Does N10 flood?

Parts of the N10 district carry moderate flood risk: 1 of its 2 at-risk postcodes reach the Environment Agency's Medium likelihood band. The N10 postcode district covers Fortis Green, East Finchley, close to Southgate, Totteridge, Finchley, and surrounding villages in parts of England and Hertfordshire.

2 postcodes in the N10 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 1 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 N10 postcodes are at risk?

N10 1JW up to Medium N10 1AF up to Low

Rivers and flooding history near N10

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

North Finchley on the Dollis Brook — 2.5 km away, highest on record 2.06m
Powys Lane on the Pymmes Brook — 2.7 km away, highest on record 2.05m
Hampstead Suburb on the Mutton Brook — 2.8 km away, highest on record 1.99m
Whetstone on the Dollis Brook — 2.9 km away, highest on record 1.07m

238 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):

July 2021 flooding — about 2.7 km from the centre
September 1992 flooding — about 12.9 km from the centre

🏠 Buying or renting in N10? 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

N11 N9 N12 N13 N14 N15 N16 N17

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.