Does M31 flood?

Yes — parts of the M31 district carry real flood risk: 5 of its 7 at-risk postcodes reach the Environment Agency's High likelihood band. The M31 postcode district covers Bucklow-St Martins, close to Flixton, Partington, Urmston, and surrounding villages in parts of Greater Manchester and Warrington.

7 postcodes in the M31 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 5 high, 2 medium. 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 M31 postcodes are at risk?

M31 4AY up to High M31 4NW up to High M31 4QN up to High M31 4QR up to High M31 4WY up to High M31 4AD up to Medium M31 4BD up to Medium

Rivers and flooding history near M31

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

Flixton Bridge on the River Mersey — 1.1 km away, highest on record 4.92m
Partington on the Sinderland Brook — 2.6 km away, highest on record 1.58m
Little Woolden Hall on the Glaze Brook — 5.2 km away, highest on record 3.58m
Bollington Mill on the River Bollin — 5.9 km away, highest on record 1.50m

372 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (67 at warning level or above), most recently 3 September 2026. Warnings cover flood areas, not individual addresses.

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

MERS (1998) — about 1 km from the centre
MERS (1998) — about 1.3 km from the centre
SIND (1981) — about 3.7 km from the centre

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

🏠 Buying or renting in M31? 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

M30 M32 M29 M33 M28 M34 M27 M26

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.