Offering elegance, flexibility and sheer quality, JW Marriott Grosvenor House London is an event venue and meeting destination of unrivalled luxury in the heart of Mayfair. Whether for a magical wedding reception at our Mayfair wedding venue, a glitzy award ceremony, or an important business conference, we can transform our meeting rooms in Mayfair to create the perfect setting for you and your guests.

The Great Room
Since 1929, the Great Room has welcomed royalty, presidents, actors and musicians for the most exclusive and lavish events of the London scene. One of Europe's largest and most impressive event spaces with a capacity of 2,000 guests to dine banquet style, the Great Room has always been the jewel in Grosvenor House’s crown.

The Ballroom
Our spectacular Art Deco-inspired Ballroom boasts original features dating back to 1929 and provides a perfect setting for celebrations, holding 1000 for receptions and 450 for a dinner dance. The exclusive Park Lane entrance offers a glamorous red-carpet arrival, coupled with a spacious interconnected foyer for lavish welcome receptions and all-night dancing.