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Does W7 flood?

Yes — parts of the W7 district carry real flood risk: 8 of its 42 at-risk postcodes reach the Environment Agency's High likelihood band. The W7 postcode district covers Hanwell Broadway, North Hanwell, Norwood Green, close to Greenford, Southall, Brentford, and surrounding villages in parts of Greater London and Surrey.

42 postcodes in the W7 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 8 high, 10 medium, 24 low. A postcode not listed here has no properties in any recorded risk band (which is good news, but never proof it cannot flood).

Free preview first · full report £19

Which W7 postcodes are at risk?

W7 1BS up to High W7 2PE up to High W7 2PF up to High W7 2PH up to High W7 2PJ up to High W7 2PX up to High W7 2PY up to High W7 2QD up to High W7 1BY up to Medium W7 1DA up to Medium W7 1DD up to Medium W7 2BD up to Medium W7 2HF up to Medium W7 2PA up to Medium W7 2PP up to Medium W7 2QA up to Medium W7 3TD up to Medium W7 3XP up to Medium W7 1BP up to Low W7 1BT up to Low W7 1BU up to Low W7 2BA up to Low W7 2NJ up to Low W7 2PB up to Low W7 2PL up to Low W7 2PN up to Low W7 2PU up to Low W7 2QL up to Low W7 2QN up to Low W7 3AR up to Low W7 3AS up to Low W7 3BP up to Low W7 3DJ up to Low W7 3DT up to Low W7 3DW up to Low W7 3GQ up to Low W7 3JJ up to Low W7 3NB up to Low W7 3QZ up to Low W7 3RA up to Low W7 3RG up to Low W7 3RT up to Low

Rivers and flooding history near W7

The rivers that matter here, each monitored live on FloodRadar:

1,357 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (22 at warning level or above), most recently 29 September 2026. Warnings cover flood areas, not individual addresses.

Recorded flood extents near the district (Environment Agency record):

Records, not floods: no outline on the record is not evidence a place has not flooded.

🏠 Buying or renting in W7? The full property flood-risk report covers any postcode here — the official likelihood band, every recorded flood nearby with distances, warning history year by year, how the local rivers behave, and an insurance outlook, print-ready for £19. See what's in the report →

Flood risk in nearby postcode districts

W6 W5 W4 W12 W13

Band = the worst likelihood band of any property in that postcode (EA Risk of Flooding from Rivers & Sea, defence-adjusted, area-level). Check any postcode in detail — or get the full £19 property report — at the property flood-risk report. © Environment Agency copyright and/or database right 2025. All rights reserved. Some features of this map are based on digital spatial data from the Centre for Ecology & Hydrology, © NERC (CEH). © Crown Copyright and Database Rights 2025 OS AC0000807064. This product is produced in part from PAF® and Multiple Residence Data, the copyright in which is owned by Royal Mail Group Limited and/or Royal Mail Group plc. All rights reserved. Licence number AC0000807064.