Does CT15 flood?

Yes — parts of the CT15 district carry real flood risk: 5 of its 7 at-risk postcodes reach the Environment Agency's High likelihood band. The CT15 postcode district covers Alkham & Capel-le-Ferne, Guston, Kingsdown & St Margaret's-at-Cliffe, close to Dover, Folkestone, and surrounding villages in Kent.

7 postcodes in the CT15 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 5 high, 1 medium, 1 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 CT15 postcodes are at risk?

CT15 6DY up to High CT15 7BX up to High CT15 7BZ up to High CT15 7EN up to High CT15 7EW up to High CT15 7BU up to Medium CT15 7QJ up to Low

Rivers and flooding history near CT15

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

Alkham Valley on the Groundwater Level — 0.7 km away, highest on record 45.76m
Crabble Mill GS — 3 km away
Crabble Mill on the River Dour — 3 km away, highest on record 0.59m
Dover USGS — 5 km away

68 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (9 at warning level or above), most recently 6 November 2025. Warnings cover flood areas, not individual addresses.

No recorded flood extent is mapped near this district's centre. No recorded outline near the district means no flood was mapped here, which is not evidence none happened: the Environment Agency mapped only some floods, mapping effort rose sharply after about 2000, and surface-water flooding is largely absent from this record.

🏠 Buying or renting in CT15? 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

CT14 CT16 CT13 CT17 CT12 CT18 CT11 CT19

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.