A recent spell of extreme heat has intensified debate over whether UK homes should be designed with built-in cooling systems, according to FT. Air conditioning remains uncommon in Britain, with fewer than 5% of homes equipped with it, reflecting a long-standing view that cooling is a luxury rather than a necessity. FT writes that current building standards favor passive methods of controlling indoor temperatures, such as insulation, shading, and natural ventilation. Developers generally prioritize these measures, arguing they are more energy-efficient and better aligned with environmental goals. Concerns about the cost of installation, higher electricity consumption, and pressure on the power grid have also limited the adoption of air conditioning in new developments. However, rising temperatures are challenging this approach. Critics argue that passive measures become less effective during severe heatwaves, particularly in modern, well-insulated buildings that can trap heat indoors. Climate experts have warned that a significant share of the UK’s housing stock may require some form of active cooling as temperatures continue to rise. Consumer attitudes appear to be shifting as hotter summers …