Fraser Bond are the leading lettings and property management agents for Mayfair Chambers - London W1K. Mayfair Chambers is a residential building in Mayfair, London W1. Six high quality new build apartments of 1,700 sq. ft. each. The property is located on the corner of Grosvenor Hill and Broadbent Street in Mayfair. Source: - www.mayfairchambers.com.