Montcalm Mayfair
/ About
Montcalm Mayfair occupies a Grade II listed Georgian crescent on Wallenberg Place, a short walk north of Marble Arch. The hotel traded for decades as The Montcalm London Marble Arch, closed in March 2023 and reopened in April 2025 under Marriott's Autograph Collection after a two-year renovation. Holland Harvey led the architecture; Studio Est took the public rooms, the restaurant, the bar and the Grand Ballroom, and Studio Mica the 151 bedrooms and suites. The design runs on a garden theme, which reads as painted ceilings, botanical marquetry and a lot of planting rather than as pastiche.
The arrival hall is the room that sets the register: fluted columns, a chequer-set stone floor and a plaster relief behind the reception desk. Lilli by Akira Back is the hotel's restaurant and its only London outpost, serving Korean-inspired cooking with Japanese technique and British produce; its bar sits under a ceiling mural by Will Foster. Bloom, the private dining room off the restaurant, takes 14 at one table between lit bookcases. Downstairs, the YATRA Signature Spa holds four treatment rooms, a plunge pool, a jacuzzi, an infrared sauna and a fitness studio.
For events the building is unusually well equipped for its size. The pillarless Grand Ballroom runs 400 square metres and takes 600 for a reception or 350 seated at round tables, and it subdivides into the Park Lane, Marble Arch and Hyde Park Suites when a smaller room is wanted. The Library holds 70 standing, the restaurant the same and the bar 150. An in-house events team runs the floor, catering is made to order and the hotel publishes no music or licensing policy, so amplified sound is a conversation to have with them directly.
/ Rooms Available
Grand Ballroom
PrivateThe hotel's headline room and a pillarless 400 square metre floor, banked with crystal-drop light fittings and set behind its own doors. It takes 600 for a reception, 350 at round tables and 450 in theatre rows, and it subdivides into three suites when a smaller room is wanted.
Main Reception Area
Semi PrivateThe 98 square metre pre-function space serving the ballroom floor, used for drinks receptions of up to 250 or seated dinners for 80.
Park Lane Suite
PrivateThe largest of the Grand Ballroom's three sections at 160 square metres, taking 250 standing or 120 at round tables behind its own air wall.
Reception Area 2
Semi PrivateA second 90 square metre reception space on the events floor, taking 250 standing.
Hyde Park Suite
PrivateThe third ballroom section, also 120 square metres, taking 175 standing or 80 seated at rounds.
Marble Arch Suite
PrivateA 120 square metre section of the Grand Ballroom, taking 175 standing or 80 seated at rounds.
Lilli by Akira Back Bar
Exclusive HireThe hotel's cocktail bar, under a ceiling mural by the artist Will Foster, with a marble counter, marquetry panelling and burnt-orange stools. It takes 150 for a standing reception.
Lilli by Akira Back Restaurant
Exclusive HireThe 114 square metre restaurant floor, in deep greens and reds under a long oval light fitting, available for exclusive hire at 70 standing.
The Library
PrivateA 95 square metre ground-floor room of low chairs, framed pictures and shelved alcoves, taking 70 for a reception. The hotel offers it alongside the ballroom for social events.
Mayfair Suite
PrivateA 40 square metre room off the events floor, taking 40 standing or 30 at rounds.
Private Dining Room
PrivateA 30 square metre dining room on the events floor, seating 22 at rounds or 16 around one table, and taking 30 standing.
Bloom Private Dining Room
PrivateThe restaurant's own private room, seating 14 at a single timber table between lit bookcases, under a hand-painted ceiling. It runs the full Lilli by Akira Back menu with dedicated service.
Syndicate / Breakout
PrivateA 30 square metre breakout room seating 10 in conference layout, taken alongside the larger suites.
/ Perfect For
/ Features
AV Equipment
- – PA System
- – Microphone
- – Projector
- – Stage
Catering
- – In-House Luxury Dining
- – Bespoke Menus
Venue Specs
- – Dedicated Events Team
- – High-Speed Wi-Fi
/ Getting Here
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