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Does BN26 flood?

Yes — parts of the BN26 district carry real flood risk: 10 of its 42 at-risk postcodes reach the Environment Agency's High likelihood band. The BN26 postcode district covers Polegate South & Willingdon Watermill, South Downs, Polegate North, Lower Willingdon, close to Eastbourne Harbour, Hellingly, Lealands, and surrounding villages in East Sussex.

42 postcodes in the BN26 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 10 high, 9 medium, 22 low, 1 very 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 BN26 postcodes are at risk?

BN26 5DP up to High BN26 5RD up to High BN26 5RJ up to High BN26 5SX up to High BN26 5TJ up to High BN26 5TL up to High BN26 5TT up to High BN26 5TW up to High BN26 5UQ up to High BN26 6QX up to High BN26 5AT up to Medium BN26 5AY up to Medium BN26 5DB up to Medium BN26 5DN up to Medium BN26 5DR up to Medium BN26 5NS up to Medium BN26 5NX up to Medium BN26 5PU up to Medium BN26 6BQ up to Medium BN26 5AA up to Low BN26 5AE up to Low BN26 5AF up to Low BN26 5AG up to Low BN26 5AN up to Low BN26 5AP up to Low BN26 5AQ up to Low BN26 5AS up to Low BN26 5AZ up to Low BN26 5BN up to Low BN26 5LN up to Low BN26 5LR up to Low BN26 5LY up to Low BN26 5PE up to Low BN26 5PH up to Low BN26 5UG up to Low BN26 6AL up to Low BN26 6BG up to Low BN26 6BH up to Low BN26 6DR up to Low BN26 6DS up to Low BN26 6RY up to Low BN26 5EA up to Very low

Rivers and flooding history near BN26

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

365 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (86 at warning level or above), most recently 26 August 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 BN26? 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

BN25 BN27 BN24 BN23 BN22 BN21 BN20 BN18

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.