seated dinners for 504, cabaret for 264 and standing receptions for 650.

Floor plan — Grand Ballroom

42.9 × 13.59 m (140.7 × 44.6 ft) · 610 m² (6,566 sq ft)

Drawn to scale by Floors from the venue’s published length and width (13.59m x 42.90m). Doors, windows and pillars are not shown. Check dimensions with the venue before you book.

Plan this room

Plan an event in Grand Ballroom — free

Unverified listing — compiled from The Landmark London’s own published information. Venue staff can verify it free: floors.live/venues/uk/england/london/the-landmark-london/?claim=1.

Room capacities & sizes

Capacities by layout as The Landmark London publishes them. Sizes in metres and square metres, with feet and square feet alongside.

Room	Size	Theatre	Classroom	Banquet	Cabaret	Reception	Boardroom	U-shape	Plan
Grand Ballroom	42.9 × 13.59 m (140.7 × 44.6 ft) · 610 m² (6,566 sq ft)	512	266	504	264	650	—	—	Plan this room →
Grand Ballroom I	21.81 × 13.59 m (71.6 × 44.6 ft) · 318 m² (3,423 sq ft)	210	105	240	112	300	42	50	Plan this room →
Grand Ballroom II	21.81 × 13.59 m (71.6 × 44.6 ft) · 318 m² (3,423 sq ft)	210	105	240	112	300	42	50	Plan this room →
Marble Ballroom	35.77 × 13.5 m (117.4 × 44.3 ft) · 478 m² (5,145 sq ft)	300	176	408	160	500	—	—	Plan this room →
Champagne Room	—	70	30	36	24	70	24	20	Plan this room →
Drawing Room	21.44 × 12.86 m (70.3 × 42.2 ft) · 254 m² (2,734 sq ft)	120	70	180	72	300	40	30	Plan this room →
Empire Room	26.05 × 7.82 m (85.5 × 25.7 ft) · 222 m² (2,390 sq ft)	180	100	168	88	250	40	40	Plan this room →
Tower Suite	12.9 × 6.59 m (42.3 × 21.6 ft) · 57 m² (614 sq ft)	36	21	36	24	70	25	20	Plan this room →
Landmark I	—	21	—	10	—	15	10	—	Plan this room →
Landmark II	—	36	21	36	24	40	20	18	Plan this room →
Landmark III	—	36	21	36	24	40	20	18	Plan this room →

A dash means the venue does not publish that figure. 4 of 11 rooms have no published size, so those rooms open in the planner sized to fit their capacity. Confirm final numbers with the venue.

Frequently asked questions

How many event spaces does The Landmark London have?

11 event spaces are listed on this page.

How many guests can The Landmark London seat for dinner?

Up to 504 banquet-style in Grand Ballroom; Marble Ballroom seats 408, per the venue.

What is the largest theatre-style capacity at The Landmark London?

512 in Grand Ballroom, per the venue.

What is the largest room at The Landmark London by floor area?

Grand Ballroom, 610 m² (6,566 sq ft), 42.9 × 13.59 m (140.7 × 44.6 ft).

Sources

Every figure on this page comes from The Landmark London’s own website, read on 22 October 2026:

Official website: landmarklondon.co.uk
Capacities: landmarklondon.co.uk/wp-content/uploads/2025/09/Events-Rooms-Capacity-Chart-2025.pdf

Work at The Landmark London? to correct it and publish your own floor plans here — free.