"Regressive" is a loaded term in this context. Council tax pays for services like the roads and the bins being taken out. Having an expensive house doesn't me

"Regressive" is a loaded term in this context. Council tax pays for services like the roads and the bins being taken out. Having an expensive house doesn't mean you use more of those. (It increases a bit up to a cap, because you probably do use them more if you have more money, but it obviously doesn't linearly scale). A flat in London might cost 5-10x a flat in the North, but both individuals use the bins and roads roughly the same amount so their council taxes are about the same.