Grosvenor House London

Sitting on Park Lane since 1929, JW Marriott Grosvenor House London is a five-star Mayfair landmark with 496 guest rooms and suites, each featuring marble bathrooms, pillowtop beds, and views stretching over Hyde Park. The building was originally the London residence of the Dukes of Westminster and Gloucester, rebuilt as a hotel by architects L. Rome Guthrie and Sir Edwin Lutyens. The Great Room and Art Deco Ballroom have hosted the BAFTAs, the Pride of Britain Awards, and The Royal Caledonian Ball. Dining options include the JW Steakhouse, award-winning Afternoon Tea in the Park Room, and 300 varieties of bourbon at the Bourbon Bar.

The hotel offers facilities for small to very large conferences, groups, and events, with 61,354 square feet of event space. The Great Room is one of Europe’s largest hotel ballrooms, seating up to 2,000 guests for a dinner. The Art Deco-inspired Ballroom covers 9,687 square feet, holds 1,000 for receptions, and seats 550 for a formal dinner. The Great Room, Ballroom, and 29 meeting rooms within 86 Park Lane and Mount Street cover the full range of event formats, with 86 Park Lane featuring its own dedicated kitchen for banqueting.

Amenities

• 496 individually furnished rooms with 24-hour room service, pillow menus, air conditioning, and separate sitting areas
• JW Steakhouse, Park Room Afternoon Tea, and Bourbon Bar on-site
• Modern fitness suite and Executive Lounge for qualifying guests
• Business center, same-day dry cleaning, on-site laundry, and hair salon
• Complimentary Wi-Fi, 24-hour front desk, air conditioning, and smoke-free throughout
• Green Key certified (Foundation for Environmental Education) with LED lighting, eco-friendly toiletries, and comprehensive recycling and food waste policies

Event Facilities

• 61,354 square feet of total event space
• The Great Room: capacity for up to 2,000 guests for dinner, one of Europe’s largest hotel ballrooms
• The Ballroom: 9,687 sq ft, Art Deco features from 1929, 1,000 standing / 550 seated
• Ballroom includes a dedicated Park Lane entrance with a red-carpet arrival foyer for receptions
• 86 Park Lane adjoining suite: 20 versatile event spaces, including 5 medium suites for 100–400 guests and 8 rooms for 40–80 guests
• In-house catering from a dedicated kitchen at 86 Park Lane; rooms configurable as cabaret, boardroom, theatre, U-shape, or banquet

Local Attractions

• Hyde Park, directly opposite the hotel on Park Lane
• Buckingham Palace, approximately 10 minutes on foot
• Oxford Street and Bond Street shopping, within walking distance
• Victoria and Albert Museum, Natural History Museum, and Science Museum, all reachable from Mayfair
• West End theatre district, a short cab or tube ride away
• Hyde Park Corner and Marble Arch Underground stations within walking distance; Paddington Station 1.2 miles away

With 496 rooms and more than 61,000 square feet of event space, the JW Marriott Grosvenor House London handles large corporate room blocks, multi-day conferences, gala dinners, and wedding receptions under one address. The venue accommodates up to 2,000 guests for a standing reception, making it one of the most capable hotel event properties in the city for groups of any size. Engine customers planning high-attendance conventions, incentive programs, or prestige corporate events will find the scale, on-site catering, and Mayfair location consistently aligned with that brief.