Guidance Print Reducing the causes and impacts of flooding

Why should priority be given to the use of sustainable drainage systems?

Paragraph: 051 Reference ID: 7-051-20140306

Sustainable drainage systems are designed to control surface water run off close to where it falls and mimic natural drainage as closely as possible.  Sustainable drainage systems also provide opportunities (in line with other policies in the National Planning Policy Framework) to:

  • reduce the causes and impacts of flooding;
  • remove pollutants from urban run-off at source;
  • combine water management with green space with benefits for amenity, recreation and wildlife.

Further guidance on the planning considerations on sustainable drainage in relation to water supply and water quality are here and here.

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