Property taxes and real estate
There are 12 cantons in which property taxes are levied on houses, apartments, and other properties. In six of these cantons, property taxes are only levied by some municipalities. The terms used to describe property taxes varies between cantons. In every case, property taxes are levied on an annual basis.
Like wealth tax, property tax is a tax on the value of your property. But unlike wealth tax, you cannot deduct mortgage debt.
https://www.moneyland.ch/en/taxes-real-estate-property-switzerland-guide