After multiple severe heatwaves in a single summer, French residents are increasingly factoring high temperatures into their home hunts, realtors say, bumping up features such as shutters, air conditioning and indirect sunlight on their priority lists. READ ALSO: How to keep your home cool during France's heatwavesFor Leboncoin's marketing director Sophie Bourg, heatwaves are now "firmly recognised as a structural factor in housing choices" in France. Air conditioning, long disdained in France, is "no longer taboo at all", Jehanno said. Sellers have adapted accordingly, she added, placing greater emphasis in listings on features linked to summer comfort such as air conditioning and shutters. Such risks, he said, make it increasingly difficult for buyers "to plan ahead over the 10 to 20 years of a mortgage".