The extension is conceived as a single element, an L-shaped roof and wall. Although dramatic, the choice of copper against the weathered original brick, means that this double height and unashamedly modern extension sits comfortably against the historic façade. The copper finish selected was pre-oxidised brown (darker version).
The two main materials selected, copper and basalt, are both used internally and externally, strongly linking the new interior of the house with its garden for the first time. Standing seam copper on the outside forms the roof and façade and this detail is repeated on the larger planter and a smaller screen. The ability to create crisp details allowed the architects to design both inside and outside as one. Copper used internally repeats the standing seam but this time as a cupboard door handle detail. Skilled contractors wrapped the doors (external and cupboards) in copper, carefully incorporating ironmongery and other details, including a flue-less fireplace in the basement drawing room.
naganjohnson architects completed a full interior fit out, designing furniture and suggesting artwork to complement the new and old elements of the house. This included polished copper light fittings (by Tom Dixon) in the dining room and small orange copper hinges & ironmongery, which continue the story of the architecture through to more intimate details.
The choice of Brown copper was an important factor in winning planning, Listed Building and Conservation Area consent for this extension. Seen from adjacent streets and buildings, the extension fits into the traditional landscape of brick buildings, yet from within the garden, the modernity of the copper, glass and basalt is apparent and sets the tone for a modern and welcoming garden. A copper-clad planter takes central place in the garden and the large Cornus controversa ‘Variegata’ it contains was craned onto the site with the glazing. In spring – the buds on the Cornus perfectly match the colour of the copper!
