Does SS11 flood?

Yes — parts of the SS11 district carry real flood risk: 26 of its 67 at-risk postcodes reach the Environment Agency's High likelihood band. The SS11 postcode district covers Rettendon and Runwell, Downhall and Rawreth, close to Wickford, Great Burstead, Sandon, and surrounding villages in parts of Essex and England.

67 postcodes in the SS11 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 26 high, 1 medium, 28 low, 12 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 SS11 postcodes are at risk?

SS11 7HQ up to High SS11 7HW up to High SS11 7NJ up to High SS11 7QT up to High SS11 7RG up to High SS11 7RH up to High SS11 7RJ up to High SS11 8GH up to High SS11 8RZ up to High SS11 8SA up to High SS11 8SD up to High SS11 8SG up to High SS11 8SH up to High SS11 8SJ up to High SS11 8SQ up to High SS11 8TD up to High SS11 8TE up to High SS11 8TF up to High SS11 8TG up to High SS11 8TH up to High SS11 8TJ up to High SS11 8TL up to High SS11 8TN up to High SS11 8TR up to High SS11 8TS up to High SS11 8TZ up to High SS11 8UE up to Medium SS11 7AA up to Low SS11 7AB up to Low SS11 7AD up to Low SS11 7AJ up to Low SS11 7AN up to Low SS11 7BZ up to Low SS11 7DL up to Low SS11 7HG up to Low SS11 7HJ up to Low SS11 7HL up to Low SS11 7HR up to Low SS11 7PN up to Low SS11 7QH up to Low SS11 7RE up to Low SS11 7RF up to Low SS11 7RL up to Low SS11 8AA up to Low SS11 8AB up to Low SS11 8AQ up to Low SS11 8BB up to Low SS11 8BD up to Low SS11 8BG up to Low SS11 8GD up to Low SS11 8GL up to Low SS11 8HJ up to Low SS11 8JE up to Low SS11 8NF up to Low SS11 8XB up to Low SS11 7GJ up to Very low SS11 7GL up to Very low SS11 7GN up to Very low SS11 7GP up to Very low SS11 7GR up to Very low SS11 7GS up to Very low SS11 7GT up to Very low SS11 7HN up to Very low SS11 7HP up to Very low SS11 7NH up to Very low SS11 7QL up to Very low SS11 7QX up to Very low

Rivers and flooding history near SS11

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

119 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (26 at warning level or above), most recently 13 June 2025. 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 SS11? 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

SS12 SS13 SS9 SS14 SS8 SS15 SS7 SS16

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.