Situated in the heart of fashionable Mayfair, Millennium Hotel London Mayfair combines traditional charm and luxury with picturesque views overlooking Grosvenor Square. Our hotel has much to offer, including 336 elegant guest rooms, 10 function rooms, as well as 24-hour room and concierge service. Enjoy great Italian cuisine at our 3 AA Rosettes restaurant and bar AVISTA, delicious drinks at Pine Bar, the only remaining piano bar in Mayfair with live music in the evenings.Sightseeing is easy, with numerous attractions and shopping destinations close by. Both the historical Grosvenor Square Gardens and Regent Street are just minutes away. Welcome to Millennium Hotel London Mayfair.Book here for our Best Price Guarantee promise. Earn and spend loyalty points on all qualifying stays. The level of points, benefits and privileges are subject to availability and may vary at certain participating hotels.