Does TR9 flood?

Yes — parts of the TR9 district carry real flood risk: 10 of its 15 at-risk postcodes reach the Environment Agency's High likelihood band. The TR9 postcode district covers St Dennis & St Enoder, St Columb Major, St Mawgan & St Wenn, close to Gwills, Ladock, Grampound Road, and surrounding villages in Cornwall.

15 postcodes in the TR9 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 10 high, 2 medium, 3 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 TR9 postcodes are at risk?

TR9 6BD up to High TR9 6BE up to High TR9 6BZ up to High TR9 6JY up to High TR9 6LN up to High TR9 6LP up to High TR9 6LR up to High TR9 6LT up to High TR9 6NS up to High TR9 6TW up to High TR9 6HP up to Medium TR9 6TX up to Medium TR9 6DD up to Low TR9 6EY up to Low TR9 6PA up to Low

Rivers and flooding history near TR9

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

Gwills on the River Gannel — 8.3 km away, highest on record 1.59m
GWILLS — 8.3 km away
GWILLS — 8.3 km away
Ladock on the Tresillian River — 9.4 km away, highest on record 1.59m

175 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (24 at warning level or above), most recently 17 February 2026. Warnings cover flood areas, not individual addresses.

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

CW9260 - St Dennis - Trerice Bridge (2012) — about 3.1 km from the centre
CW8078 - St. Columb (SW) (2002) — about 0.2 km from the centre

🏠 Buying or renting in TR9? 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

TR10 TR8 TR11 TR7 TR12 TR6 TR13 TR5

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.