A floodplain is the area that would naturally be affected by flooding if a river rises above its banks.
We take the risk of flooding into account when assessing whether to grant planning permission for development.
Please check the Environment Agency's “Am I at risk of flooding?” web link for flood risk.
The Environment Agency provide searchable maps and information on:
Risk of flooding
Flood warning areas
Possible impact on insurance
Other sources of flooding
Online flood warning service
Contact us
E-mail: planning@hounslow.gov.uk
Tel: 020 8583 2000
Borough Planning Department
London Borough of Hounslow
Civic Centre
Lampton Road
Hounslow
TW3 4DN