Does SG10 flood?

Yes — parts of the SG10 district carry real flood risk: 4 of its 8 at-risk postcodes reach the Environment Agency's High likelihood band. The SG10 postcode district covers Much Hadham, close to Little Hadham, Wareside, Bishop's Stortford, and surrounding villages in parts of Hertfordshire and Essex.

8 postcodes in the SG10 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 4 high, 2 medium, 2 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 SG10 postcodes are at risk?

SG10 6DG up to High SG10 6DQ up to High SG10 6HS up to High SG10 6HW up to High SG10 6AP up to Medium SG10 6EJ up to Medium SG10 6DS up to Low SG10 6EY up to Low

Rivers and flooding history near SG10

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

Little Hadham on the River Ash — 4.1 km away, highest on record 1.97m
Mardock on the River Ash — 5.2 km away, highest on record 1.61m
Bishops Stortford, Grange Paddocks on the River Stort — 6.9 km away, highest on record 1.80m
Wadesmill on the River Rib — 7 km away, highest on record 1.99m

97 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (14 at warning level or above), most recently 16 February 2026. Warnings cover flood areas, not individual addresses.

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

February 2014 flooding — about 2.6 km from the centre
February 2009 flooding — about 6.5 km from the centre
October 2001 flooding — about 5.2 km from the centre
October 1993 flooding — about 5.7 km from the centre

Records, not floods: no outline on the record is not evidence a place has not flooded.

🏠 Buying or renting in SG10? 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

SG11 SG9 SG12 SG8 SG13 SG7 SG14 SG6

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.