Does M23 flood?

Yes — parts of the M23 district carry real flood risk: 10 of its 42 at-risk postcodes reach the Environment Agency's High likelihood band. The M23 postcode district covers Brooklands, Baguley, Timperley North, close to Northern Moor, Northenden, Didsbury, and surrounding villages in parts of Greater Manchester and Cheshire East.

42 postcodes in the M23 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 10 high, 7 medium, 22 low, 3 very 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 M23 postcodes are at risk?

M23 0AG up to High M23 0AL up to High M23 0AT up to High M23 0QF up to High M23 9GW up to High M23 9HH up to High M23 9NZ up to High M23 9PR up to High M23 9PW up to High M23 9PY up to High M23 0AP up to Medium M23 0AW up to Medium M23 0AY up to Medium M23 0AZ up to Medium M23 9GU up to Medium M23 9LF up to Medium M23 9QW up to Medium M23 0AH up to Low M23 0AS up to Low M23 0AU up to Low M23 0AX up to Low M23 0GD up to Low M23 0GP up to Low M23 0HY up to Low M23 0HZ up to Low M23 0JN up to Low M23 0JP up to Low M23 0JW up to Low M23 0QE up to Low M23 0ZH up to Low M23 9EX up to Low M23 9FZ up to Low M23 9GE up to Low M23 9GT up to Low M23 9HB up to Low M23 9ND up to Low M23 9NN up to Low M23 9NP up to Low M23 9NS up to Low M23 9FF up to Very low M23 9FJ up to Very low M23 9FL up to Very low

Rivers and flooding history near M23

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

Northern Moor on the Baguley Brook — 0.5 km away, highest on record 1.51m
Northenden on the River Mersey — 3.1 km away, highest on record 3.76m
Didsbury River on the River Mersey — 4.2 km away, highest on record 7.69m
Flixton Bridge on the River Mersey — 7.2 km away, highest on record 4.92m

371 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (102 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):

Manchester Wythenshawe - NYE/NYD 25 (2025) — about 0.6 km from the centre
Manchester Brooklands - NYE/NYD 25 (2025) — about 2.8 km from the centre
71 73 Fairbourne Drive (2025) — about 1.5 km from the centre
2, 5, 6, 8 & 10 Wellington Road (2025) — 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 M23? 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

M22 M24 M21 M25 M20 M26 M19 M27

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.