Does RG17 flood?

Yes — parts of the RG17 district carry real flood risk: 36 of its 72 at-risk postcodes reach the Environment Agency's High likelihood band. The RG17 postcode district covers Lambourn, Downlands, Aldbourne & Ramsbury, close to Eastbury, Hungerford, Lambourn (Great Shefford), and surrounding villages in parts of West Berkshire and Wiltshire.

72 postcodes in the RG17 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 36 high, 18 medium, 16 low, 2 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).

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Which RG17 postcodes are at risk?

RG17 0DN up to High RG17 0DW up to High RG17 0EG up to High RG17 0EH up to High RG17 0GU up to High RG17 0HD up to High RG17 0NN up to High RG17 0PF up to High RG17 0QU up to High RG17 0TG up to High RG17 0UL up to High RG17 0UN up to High RG17 7BX up to High RG17 7DA up to High RG17 7DB up to High RG17 7DF up to High RG17 7DR up to High RG17 7DS up to High RG17 7EU up to High RG17 7EX up to High RG17 7HF up to High RG17 7HW up to High RG17 7JJ up to High RG17 7JL up to High RG17 7JN up to High RG17 7JP up to High RG17 7JQ up to High RG17 8PE up to High RG17 8PQ up to High RG17 8QH up to High RG17 8QN up to High RG17 8RG up to High RG17 8YB up to High RG17 8YR up to High RG17 8YT up to High RG17 9AG up to High RG17 0EJ up to Medium RG17 0EL up to Medium RG17 0EP up to Medium RG17 0ER up to Medium RG17 0ES up to Medium RG17 0GX up to Medium RG17 0NS up to Medium RG17 0QP up to Medium RG17 0SX up to Medium RG17 7DD up to Medium RG17 7DN up to Medium RG17 7HJ up to Medium RG17 7JD up to Medium RG17 7JG up to Medium RG17 8PG up to Medium RG17 8XS up to Medium RG17 8XT up to Medium RG17 8XY up to Medium RG17 0ET up to Low RG17 0EW up to Low RG17 0HL up to Low RG17 0HW up to Low RG17 0NT up to Low RG17 0NU up to Low RG17 0QE up to Low RG17 0SU up to Low RG17 0YY up to Low RG17 7DG up to Low RG17 7HE up to Low RG17 7HQ up to Low RG17 7LL up to Low RG17 7LS up to Low RG17 8QZ up to Low RG17 9DP up to Low RG17 7LX up to Very low RG17 7LY up to Very low

Rivers and flooding history near RG17

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

61 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (13 at warning level or above), most recently 8 May 2026. Warnings cover flood areas, not individual addresses.

No recorded flood extent is mapped near this district's centre. No recorded outline near the district means no flood was mapped here, which is not evidence none happened: the Environment Agency mapped only some floods, mapping effort rose sharply after about 2000, and surface-water flooding is largely absent from this record.

🏠 Buying or renting in RG17? 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

RG18 RG19 RG14 RG20 RG21 RG12 RG22 RG10

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.