Does S18 flood?

Yes — parts of the S18 district carry real flood risk: 11 of its 21 at-risk postcodes reach the Environment Agency's High likelihood band. The S18 postcode district covers Barlow & Holmesfield, close to Dronfield, Dronfield Dam, Sheepbridge, and surrounding villages in parts of Derbyshire and South Yorkshire.

21 postcodes in the S18 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 11 high, 3 medium, 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 S18 postcodes are at risk?

S18 1QD up to High S18 1SB up to High S18 2GD up to High S18 2XB up to High S18 2XR up to High S18 7SL up to High S18 7SX up to High S18 7TJ up to High S18 7WF up to High S18 7WJ up to High S18 7WL up to High S18 2XL up to Medium S18 4AB up to Medium S18 7TB up to Medium S18 2GB up to Low S18 2WD up to Low S18 2XD up to Low S18 2XE up to Low S18 7SN up to Low S18 7TP up to Low S18 7WG up to Low

Rivers and flooding history near S18

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

Dronfield on the River Drone — 1.7 km away, highest on record 1.08m
Dronfield Dam on the River Drone — 2.5 km away, highest on record 8.27m
Sheepbridge on the River Whitting — 4 km away, highest on record 2.56m
Dore Twenty Well Lane on the River Sheaf — 4.5 km away, highest on record 2.25m

188 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (57 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):

October 2023 - Storm Babet - Recorded Flood Outline (2023) — about 3.6 km from the centre
2021 January Flood Incident - Storm Christoph (2021) — about 66.4 km from the centre
2020 February Flood Incident - Storm Dennis (2020) — about 62.7 km from the centre
2019 November Flood Incident (2019) — about 34 km from the centre

🏠 Buying or renting in S18? 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

S17 S20 S21 S14 S13 S12 S11 S25

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.