Designing a British House for 35°C Summers AND -5°C Winters
Designing a British House for 35°C Summers AND -5°C Winters The British house of the future needs to keep heat out in August — and keep it in during January For generations, the central challenge of British house design was fairly straightforward: how do we keep warm? We insulated lofts, fitted double glazing, sealed draughts and installed increasingly efficient heating systems. Much of that was sensible, and it remains sensible. But the problem is changing. The Met Office reported in July 2026 that in parts of south-east England we are increasingly coming to expect temperatures around 35°C during hot spells . The most recent decade, 2016–2025, was 1.33°C warmer than 1961–1990, while the hottest day of the year has warmed by more than 4.5°C across parts of south-east and eastern England. Yet Britain has not suddenly become southern Spain. We can still wake to frost, ice, freezing fog and temperatures below zero in winter. We still need heating. We still need insulation. We...