Researchers and built-environment experts discuss approaches for redesigning UK homes to cope with hotter conditions as the country faces ongoing heatwave risk. The latest guidance draws on academic testing of two neighbouring homes, where researchers evaluate which design and performance strategies help occupants stay cooler during extreme temperatures. The reporting also notes that the UK has regulatory requirements aimed at preventing overheating in new housing. Under building regulations introduced in 2022, new homes are assessed at the design stage for their likelihood of overheating. If the risk is judged to be high, architects and designers must adjust the building design to lower the likelihood of overheating. Together, the sources present a picture of both evidence-based research and compliance with planning rules. The focus is on improving thermal comfort in homes as heatwaves become more frequent, including through design choices verified before construction, and through real-world-style comparisons in study homes. The aim across accounts is to reduce heat stress indoors during hotter periods.