One Berkeley Street Mayfair W1J Timeline News and progress updates from One Berkeley Street new development in Mayfair W1J Post a new milestone Unique retail opportunity at One Berkeley Unique retail opportunity - 1,700 sq ft of versatile retail space now available at One Berkeley opposite The Ritz hotel on Piccadilly, London W1.Right next to the... 27/06/2023 by Buildington The new building designed by David Adjaye at 70-72 Piccadilly has been granted planning permission. The 10 storey 6,546-square-metre development is situated opposite... 12/10/2015 by Buildington