Does S4 flood?

Yes — parts of the S4 district carry real flood risk: 7 of its 36 at-risk postcodes reach the Environment Agency's High likelihood band. The S4 postcode district covers Darnall, Burngreave, City, Shiregreen and Brightside, close to Sheffield, Grimesthorpe, Sheffield Carr Brook Screen, and surrounding villages in parts of South Yorkshire and Derbyshire.

36 postcodes in the S4 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 7 high, 3 medium, 26 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 S4 postcodes are at risk?

S4 7UD up to High S4 7WW up to High S4 7YS up to High S4 7YW up to High S4 8AH up to High S4 8AJ up to High S4 8DA up to High S4 7YX up to Medium S4 7YY up to Medium S4 7ZE up to Medium S4 7QQ up to Low S4 7SW up to Low S4 7TA up to Low S4 7TZ up to Low S4 7UL up to Low S4 7UQ up to Low S4 7UR up to Low S4 7UT up to Low S4 7UU up to Low S4 7UW up to Low S4 7WA up to Low S4 7WB up to Low S4 7WG up to Low S4 7WN up to Low S4 7WT up to Low S4 7WZ up to Low S4 7XF up to Low S4 7YA up to Low S4 7YB up to Low S4 7YP up to Low S4 7YU up to Low S4 7ZG up to Low S4 7ZN up to Low S4 8AL up to Low S4 8AN up to Low S4 8EY up to Low

Rivers and flooding history near S4

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

Sheffield Lady's Bridge on the River Don — 1.3 km away, highest on record 4.47m
Grimesthorpe on the Bagley Dike — 1.7 km away, highest on record 2.86m
Sheffield Station on the Porter Brook — 2.1 km away, highest on record 1.09m
Highfield on the River Sheaf — 2.5 km away, highest on record 3.26m

333 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (102 at warning level or above), most recently 30 August 2026. Warnings cover flood areas, not individual addresses.

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

2022 February Flood Incident -Storm Dudley, Eunice and Franklin (2022) — about 27 km from the centre
2021 January Flood Incident - Storm Christoph (2021) — about 54.8 km from the centre
2020 February Flood Incident - Storm Dennis (2020) — about 51.9 km from the centre

🏠 Buying or renting in S4? 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

S3 S5 S2 S6 S1 S7 S8 S9

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.