Does KT17 flood?

Parts of the KT17 district carry moderate flood risk: 3 of its 5 at-risk postcodes reach the Environment Agency's Medium likelihood band. The KT17 postcode district sits close to Ewell, Tolworth, Worcester Park and surrounding villages in parts of England and Surrey.

5 postcodes in the KT17 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 3 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 KT17 postcodes are at risk?

KT17 1UD up to Medium KT17 2AA up to Medium KT17 2DQ up to Medium KT17 1SJ up to Low KT17 2AF up to Low

Rivers and flooding history near KT17

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

Bourne Hall GS — 0.2 km away
Ewell on the Hogsmill River — 0.5 km away, highest on record 0.80m
Ewell GS — 0.5 km away
Worcester Road on the Hogsmill River — 2.8 km away, highest on record 2.09m

482 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (51 at warning level or above), most recently 30 March 2026. Warnings cover flood areas, not individual addresses.

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

Winter 2013/2014 (2013) — about 18.9 km from the centre
September 1968 flooding — about 3.9 km from the centre

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

🏠 Buying or renting in KT17? 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

KT16 KT18 KT15 KT19 KT14 KT13 KT21 KT12

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.