Does SE26 flood?

Yes — parts of the SE26 district carry real flood risk: 6 of its 17 at-risk postcodes reach the Environment Agency's High likelihood band. The SE26 postcode district covers Penge & Cator, Bellingham, close to Catford, Grove Park, Beckenham, and surrounding villages in Greater London.

17 postcodes in the SE26 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 6 high, 10 medium, 1 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 SE26 postcodes are at risk?

SE26 5AN up to High SE26 5BG up to High SE26 5BQ up to High SE26 5BW up to High SE26 5DA up to High SE26 5FL up to High SE26 5BE up to Medium SE26 5BF up to Medium SE26 5BP up to Medium SE26 5FD up to Medium SE26 5FJ up to Medium SE26 5FP up to Medium SE26 5FQ up to Medium SE26 5FR up to Medium SE26 5FS up to Medium SE26 5FT up to Medium SE26 5BN up to Low

Rivers and flooding history near SE26

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

Winsford Road on the River Pool — 1.4 km away, highest on record 0.89m
Beckenham Park on the River Ravensbourne — 1.7 km away, highest on record 1.49m
Catford Hill on the River Ravensbourne — 2 km away, highest on record 1.20m
Downham Lane on the Spring Brook — 2 km away, highest on record 1.74m

271 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):

September 1968 flooding — about 3.2 km from the centre

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

🏠 Buying or renting in SE26? 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

SE25 SE28 SE20 SE18 SE17 SE16 SE15 SE14

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.