Fraser Bond are the leading lettings and property management agents for 38 Berkeley Square - London W1J. 38 Berkeley Square is an 85,000 sq ft office development on Berkeley Square in Mayfair, London W1. Hanover Green Retail have been instructed as sole letting agents on a 9,000 sq. ft retail space at ground and lower ground levels. The building, formerly known as Berger House, is owned by Astrea Asset Management’s Off-Shore client. Prior to the redevelopment, the office building is arranged over the basement, ground and eight upper floors. 2021 - Expected start of construction. 2020 April -.