The council’s current flood risk and drainage policy can be found in the Local Plan (Policy 32).

All local planning authorities are required to prepare a Strategic Flood Risk Assessment (SFRA) for their areas in order to assess the risk from flooding from all sources and as the basis for applying the ‘sequential’ and exceptions’ tests to potential development sites.

In September 2014, the Council jointly procured consultants to prepare an SFRA for each of the partner Boroughs located within the River Wandle catchment (Sutton, Croydon, Merton and Wandsworth). Sutton’s updated Level 1 SFRA was published in December 2015 and the Level 2 SFRA was published as part of the Local Plan evidence base in March 2017. Find out more on our Strategic flood risk assessment page.

Other important sources of local evidence on flood risk include: