Even now planners are forcing people to build horrible ovens that make no accounting for heat. The planners in Ireland laughed when I talked about over heating in our self built house due to lack of eaves.

People don't value design that cools. Most all the spanish style houses you see in California, if you go back to photos from when they were built in the 1920s they all had awnings over all the windows. Those awnings are basically extinct now. Some people are even painting their buildings dark colors. They will chop down shade trees too in a quest for "natural light" aka heat they are now mitigating with a noisy central AC the whole neighborhood gets to listen to now. No one understands cross breeze and opening windows either. Just run up the AC.

Being done here too (not Ireland): Right now, councils are approving, and builders are building, apartments/houses that are big square boxes with no eaves or shading, black synthetic cladding, and windows with safety stays that only allow them to open about 8cm so almost no cooling possible. The upper floors of these units are essentially uninhabitable during summer.