Montcalm Mayfair takes gala dinners, conferences, award evenings and weddings of up to 350 seated guests in its Grand Ballroom, a pillarless room with movable staging, and keeps smaller equipped rooms for meetings. The hotel stands at 2 Wallenberg Place in central London, a short walk from Marble Arch and Park Lane, and is the property previously listed as The Montcalm London Marble Arch.
Seminars and company events
The Grand Ballroom is what sets this hotel apart for business events in the West End. With no pillars, every seat has a clear line to the stage, and the staging can be moved to suit a keynote, a panel, a product launch or an awards ceremony. The hotel also offers further meeting rooms with presentation technology for board meetings, breakout sessions and interviews; their names and capacities are given on request. Montcalm Mayfair belongs to the Montcalm Collection, a group of London hotels that handles meeting and event requests through a central team, which helps when an event needs bedrooms or rooms across more than one property.
Weddings and receptions
The hotel markets the Grand Ballroom for wedding ceremonies, receptions and other celebrations. A room of this size in central London allows a seated wedding breakfast, speeches and dancing in one space, with guests able to stay in the same building and an easy walk to Hyde Park for photographs.
Rooms and capacities
The Grand Ballroom seats up to 350 guests for dinner, according to the hotel's own page, while the group's events page gives 320. Organizers should confirm the figure for their chosen layout. The room is described as flexible, so it can be set with banquet rounds, theater rows or a cabaret plan facing a stage.
Accommodation
Bedrooms are on site, so speakers, delegates and wedding guests can sleep in the building where the event takes place. The hotel also has the YĀTRĀ Signature Spa, useful for a quiet hour between sessions or the morning after a celebration.
Catering
The hotel's restaurant and bar is Lilli by Akira Back, the only London restaurant of the Michelin-starred chef Akira Back. It works for a speakers' dinner the night before a conference, a team evening or an informal gathering once the program ends. Menus for ballroom events are arranged with the hotel's events team.
History and setting
The building is a Grade II listed crescent with Georgian roots, set in a quiet corner between Oxford Street and Hyde Park, on the edge of Marylebone and Mayfair. According to the hotel, the site once lay within an ancient forest. The location keeps guests close to the shops of Oxford Street, the open space of Hyde Park and the restaurants of Mayfair, which is practical for an evening program or a free afternoon.
Getting there
Marble Arch station, on the Central line, is a few minutes away on foot. Paddington station, with the Heathrow Express and the Elizabeth line, is about a mile to the west, which makes the hotel convenient for international delegates arriving through Heathrow.





