Flood risk · Gatwick

Flood risk for Gatwick

Indicative risk for the kilometre square around the centre, from the Environment Agency’s national flood risk assessment. Always check a specific property address on the official map before buying or building.

River & sea flooding

Very low

High

0.9%

Medium

0.1%

Low

0.5%

Very low

19.5%

Surface water flooding

Low

High

Medium

0.6%

Low

3.4%

Nearest watercourse

Afon Hafren

A tidal river, 1,434 m from the centre of Gatwick

For a property-specific flood risk check, use the official Environment Agency service at check-long-term-flood-risk.service.gov.uk.

Environment Agency National Flood Risk Assessment (NaFRA2, January 2025): the level shown is the highest risk that applies to at least 5% of the 1 km square centred on Gatwick; bars show each level’s share of that square. Nearest named watercourse from OS Open Rivers. Contains Environment Agency and Ordnance Survey data, Open Government Licence.