Marriott Grosvenor Square
Venue Info
London Marriott Hotel Grosvenor Square is an impressive five-star hotel in the heart of Mayfair, offering extensive facilities for conferences, meetings, awards ceremonies, private dining, receptions and corporate events. Its prestigious central London location, close to Oxford Street and Hyde Park, makes it particularly convenient for both UK and international delegates.
The hotel’s centrepiece is the Westminster Ballroom, one of London’s largest pillar-free hotel ballrooms. It can accommodate up to 900 delegates theatre-style, 580 for a banquet or 1,000 for a standing reception. The ballroom can also be divided into three separate spaces – Belgrave, Chester and Eaton, providing useful flexibility for conferences requiring breakout rooms or different event formats.

Alongside the ballroom are a range of smaller meeting and event rooms, including the Whitehall and Mayfair suites. The recently refurbished Mayfair meeting rooms offer flexible configurations, natural daylight in selected rooms and a dedicated breakout area for networking and refreshment breaks.
Key Facilities
- 11 event rooms
- Largest capacity: 1,000 guests
- Westminster Ballroom for up to 900 theatre-style
- Banqueting for up to 580 guests
- Flexible ballroom divisions and breakout spaces
- Recently refurbished Mayfair meeting rooms
- Dedicated networking and breakout areas
- High-speed Wi-Fi
- Professional AV facilities
- Videoconferencing and teleconferencing
- PA systems, microphones and portable staging
- Dedicated event and technical support
- Conference and event catering
- Luxury guest accommodation
- M Club Lounge
- Gordon Ramsay Bar & Grill
- Lucky Cat by Gordon Ramsay
- The Luggage Room cocktail bar
- Fitness centre
- Green Key sustainability certification
Address: Grosvenor Square, Duke Street, Central London, W1K 6JP
Nearest station: Bond Street – just a few minutes’ walk, providing Underground and Elizabeth line connections.
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