I see. Perhaps then 'Property tax'? I found the following definition:
A property tax is an ad valorem levy on the value of property that the owner is required to pay. The tax is levied by the governing authority of the jurisdiction in which the property is located; it may be paid to a national government, a federated state or a municipality.
Is die Grundsteuer the same thing as Mehrwertabschöpfung?
Thanks again for all the help!