The Penthouse at The Ada Building, 15 Berkeley Street



The Penthouse covers the brand new 7th and 8th floors at 15 Berkeley Street. The floors are interconnected with a dedicated staircase for complete

privacy, as well as direct lift access and are offered in an open plan condition ready to be fitted to an occupiers taste. The Penthouse benefits from a private 700 sq ft rooftop terrace with unrivalled panoramic skyline views of Mayfair, St. James’s and beyond.

15 Berkeley Street is connected to the adjacent 35 Dover Street via the basement levels. The two buildings were historically home to the exclusive women-only Empress Club. Purpose built for the opening of the club in 1887 and inaugurated by Queen Victoria, the Empress Club marked a new era in the history of ladies’ clubs.

15 Berkeley Street has significantly enhanced environmental performance, with a BREAAM Excellent Rating and an EPC A.

Located in the heart of Mayfair, 15 Berkeley Street is within short walking distance of Green Park Station and nearby attractions like Berkeley Square. This coveted area is renowned for its selection of top-tier restaurants and luxury retail.


  • 700 sq ft private roof terrace with panoramic views of Central
  • Premium fitted and furnished workspace options available
  • Comprehensively redesigned to the highest of standards by Stiff + Trevillion
  • New 4-person lift
  • Full fibre connectivity with 1GB dedicated bandwidth with Wifi per floor
  • Heating and cooling provided by new high efficiency wall mounted VRV units
  • Substantially refurbished and upgraded existing building, saving on embodied carbon emissions
  • Occupational density 1:10 (1:8 may be possible subject to requirements)
  • EPC 'A'
  • BREEAM Excellent
  • 1 x shower and 4 x WCs
Name/FloorSq FtRent (psf)Rates (psf)Service Charge (psf)Condition (psf)Status