Strategic flood risk assessment

The SFRA brings together recommendations for drainage, emergency planning and development control and sets out recommendations for the development of policy within the Borough Local Plan. The SFRA includes a series of maps which define areas of flooding according to risk and indicate the borough's historic flooding, watercourses and topography. A flood hazard map is also included which measures depth and velocity of flooding across the borough.

The SFRA is reviewed on a regular basis in light of improved information regarding flood risk within the borough, and/or change in government policy. A review of the SFRA was undertaken in 2008 and published in 2009 triggered by the publication of revised flood zones for the River Thames. In February 2013 WSP was commissioned to carry out an update to the SFRA following updated Lower Thames Modelling and the publication of the National Planning Policy Framework and the Technical Guidance Note. The updated SFRA consists of a revised SFRA Level 1 report and an Increased Scope and Sequential Testing of Sites report, both published in January 2014.  As part of the new Borough Local Plan preparation the SFRA Level 1 has been updated in 2017 along with the sequential testing and SFRA Level 2.

View the latest SFRA level 1 report and maps -  published in June 2017

View the latest SFRA level 2 report and maps (plus Sequential Test and Exception Test) -  published in April 2018