Shortly after the official announcement that the air base was to be closed down at the Fürstenfeldbruck site, the town council decided to initiate an urban development measure pursuant to §§ 165 et seqq. Federal Building Code (BauGB) on 29th November 2011.
The urban development measure is an instrument in special urban development legislation. It is intended to meet the increased need for residential and commercial spaces, enable the establishment of communal and public facilities and prepare disused military and railway land for reutilization. Drawing up a preliminary land‐use plan will also entail planning and financial implications. In the light of a later acquisition, it is crucial for the municipality that the value of the property is set at a value which is unaffected by development (also called original value). Moreover, by initiating a preparatory study, the municipality has at its disposal land law instruments such as the development freeze or the statutory preemptive right which enable the municipality to implement its ideas for urban development in a conceptually cohesive and quicker manner.
A preparatory study is also crucial when it comes to a formal determination of a development area and in terms of potential funding. Assessment criteria for the planned urban development are to be gained from it. A cost and financing overview is being prepared and a concept for measures is being drawn up. During the further procedure, the preparatory study also provides a basis for the municipality being able to adopt urban planning statutes and, as a result, having at its disposal the instruments of special urban planning legislation.
In July 2012, a working group at the Technische Universität München (Technical University of Munich (TUM)) with the participation of the Chair for Sustainable Urban and Rural Development, Department of Urban Structure and Transport Planning and the Chair for Landscape Architecture and Industrial Landscape were commissioned to draft preparatory studies for the air base site.