Does L33 flood?

Parts of the L33 district carry moderate flood risk: 2 of its 12 at-risk postcodes reach the Environment Agency's Medium likelihood band. The L33 postcode district covers Shevington, Northwood, close to Aintree, Sefton, Ormskirk, and surrounding villages in parts of Liverpool City Region and Lancashire.

12 postcodes in the L33 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 2 medium, 10 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 L33 postcodes are at risk?

L33 7UY up to Medium L33 7UZ up to Medium L33 1ED up to Low L33 1EE up to Low L33 1EF up to Low L33 1EH up to Low L33 2AF up to Low L33 3AU up to Low L33 4DJ up to Low L33 4DL up to Low L33 4DR up to Low L33 7UL up to Low

Rivers and flooding history near L33

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

Kirkby on the River Alt — 3.3 km away, highest on record 2.22m
Dovers Bridge on the Dovers Brook — 5.7 km away, highest on record 2.59m
Dyers lane on the Sandy Brook — 7.5 km away, highest on record 1.32m
Haydock West End Road on the Black Brook — 12.3 km away

77 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (77 at warning level or above), most recently 4 September 2026. Warnings cover flood areas, not individual addresses.

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

Coach Road, Bickerstaffe (2015) — about 3.6 km from the centre
Powderworks Lane, Melling (2015) — about 3.2 km from the centre

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

🏠 Buying or renting in L33? 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

L32 L34 L31 L35 L30 L36 L29 L37

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.