There are extra drainage requirements for major projects involving either:
- 10 or more properties
- 1,000 square metres of non-residential floor space
We require these projects to include plans for Sustainable Urban Drainage Systems (SuDS). Effective SuDS manage surface water drainage and run-off. Your plans must show:
- How and where you will build SuDS
- How you will maintain SuDS
To meet drainage requirements, submit a Surface Water Drainage form with your application.
You can find more information about drainage requirements here: