Does M18 flood?

Yes — parts of the M18 district carry real flood risk: 1 of its 13 at-risk postcodes reach the Environment Agency's High likelihood band. The M18 postcode district covers Gorton & Abbey Hey, Longsight, close to Ancouts, Fallowfield, Manchester, and surrounding villages in parts of Greater Manchester and Derbyshire.

13 postcodes in the M18 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 1 high, 1 medium, 11 low. A postcode not listed here has no properties in any recorded risk band (which is good news, but never proof it cannot flood).

Free preview first · full report £19

Which M18 postcodes are at risk?

M18 7FF up to High M18 8WW up to Medium M18 7DJ up to Low M18 8DA up to Low M18 8DB up to Low M18 8ED up to Low M18 8EF up to Low M18 8EL up to Low M18 8EQ up to Low M18 8NJ up to Low M18 8NL up to Low M18 8NP up to Low M18 8UJ up to Low

Rivers and flooding history near M18

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

London Road on the River Medlock — 3.7 km away, highest on record 1.80m
Portwood on the River Tame — 5.2 km away, highest on record 2.26m
Broomstairs Bridge on the River Tame — 5.4 km away, highest on record 2.54m
Brinksway on the River Mersey — 6.5 km away, highest on record 5.03m

367 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (112 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):

2020 February Flood Incident - Storm Dennis (2020) — about 62.7 km from the centre
June 2007 Flood Event (Ridings Area) (2007) — about 47.4 km from the centre
EA01326_30 July 2002_River Medlock_Droylsden (2002) — about 3 km from the centre
EA01326_30 July 2002_River Medlock_Ardwick (2002) — about 3 km from the centre

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

🏠 Buying or renting in M18? 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

M17 M19 M16 M20 M15 M21 M14 M22

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.