Does CH49 flood?

Only lower-likelihood flood risk is recorded in CH49: none of its 3 listed postcodes goes beyond the Low band. The CH49 postcode district covers Greasby, Frankby and Irby, close to Upton (Wirral), Hoylake, Moreton, and surrounding villages in Liverpool City Region.

3 postcodes in the CH49 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 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 CH49 postcodes are at risk?

CH49 1RZ up to Low CH49 2NF up to Low CH49 2NH up to Low

Rivers and flooding history near CH49

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

Greasby Road on the Arrowe Brook — 0.3 km away, highest on record 1.38m
Acton Lane on the Arrowe Brook — 1.7 km away, highest on record 1.61m
Fornalls Bridge on the River Birket — 3.1 km away, highest on record 1.57m
Davis Road on the River Birket — 3.7 km away, highest on record 3.27m

140 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (17 at warning level or above), most recently 4 April 2026. Warnings cover flood areas, not individual addresses.

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

EA01318_02_September_2015_Arrowe_Brook_Moreton (2015) — about 2.7 km from the centre
EA01318_05_September_2008_River_Fender_Woodchurch (2008) — about 2.6 km from the centre
EA01318_05_September_2008_River_Fender_Moreton (2008) — about 3.1 km from the centre
EA01318_05_September_2008_River_Fender_Bidston (2008) — about 2.8 km from the centre

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

🏠 Buying or renting in CH49? 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

CH48 CH47 CH46 CH45 CH44 CH43 CH42 CH41

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.