14/06/2026
Two weeks in and great progress on site with the retrofit of this 1960s extension, which was built using an unusual combination of predominantly timber-framed construction with cavity brick end gable walls.
Rather than demolishing and rebuilding, we chose to retain the existing structure, strip it back, upgrade the building fabric and install a completely new insulated envelope and warm roof. The original construction presented a number of challenges, (including 7 metres of single glazing holding up the roof!), but also a fantastic opportunity to reuse what was already there and significantly improve its performance.
The transformation is already taking shape, with the new structure, breather membrane and cladding build-up progressing rapidly. Parts of the north-facing garden elevation have been infilled to reduce heat loss and improve the overall thermal performance of the building.
Next up is completion of the new warm roof and installation of the triple-glazed windows.
Projects like this demonstrate how thoughtful retrofit can extend the life of existing buildings while reducing waste, retaining embodied carbon and delivering a more comfortable, energy-efficient home.