Does SE6 flood?

Yes — parts of the SE6 district carry real flood risk: 3 of its 57 at-risk postcodes reach the Environment Agency's High likelihood band. The SE6 postcode district covers Rushey Green, Bellingham, Downham, close to Catford, Grove Park, Hither Green, and surrounding villages in Greater London.

57 postcodes in the SE6 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 3 high, 20 medium, 32 low, 2 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 SE6 postcodes are at risk?

SE6 4NU up to High SE6 4PZ up to High SE6 4RW up to High SE6 2XA up to Medium SE6 3AS up to Medium SE6 3AW up to Medium SE6 3BH up to Medium SE6 3BP up to Medium SE6 3JH up to Medium SE6 3NG up to Medium SE6 3NH up to Medium SE6 3PJ up to Medium SE6 3PL up to Medium SE6 4BG up to Medium SE6 4BL up to Medium SE6 4BN up to Medium SE6 4BT up to Medium SE6 4QA up to Medium SE6 4QB up to Medium SE6 4RE up to Medium SE6 4RN up to Medium SE6 4SW up to Medium SE6 4TA up to Medium SE6 2PG up to Low SE6 2RS up to Low SE6 2UN up to Low SE6 2XL up to Low SE6 3AT up to Low SE6 3AU up to Low SE6 3BE up to Low SE6 3BG up to Low SE6 3BJ up to Low SE6 3BN up to Low SE6 3DD up to Low SE6 3DE up to Low SE6 3JQ up to Low SE6 3PN up to Low SE6 3UW up to Low SE6 4BS up to Low SE6 4JN up to Low SE6 4PL up to Low SE6 4QS up to Low SE6 4QT up to Low SE6 4QU up to Low SE6 4QX up to Low SE6 4QZ up to Low SE6 4RH up to Low SE6 4RQ up to Low SE6 4SP up to Low SE6 4SR up to Low SE6 4TF up to Low SE6 4TP up to Low SE6 4TQ up to Low SE6 4TR up to Low SE6 4TW up to Low SE6 3AY up to Very low SE6 3BB up to Very low

Rivers and flooding history near SE6

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

218 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (14 at warning level or above), most recently 27 August 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 SE6? 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

SE5 SE7 SE4 SE8 SE3 SE9 SE10 SE2

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.