The London Marriott Hotel Grosvenor Square

Representing nearly half of our venue's total event space, the Westminster Ballroom totals 762 square meters (8,216 square feet) and is one of London's largest pillar-free spaces. The ballroom has the flexibility to break into three separate conference areas to best meet your needs and is just one of 15 meeting rooms available. Whether hosting a reception for up to 1,000 guests or a board meeting for 12, our stylish, high-tech spaces, complimented by intuitive service, will set your occasion apart from the rest.