Does EC3N flood?

Yes — parts of the EC3N district carry real flood risk: 2 of its 3 at-risk postcodes reach the Environment Agency's High likelihood band. The EC3N postcode district covers St Katharine's & Wapping, close to Tower Pier, Westminster, Charlton, and surrounding villages in Greater London.

3 postcodes in the EC3N district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 2 high, 1 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 EC3N postcodes are at risk?

EC3N 4AB up to High EC3N 4DT up to High EC3N 4AE up to Very low

Rivers and flooding history near EC3N

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

Lea Bridge on the River Lee — 6.9 km away, highest on record 6.52m
Catford Hill on the River Ravensbourne — 8.2 km away, highest on record 1.20m
Manor House Gardens on the River Quaggy — 8.2 km away, highest on record 1.08m
Winsford Road on the River Pool — 8.8 km away, highest on record 0.89m

108 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006, most recently 3 March 2026. Warnings cover flood areas, not individual addresses.

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

TTD_FEO_1928 (1928) — about 1.5 km from the centre
TTD_FEO_1928 (1928) — about 0.5 km from the centre

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

🏠 Buying or renting in EC3N? 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

EC3R EC4R EC4V EC4Y

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.