Fraser Bond are the leading lettings and property management agents for 14 Grosvenor Street - London W1K. 14 Grosvenor Street is an office building in Mayfair, London W1. Located on the north side of the street. 2020 March - Leasehold property sold for £14,000,000. 2008 November - The existing Victorian townhouse (built 1852-3) was substantially damaged by the construction of the building next door and had to be demolished. Planning permission was granted for an office scheme at 14 Grosvenor Street and 14 Brook's Mews: Demolition of No. 14 Grosvenor Street and redevelopment to provide a five-storey.