Flächennutzungsplan

If you want to know whether your property could be used as a building plot at all, you should take a look at your municipality's land use plan.

The land use plan is the preparatory urban land-use plan (urban development framework plan) of the municipality. It contains the urban development uses desired by the planning municipality and differentiated for the individual areas. For example, residential areas, commercial building areas, supply areas, areas for public use, traffic areas, green areas, forest areas and agricultural land.

The land-use plan does not have any direct legal effect vis-à-vis citizens. No legal claims, in particular the claim to a building permit for a specific property, can be derived from his drawings and textual representations. However, it represents a binding programme for the administration and other authorities.

An indirect concern arises from the fact that development plans, which contain the legally binding determinations for all citizens, are to be developed from the representations of the land use plan.
In addition, citizens are indirectly affected by approvals of projects in the "outdoor area" pursuant to § 35 of the Building Code (BauGB), because representations of the land use plan contradicting the construction projects would have to be countered as "impairment of public interests".

The land-use plan is drawn up by the municipality and requires approval by the higher administrative authority.
For more information, you can contact the planning office of your municipality.