Well that is a different setup that what I mention but thanks for indeed highlighting how they are not the same. FWIW houses in Tuscany with very strict rules,

Well that is a different setup that what I mention but thanks for indeed highlighting how they are not the same. FWIW houses in Tuscany with very strict rules, e.g. you don't even get to pick the color of your own house, manage to get the entire place setup with full-size AC it's feasible. What's not feasible is trying to ignore laws on what a building must look like but that has nothing to do with air conditioning. For example if Belgium if you has is classified as notable (most old houses are) then you need a permit even for the window frame.