20 Balderton Street Mayfair W1K Timeline News and progress updates from 20 Balderton Street new development in Mayfair W1K Post a new milestone Development completed Grosvenor Britain & Ireland have completed the redevelopment of 20 Balderton Street in Mayfair, London W1. The building offers 27,500 sqft of newly refurbished Grade A... 30/09/2021 by Buildington
