Mayfair Townhouses
Reorganisation and decarbonisation of a pair of Grade II listed townhouses
Location: Mayfair, Westminster, London
, UK
Status: Planning and listed building consent granted
Service: Architecture, Conservation
Area: 1,125 m² / 12,100 ft²
2020–26
This pair of Grade II listed 1890s townhouses in Mayfair was built back to front, with the principal rooms facing north over Mount Street Gardens. For a long-standing resident who now owns the whole building, we have secured planning and listed building consent to reorganise its seven flats and replace the shared gas boiler with air source heat pumps. Four heat pumps on the roof feed each flat through the existing chimney breasts. A new communal stair brings daylight into a long-dark core, and some divided flats are joined back together so each home regains the scale and light of its principal rooms.
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The relocated lift opens directly into the flats. Windows are reinstated as single glazing with laminated acoustic glass to keep the historic fenestration, with secondary glazing behind cutting heat loss and noise. The ground floor is joined to the basement below and the top two floors to each other.
Process
Full redesign of vertical circulation to take advantage of an existing series of windows currently blocked by the lift
Historic research and existing photos
Drawings
174.
Mayfair Townhouses
Year:
2020–26
Restrictions: Grade II listed, Conservation area
CF team: Francis Fawcett, Oliver Cooke, Andy Gibbs
Structures: Philip Cooper (CAR Ltd.)
Acoustics & Sustainability: Max Fordham LLP
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