The property tax here serves to balance between the few who own and use a lot of land (or don’t) and those who make a lot of land usable for many people, whether they keep ownership and develop it and then rent out properties or simply divide and sell it, it doesn’t matter.
This is not the case here. Old buildings became slightly cheaper (<5%), new buildings or houses under 10 years old have tripled in price.It was to be expected. Those who have been overcharged for years with larger houses (over 220m2 according to the asset value method) or who have new houses will be somewhat relieved. Those with very old houses now pay more. That is only fair. It should only be based on the land and not on what is built on it. If you even need a property tax at all. And let's be honest. Nothing should be at risk because of 200-300 € more or less property tax. Otherwise, it's just a house of cards…