Experience 5-star service beyond compare at London Marriott Hotel Grosvenor Square. Perfectly situated in the upscale Mayfair neighborhood, minutes from world-class shopping, Hyde Park and iconic landmarks, the hotel rooms and suites are elegantly furnished and feature marble bathrooms, signature bedding and deluxe amenities. Home to one of the largest pillar-free ballrooms in London, here at the London Marriott Hotel Grosvenor Square each and every event is unique and the hotel provides the personalisation, expertise and tools required to create and deliver a memorable and successful event.