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Does S3 flood?

Yes — parts of the S3 district carry real flood risk: 13 of its 123 at-risk postcodes reach the Environment Agency's High likelihood band. The S3 postcode district covers City, Hillsborough, Walkley, Burngreave, close to Sheffield, Grimesthorpe, Sheffield Meersbrook, and surrounding villages in parts of South Yorkshire and Derbyshire.

123 postcodes in the S3 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 13 high, 2 medium, 105 low, 3 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 S3 postcodes are at risk?

S3 8AT up to High S3 8AW up to High S3 8BJ up to High S3 8BR up to High S3 8DB up to High S3 8DG up to High S3 8EL up to High S3 8EN up to High S3 8EP up to High S3 8ER up to High S3 8ES up to High S3 8FF up to High S3 8SD up to High S3 8GJ up to Medium S3 8HS up to Medium S3 8AA up to Low S3 8AB up to Low S3 8AF up to Low S3 8AP up to Low S3 8AS up to Low S3 8AU up to Low S3 8AY up to Low S3 8AZ up to Low S3 8BB up to Low S3 8BD up to Low S3 8BF up to Low S3 8BL up to Low S3 8BS up to Low S3 8BT up to Low S3 8BU up to Low S3 8BW up to Low S3 8BX up to Low S3 8BY up to Low S3 8BZ up to Low S3 8DE up to Low S3 8DF up to Low S3 8DH up to Low S3 8DP up to Low S3 8DQ up to Low S3 8DR up to Low S3 8DT up to Low S3 8DU up to Low S3 8DW up to Low S3 8DX up to Low S3 8DY up to Low S3 8DZ up to Low S3 8EA up to Low S3 8ED up to Low S3 8EF up to Low S3 8EG up to Low S3 8EQ up to Low S3 8EW up to Low S3 8EX up to Low S3 8EY up to Low S3 8EZ up to Low S3 8FB up to Low S3 8FD up to Low S3 8FE up to Low S3 8FR up to Low S3 8FS up to Low S3 8FT up to Low S3 8FU up to Low S3 8GF up to Low S3 8GG up to Low S3 8GL up to Low S3 8GP up to Low S3 8GT up to Low S3 8GW up to Low S3 8GZ up to Low S3 8HD up to Low S3 8HG up to Low S3 8HH up to Low S3 8HJ up to Low S3 8HN up to Low S3 8HQ up to Low S3 8HR up to Low S3 8HT up to Low S3 8JA up to Low S3 8JB up to Low S3 8JD up to Low S3 8JT up to Low S3 8JU up to Low S3 8JY up to Low S3 8ND up to Low S3 8NE up to Low S3 8NF up to Low S3 8NG up to Low S3 8NH up to Low S3 8NR up to Low S3 8NS up to Low S3 8NW up to Low S3 8NX up to Low S3 8PB up to Low S3 8PH up to Low S3 8PN up to Low S3 8RA up to Low S3 8RG up to Low S3 8RP up to Low S3 8RQ up to Low S3 8RR up to Low S3 8RT up to Low S3 8RW up to Low S3 8RY up to Low S3 8RZ up to Low S3 8SA up to Low S3 8SB up to Low S3 8SE up to Low S3 8SH up to Low S3 8SJ up to Low S3 8SL up to Low S3 8SN up to Low S3 8SQ up to Low S3 8SR up to Low S3 8SS up to Low S3 8SU up to Low S3 8SW up to Low S3 8SX up to Low S3 8UH up to Low S3 8UR up to Low S3 9PJ up to Low S3 8BG up to Very low S3 8GA up to Very low S3 8HY up to Very low

Rivers and flooding history near S3

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

299 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (100 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):

🏠 Buying or renting in S3? 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

S2 S4 S1 S5 S6 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.