Water law permit - building in flood areas
Areas Construction Flood Floodplain Hachinger Bach Mental Protection Würm builders environmental

# Water law permit - building in flood areas

## Summary

A permit under water law is required for the erection or extension of structures in an identified and mapped floodplain.
## Responsible Department

RKU
## Required Documents

All documents are required at least in **quadruplicate** on paper and also digitally at wasserrecht.rku@muenchen.de

* Informal application
* Explanatory report with information on the planned project and detailed concept for simultaneous equalisation of the retention area (retention area)
* Open space design plan with drawing of the flood protection measures/retention area compensation
* General site plan

Depending on the individual case, further documents may be required in accordance with the WPBV (Ordinance on Plans and Supplements in Water Law Proceedings).

## Fee Range

Up to 0.6 per cent of the construction sum, depending on the work involved.

## Processing Time

The processing time is four weeks to three months, depending on the complexity of the case.

## Legal Basis

Sections 76 to 78 ff of the Federal Water Act (WHG)  

Articles 46 and 47 of the Bavarian Water Act (BayWG)  

Floodplain ordinances

## Further Links

* [Map with address search](https://geoportal.muenchen.de/portal/umwelt/?Map/layerIds=851e75b3-b26e-4e19-b3fe-682abb034756,rgu:sicherung,rgu:festsetzung&visibility=true,true,true&transparency=0,0,0&Map/center=[691938.9594410365,5336262.511374331]&Map/zoomLevel=4)
* [Further information on the floodplains in the city of Munich](https://stadt.muenchen.de/infos/ueberschwemmungsgebiete.html)
* [State Office for the Environment](https://www.lfu.bayern.de/wasser/hw_ue_gebiete/index.htm)

## Keywords

* Areas
* Construction
* Flood
* Floodplain
* Hachinger Bach
* Mental
* Protection
* Würm
* builders
* environmental
