In Nice, we all have illegal air conditioners, usually mounted on rear facades that no one can see. Even the notaire said her air conditioner was illegal

. It's apparently all good if you can prove it was there for six years? Let's hope so.
In London, I'm in a conservation area. Despite being a new contemporary home built in 2025 that looks nothing like the rest of the Edwardian homes in the area, the rules apply. I have to apply for permission, which would either be denied or drawn out for a very long due to net zero rules. Which is the same reason the developer couldn't install a/c when building the house and now leaves me with a complicated retrofit job on a brand new house, as opposed to a super-easy one

.
Air conditioning is only allowed as a last resort, and you need to go through a ridiculous process of proving it's absolutely necessary. It sometimes helps if you live under a flight path, as I do. You are allowed to use "mechanical ventilation" if noise in bedrooms cannot be kept under 48 db with the window open, but I would need a sound test to prove that

. And I'm on a secondary flight path and only get planes 1/3 of the time. And they may try to make me prove other ventilation methods would work. Plus, the room I need air conditioned is a living room.
The truly stupid thing is that the air conditioner I'm having installed is an A++ energy efficient one that works well, is quiet, and won't disturb anyone.
The alternative is a portable air conditioner -- which the council cannot ban. Energy inefficient, noisy, and doesn't work well with hoses hanging out of casement windows (sash windows were effectively banned here due to more net-zero nonsense).
I see these hoses hanging out of fully open windows all throughout my neighbourhood, and I think this is another misguided energy policy that will 1) kill people, while 2) resulting in more energy use. I'm sure the next government will try to ban portable a/c (while sitting in air conditioned offices).
Apparently, some of these super-energy efficient triple glazed windows have been exploding in the heat. Ah, yet another thing to worry about.

My energy efficient heat pump was already fried by lightning in the freak hail and lightning storm we had. (Fortunately, replaced under warranty.)