Searches for UK homes featuring air conditioning have more than doubled this summer, rising 104% year-on-year according to Rightmove, with 87% of buyers now telling the portal that cooling capacity influences their purchasing decisions. This is not a fleeting seasonal blip. It marks a structural shift in what British buyers expect from a home, and it carries significant implications for how developers design new stock, how landlords position existing portfolios, and how valuers price properties in a market that has historically treated cooling as an irrelevant afterthought compared with heating.