The London Marriott Hotel Grosvenor Square

Whether hosting a reception for up to 1,000 guests or a board meeting for 12, our stylish event spaces, along with intuitive service, will set your occasion apart from the rest.

Our beautiful Westminster Ballroom (762 square meters) is one of London's largest pillar-free spaces. The Westminster Ballroom also has the flexibility to break into three separate conference areas to best meet your needs and is situated along side our Whitehall Reception Suite.

Additionally we host 4 Mayfair Meeting rooms which can open up into one larger space capable of holding 120 delegates.