Does M33 flood?

Yes — parts of the M33 district carry real flood risk: 36 of its 152 at-risk postcodes reach the Environment Agency's High likelihood band. The M33 postcode district covers Brooklands, Ashton upon Mersey, Timperley North, Sale Moor, close to Northern Moor, Urmston, Northenden, and surrounding villages in parts of Greater Manchester and Cheshire East.

152 postcodes in the M33 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 36 high, 6 medium, 57 low, 53 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).

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Which M33 postcodes are at risk?

M33 2LX up to High M33 2XL up to High M33 3GG up to High M33 3GN up to High M33 3GP up to High M33 3GW up to High M33 3JY up to High M33 3LB up to High M33 3LD up to High M33 3LE up to High M33 3LF up to High M33 3LG up to High M33 3NY up to High M33 3PA up to High M33 3PD up to High M33 3PE up to High M33 3PL up to High M33 3PN up to High M33 3PS up to High M33 3PT up to High M33 3PU up to High M33 3PX up to High M33 3QL up to High M33 3QP up to High M33 3QQ up to High M33 3QW up to High M33 3RA up to High M33 3RB up to High M33 3RD up to High M33 3RG up to High M33 3RL up to High M33 3RR up to High M33 3RT up to High M33 3SH up to High M33 3SY up to High M33 3SZ up to High M33 3LQ up to Medium M33 3PY up to Medium M33 3RN up to Medium M33 3RP up to Medium M33 3TS up to Medium M33 3TW up to Medium M33 2JU up to Low M33 2TQ up to Low M33 2TR up to Low M33 2UX up to Low M33 2UY up to Low M33 2UZ up to Low M33 2XN up to Low M33 2XP up to Low M33 2XU up to Low M33 2XW up to Low M33 3GR up to Low M33 3LH up to Low M33 3PF up to Low M33 3PH up to Low M33 3PJ up to Low M33 3PQ up to Low M33 3QE up to Low M33 3QF up to Low M33 3RH up to Low M33 3RJ up to Low M33 3RQ up to Low M33 3RW up to Low M33 3RZ up to Low M33 3SB up to Low M33 3SG up to Low M33 3SR up to Low M33 3TD up to Low M33 3TF up to Low M33 3TH up to Low M33 3TT up to Low M33 4JL up to Low M33 4NS up to Low M33 5BR up to Low M33 5GQ up to Low M33 5GR up to Low M33 5GS up to Low M33 5GT up to Low M33 5GU up to Low M33 5GY up to Low M33 5GZ up to Low M33 5NL up to Low M33 5QG up to Low M33 5QQ up to Low M33 5QR up to Low M33 5QS up to Low M33 5QT up to Low M33 5QU up to Low M33 5QZ up to Low M33 5WW up to Low M33 6JT up to Low M33 6LG up to Low M33 6LR up to Low M33 6PA up to Low M33 6PB up to Low M33 6PD up to Low M33 6PE up to Low M33 6WZ up to Low M33 3EP up to Very low M33 3ER up to Very low M33 3FN up to Very low M33 3FP up to Very low M33 3FR up to Very low M33 3FW up to Very low M33 3GH up to Very low M33 3GJ up to Very low M33 3GL up to Very low M33 3GS up to Very low M33 3GT up to Very low M33 3GU up to Very low M33 3GX up to Very low M33 3JG up to Very low M33 3JJ up to Very low M33 3JS up to Very low M33 3JU up to Very low M33 3JX up to Very low M33 3JZ up to Very low M33 3LA up to Very low M33 3LZ up to Very low M33 3QA up to Very low M33 3QR up to Very low M33 3QS up to Very low M33 3QT up to Very low M33 3QU up to Very low M33 3QX up to Very low M33 3QZ up to Very low M33 3SL up to Very low M33 3ST up to Very low M33 3SX up to Very low M33 3TA up to Very low M33 3TB up to Very low M33 3TE up to Very low M33 3TG up to Very low M33 3TJ up to Very low M33 3TL up to Very low M33 3TN up to Very low M33 3TP up to Very low M33 3TQ up to Very low M33 3TR up to Very low M33 3UN up to Very low M33 3UX up to Very low M33 3UY up to Very low M33 3WJ up to Very low M33 5QX up to Very low M33 6JA up to Very low M33 6LQ up to Very low M33 6NN up to Very low M33 6PF up to Very low M33 6WL up to Very low M33 6WW up to Very low M33 6WY up to Very low

Rivers and flooding history near M33

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

381 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):

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

🏠 Buying or renting in M33? 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

M32 M34 M31 M30 M29 M28 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.