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The Flood and Water Management Act 2010 and Flood Risk Regulations 2009 have designated Unitary Authorities and County Councils as Lead Local Flood Authority (LLFA). LLFAs have responsibility for leading the co-ordination of local flood risk management in their respective administrative areas, ensuring that flood risk from all sources, including from surface runoff, groundwater and ordinary watercourses, is identified and managed as part of locally agreed plans and strategies.

The Surface Water Management Plan (SWMP) outlines the preferred surface water management strategy for Richmond and includes consideration of flooding from sewers, drains, groundwater and runoff from land, small watercourses and ditches that occur as a result of heavy rainfall.

An update to the SWMP created in 2011 was completed in December 2021. This incorporates updated surface water and flood zone mapping from the Environment Agency. It also incorporates information on local flood records, and aligns with national, regional and local recommendations for flood risk management.

SWMP report

SWMP appendices

Note: The SWMP report is a large document so may take some time to download depending on your internet connection. If you have problems downloading any of the documents, contact the Local Development Framework Team.


For further information, contact the Local Development Framework Team.

Telephone: 020 8891 1411

Updated: 14 March 2022

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