The function of urban land use planning [Bauleitplanung]is to prepare and control the use of land within a municipality...
Urban land use plans comprise the preparatory land use plan [Flächennutzungsplan]and the legally binding land use plan [Bebauungsplan].

from the first sentences of the official translation (Federal Ministry of Transport, Building and Urban Affairs) of the German Federal Building Code [BauGB], 2003

Bauleitplanung = urban land use planning
Stadtplanung = Town Planning
Flächennutzungsplanung, allgemein = land use planning
Flächennutzungsplan, laut Gesetz = preparatory land use plan
Bebuungsplan = legally binding land use plan