Radisson Blu Hotel, London Mercer Street is a boutique haven at the heart of London's most vibrant district Covent Garden, Surrounded by independent stores, cafes and restaurants, the hotel's stylish decor is perfectly in keeping with the village feel of its home in Seven Dials. Mercer Street's 137 rooms and suites offer the perfect combination of modern comfort and welcoming, boutique feel. The hotel's 4 meeting rooms feature cutting-edge technology and catering for anything from 2-60 guests.