hempcrete extension & refurbishment, surrey
A beautiful energy efficient, breathable Hempcrete extension to a period property in Cobham. This stunning property looks out onto a wonderful wooded landscape, so particular attention was paid to maximise the full view of the beautiful trees and landscaped gardens.
The client required an extension that maximised views of the stunning garden & surrounding trees, including a living space, studio and utility/shower. This resulted in an imaginative design that incorporates unconventional glazed elements and a pond at the threshold of the sliding doors. The space is extremely well lit and integrates well with the existing rooms, without the need for extensive structural works.
Environmental credentials
The extension features breathable timber frame walls with hemp lime infill blocks and additional wood fibre insulation. The blocks give the walls more thermal mass than a conventional timber frame, helping to regulate the temperature within, where the large amounts of glazing could otherwise contribute to overheating.
The house is situated on an old brick kiln, near a mature forest, so innovative steel piles were selected for the foundations. This negated the need for large amounts of concrete and extensive excavations.
This energy efficient extension was built using hempcrete blocks, wood fibre insulation, breathable plasters & renders and no VOC paints and finishes.
