Does L19 flood?

Yes — parts of the L19 district carry real flood risk: 8 of its 9 at-risk postcodes reach the Environment Agency's High likelihood band. The L19 postcode district covers Grassendale & Cressington, Garston, close to Netherley, Ellesmere Port, Bootle, and surrounding villages in parts of Liverpool City Region and Cheshire West and Chester.

9 postcodes in the L19 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 8 high, 1 medium. 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 L19 postcodes are at risk?

L19 0LD up to High L19 0LL up to High L19 0LP up to High L19 0LR up to High L19 0LS up to High L19 0LT up to High L19 0PX up to High L19 2JR up to High L19 0PP up to Medium

Rivers and flooding history near L19

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

Winster Drive on the Netherley Brook — 6.8 km away, highest on record 2.92m
Davis Road on the River Birket — 13 km away, highest on record 3.27m
Greasby Road on the Arrowe Brook — 13 km away, highest on record 1.38m
Kirkby on the River Alt — 13.6 km away, highest on record 2.22m

105 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (13 at warning level or above), most recently 4 April 2026. 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 L19? 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

L20 L17 L21 L16 L24 L25 L12 L26

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.