The replacement volume sits exactly on the same footprint as the original conservatory and does not protrude beyond the existing outline.The new extension has a flat roof instead of a sloped and sits slightly higher than the original, achieving internally a continuous ceiling level. The extension is clearly subordinate to the original building and has a minimal visual impact on its external appearance.

The proposal seeks to emphasize on the contemporary nature of the addition whilst complimenting its historical context. For that reason the addition is rendered inside and out with the same limestone render system in a light grey tone. A long rooflight defines the boundary between the original shell and the new addition. Full width cast concrete steps underline the rear elevation and connect the extension with the existing brick elevation. A linear corten planter runs along the step, screening a basement rooflight that is awkwardly protruding above the garden level.

Internally the existing wall of the main house is stripped back to the original bare brick and a central monolithic island becomes the main element of the kitchen. The majority of the kitchen cabinetry and worktop is concealed behind a sliding door system, when not in use.

Photographer: Nick Guttridge