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Does RH1 flood?

Yes — parts of the RH1 district carry real flood risk: 37 of its 126 at-risk postcodes reach the Environment Agency's High likelihood band. The RH1 postcode district covers Earlswood & Whitebushes, Bletchingley & Nutfield, close to Redhill, Salfords, Sidlow, and surrounding villages in parts of Surrey and West Sussex.

126 postcodes in the RH1 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 37 high, 24 medium, 63 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).

Free preview first · full report £19

Which RH1 postcodes are at risk?

RH1 2FH up to High RH1 2FT up to High RH1 2GL up to High RH1 2GN up to High RH1 2GQ up to High RH1 2GR up to High RH1 2LW up to High RH1 3LB up to High RH1 3LD up to High RH1 3LL up to High RH1 5AB up to High RH1 5AD up to High RH1 5AE up to High RH1 5AG up to High RH1 5AL up to High RH1 5DN up to High RH1 5DS up to High RH1 5GT up to High RH1 5HE up to High RH1 5HF up to High RH1 5HQ up to High RH1 5HX up to High RH1 5HY up to High RH1 5JB up to High RH1 5JD up to High RH1 5JE up to High RH1 5JF up to High RH1 5JG up to High RH1 5LB up to High RH1 5LD up to High RH1 5LT up to High RH1 5NB up to High RH1 5PG up to High RH1 5RF up to High RH1 5SG up to High RH1 5SH up to High RH1 5SW up to High RH1 1AU up to Medium RH1 1HG up to Medium RH1 1PT up to Medium RH1 1RB up to Medium RH1 1SJ up to Medium RH1 2GD up to Medium RH1 2LH up to Medium RH1 2LX up to Medium RH1 2NL up to Medium RH1 2NP up to Medium RH1 3LP up to Medium RH1 3LW up to Medium RH1 4AX up to Medium RH1 4BL up to Medium RH1 5HH up to Medium RH1 5HL up to Medium RH1 5HZ up to Medium RH1 5JA up to Medium RH1 5RN up to Medium RH1 5SS up to Medium RH1 6DL up to Medium RH1 6PP up to Medium RH1 6SH up to Medium RH1 6YS up to Medium RH1 1AL up to Low RH1 1EU up to Low RH1 1FE up to Low RH1 1FG up to Low RH1 1FN up to Low RH1 1LY up to Low RH1 1ND up to Low RH1 1NN up to Low RH1 1NT up to Low RH1 1NZ up to Low RH1 1PA up to Low RH1 1PD up to Low RH1 1PH up to Low RH1 1PL up to Low RH1 1PZ up to Low RH1 1QA up to Low RH1 1QH up to Low RH1 1QW up to Low RH1 1RD up to Low RH1 1RG up to Low RH1 1RH up to Low RH1 1RJ up to Low RH1 1RP up to Low RH1 1RR up to Low RH1 1RT up to Low RH1 1RU up to Low RH1 1RW up to Low RH1 1RX up to Low RH1 1RY up to Low RH1 1SA up to Low RH1 1SE up to Low RH1 1SG up to Low RH1 1SH up to Low RH1 1ST up to Low RH1 1UE up to Low RH1 1UF up to Low RH1 1UG up to Low RH1 2GJ up to Low RH1 2GS up to Low RH1 2JE up to Low RH1 2PB up to Low RH1 2PF up to Low RH1 3HG up to Low RH1 4EG up to Low RH1 4JD up to Low RH1 5BT up to Low RH1 5GS up to Low RH1 5GY up to Low RH1 5HG up to Low RH1 5JN up to Low RH1 5NJ up to Low RH1 5NP up to Low RH1 5PL up to Low RH1 5RP up to Low RH1 5RY up to Low RH1 5SE up to Low RH1 6PF up to Low RH1 6PS up to Low RH1 6QL up to Low RH1 6QS up to Low RH1 6QZ up to Low RH1 6RZ up to Low RH1 6SJ up to Low RH1 5LL up to Very low RH1 5SN up to Very low

Rivers and flooding history near RH1

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

187 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (47 at warning level or above), most recently 1 February 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 RH1? 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

RH2 RH3 RH4 RH5 RH6 RH7 RH8 RH9

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.