For events that take place in a green space or recreational area, an informal application for a special permit must be submitted to the respective district office. Since public green spaces are seen as places for recreation and not as venues for events, approval is only possible in exceptional cases and in the case of special public interest. In principle, it is easier to obtain a special use permit on public streets and squares (see special use permit). Commercial use of green spaces and recreational areas is generally prohibited.
Since the respective district offices are responsible for the permits, the requirements for the applications differ slightly.
It is best to search for "Special uses in public green spaces and recreational areas" (in German: “Sondernutzungen in öffentlichen Grün- und Erholungsanlagen”) + the respective district.
As a rule, the application should be submitted at least 14 days before the start of the event. Depending on the scope, a fee of between €24 - €192 is charged; non-profit organisers can (partially) be exempted from the fees.