Bentinck Close, Regent’s Park

Rooftop extension to seven-storey 1930’s mansion block facing out over Regent’s Park and within the St.John’s Wood Conservation Area. Four large penthouse apartments are provided.

The single storey extension is set back to minimise visibility from the street and overshadowing of neighbours while providing generous new terraces and planted areas.

Client: Freshwater Group

Cost: £5.5 million

Status: Under construction

Team: Matter (as McDowell+Benedetti to stage 3), Michael Hadi Associates, Max Fordham, Vertica, EB7, BWC, MLM