Evidence and research for planning policies

6. Flood Risk Evidence

Strategic Flood Risk Assessment

The Strategic Flood Risk Assessment (SFRA) provides a summary of the flood risk to the borough, taking account of flooding from all sources. The information contained in this document will be used to inform the location of future development.

The SFRA report should be read in conjunction with the flood maps provided below. These maps will be updated regularly as new mapping becomes available from the Environment Agency.

Please note: These flood maps are not sufficiently detailed to show the risk of flooding to an individual property or specific site. Please visit the Environment Agency website for more detailed information for use in site specific flood risk assessments.

Redhill Town Centre Strategic Flood Risk Assessment

In 2011, the Council published a strategic flood risk assessment specifically focused on Redhill Town Centre. This study considered the sources of flooding in the town centre in more detail and also carried out new integrated modeling of surface water and fluvial flooding in the town.

The model and resultant flood zone maps prepared through the study were accepted by the Environment Agency on 20 August 2010 and should be used for the purposes of any site specific flood risk assessments carried out within the town centre. Please contact the Planning Policy team at LDF@reigate-banstead.gov.uk to obtain mapping and flood level information (charges apply).

Core Strategy Sequential Test

To support the Core Strategy, the Council carried out a sequential test of the spatial strategy and key development locations. A supplementary paper was also prepared to take account of the revised EA Flood Mapping which was published after the original study.

The supporting site by site flood risk maps are available on request by contacting LDF@reigate-banstead.gov.uk.

Gatwick Sub-Region Water Cycle Study

In 2011, a joint study was prepared on behalf of Reigate & Banstead Borough Council, Crawley Borough Council, Mid Sussex District Council, Horsham District Council looking at water infrastructure and the water environment in the Gatwick area.