Building law is created through the development plans. Their task is to prepare and guide the structural and other use of land in the urban area. They are a necessary prerequisite for the provision of new residential areas and for the establishment of businesses. Urban land-use plans must be drawn up on the legal basis of the Federal Building Code (BauGB).

The legally binding land-use plans of the City of Salzgitter are available for inspection in the "Binding land-use planning".