Does NN3 flood?

Yes — parts of the NN3 district carry real flood risk: 9 of its 34 at-risk postcodes reach the Environment Agency's High likelihood band. The NN3 postcode district covers Billing, Weston Favell & Abington Vale, Moulton, Talavera, close to Nene Valley, Great Houghton, Cogenhoe, and surrounding villages in parts of West Northamptonshire and North Northamptonshire.

34 postcodes in the NN3 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 9 high, 4 medium, 7 low, 14 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 NN3 postcodes are at risk?

NN3 3HJ up to High NN3 7TG up to High NN3 9DA up to High NN3 9ER up to High NN3 9EX up to High NN3 9HG up to High NN3 9HW up to High NN3 9HX up to High NN3 9UE up to High NN3 5DR up to Medium NN3 7UF up to Medium NN3 9AL up to Medium NN3 9BZ up to Medium NN3 3QE up to Low NN3 5HQ up to Low NN3 7TU up to Low NN3 8EZ up to Low NN3 9BX up to Low NN3 9GA up to Low NN3 9TG up to Low NN3 3DH up to Very low NN3 3EH up to Very low NN3 3EJ up to Very low NN3 3EL up to Very low NN3 3HD up to Very low NN3 3HE up to Very low NN3 3HF up to Very low NN3 3HL up to Very low NN3 3LF up to Very low NN3 3QG up to Very low NN3 3QH up to Very low NN3 9AF up to Very low NN3 9HU up to Very low NN3 9HZ up to Very low

Rivers and flooding history near NN3

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

Nene Valley on the River Nene — 1.5 km away, highest on record 1.64m
Cogenhoe on the River Nene — 3.7 km away, highest on record 1.24m
ST ANDREWS MILL BYPASS GS NORTHAMPTON — 4.8 km away
South Bridge on the River Nene — 4.8 km away, highest on record 3.40m

168 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (105 at warning level or above), most recently 7 February 2026. Warnings cover flood areas, not individual addresses.

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

LNA_1998_April_River Nene_d/s Northampton (1998) — about 21.9 km from the centre
LNA_1947_March_River Nene_d/s Northampton (1947) — about 0.8 km from the centre

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

🏠 Buying or renting in NN3? 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

NN2 NN4 NN1 NN5 NN6 NN7 NN8 NN9

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.