Managing development and building works

Sustainable urban drainage

Sustainable drainage aims to mimic natural processes. Examples of sustainable drainage are:

  • ponds
  • green roofs
  • soakaways
  • swales

Sustainable drainage puts as much water as possible back into the ground to:

  • help maintain healthy aquifers
  • decrease the risk of flooding and drought 
  • improve water quality

Sustainable drainage approval body

As the Lead Local Flood Authority we assess drainage plans for new developments and redevelopments where they are major planning applications. Developers are not allowed to start work on drains until we have given approval. (This role was previously held by the Environment Agency.)

As the Lead Local Flood Authority we became statutory consultee on major planning applications which had surface water implications from 15 April 2015. This has superseded the Sustainable drainage Approving Body (SAB) duty originally included in the Flood and Water Management Act (2010) but had never been enacted.

Read more about assessing drainage on major applications and how to complete the drainage assessment form. 

Last Modified: 07/10/2020 20:32:03