Does WD25 flood?

Yes — parts of the WD25 district carry real flood risk: 3 of its 10 at-risk postcodes reach the Environment Agency's High likelihood band. The WD25 postcode district covers Meriden, Aldenham West, Bushey St James, Bushey North, close to Watford, Radlett, Colney Street, and surrounding villages in parts of Greater London and Hertfordshire.

10 postcodes in the WD25 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 3 high, 7 low. A postcode not listed here has no properties in any recorded risk band (which is good news, but never proof it cannot flood).

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Which WD25 postcodes are at risk?

WD25 8AX up to High WD25 9DB up to High WD25 9DG up to High WD25 8HD up to Low WD25 8HE up to Low WD25 8HN up to Low WD25 8PX up to Low WD25 9DN up to Low WD25 9DW up to Low WD25 9RL up to Low

Rivers and flooding history near WD25

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

Radlett on the Radlett Brook — 3.5 km away, highest on record 1.60m
Colney Street on the River Ver — 3.8 km away, highest on record 0.56m
Borehamwood on the Borehamwood Brook — 5.5 km away, highest on record 2.22m
Croxley Green on the River Gade — 6 km away, highest on record 0.42m

167 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (14 at warning level or above), most recently 28 August 2026. Warnings cover flood areas, not individual addresses.

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

February 2014 flooding — about 1.1 km from the centre
Winter 2013/2014 (2013) — about 37.9 km from the centre
February 2009 flooding — about 4.2 km from the centre

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

🏠 Buying or renting in WD25? 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

WD24 WD23 WD19 WD18 WD17 WD7 WD6 WD4

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.