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Does HA0 flood?

Yes — parts of the HA0 district carry real flood risk: 17 of its 55 at-risk postcodes reach the Environment Agency's High likelihood band. The HA0 postcode district covers Alperton, close to Willesden, Wembley, Greenford, and surrounding villages in parts of England and Hertfordshire.

55 postcodes in the HA0 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 17 high, 9 medium, 29 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 HA0 postcodes are at risk?

HA0 1LJ up to High HA0 1PR up to High HA0 2DJ up to High HA0 4AE up to High HA0 4AN up to High HA0 4AR up to High HA0 4AT up to High HA0 4AU up to High HA0 4AY up to High HA0 4BA up to High HA0 4DB up to High HA0 4DN up to High HA0 4TL up to High HA0 4TQ up to High HA0 4TW up to High HA0 4TX up to High HA0 4YG up to High HA0 1JF up to Medium HA0 1JG up to Medium HA0 1LL up to Medium HA0 1LN up to Medium HA0 4DR up to Medium HA0 4DX up to Medium HA0 4DZ up to Medium HA0 4TH up to Medium HA0 4TY up to Medium HA0 1DX up to Low HA0 1HX up to Low HA0 1LP up to Low HA0 1LR up to Low HA0 1LT up to Low HA0 1LU up to Low HA0 1LW up to Low HA0 1LX up to Low HA0 1LY up to Low HA0 1LZ up to Low HA0 1NA up to Low HA0 1NB up to Low HA0 1ND up to Low HA0 1NE up to Low HA0 1NF up to Low HA0 1NG up to Low HA0 1NH up to Low HA0 1NL up to Low HA0 1NQ up to Low HA0 1QG up to Low HA0 1TW up to Low HA0 4AZ up to Low HA0 4DY up to Low HA0 4EA up to Low HA0 4JJ up to Low HA0 4JP up to Low HA0 4JR up to Low HA0 4SF up to Low HA0 4TP up to Low

Rivers and flooding history near HA0

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

1,272 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (17 at warning level or above), most recently 27 August 2026. Warnings cover flood areas, not individual addresses.

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

🏠 Buying or renting in HA0? 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

HA1 HA2 HA3 HA4 HA5 HA6 HA7 HA8

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.