Does LU1 flood?

Yes — parts of the LU1 district carry real flood risk: 5 of its 25 at-risk postcodes reach the Environment Agency's High likelihood band. The LU1 postcode district covers Caddington, Dallow, close to Stopsley, Upper Lee, Leagrave, and surrounding villages in parts of Hertfordshire and Luton.

25 postcodes in the LU1 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 5 high, 8 medium, 6 low, 6 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 LU1 postcodes are at risk?

LU1 2EP up to High LU1 2HN up to High LU1 2NQ up to High LU1 3JG up to High LU1 4LF up to High LU1 1HT up to Medium LU1 1SE up to Medium LU1 1SH up to Medium LU1 1SQ up to Medium LU1 2EF up to Medium LU1 2NA up to Medium LU1 3TS up to Medium LU1 3TW up to Medium LU1 1HS up to Low LU1 1SA up to Low LU1 2NB up to Low LU1 2PL up to Low LU1 3HN up to Low LU1 3TU up to Low LU1 1HX up to Very low LU1 1HZ up to Very low LU1 2NF up to Very low LU1 2NW up to Very low LU1 2TR up to Very low LU1 3TQ up to Very low

Rivers and flooding history near LU1

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

Luton, Stockingstone Road on the River Lee — 2.5 km away, highest on record 1.29m
Luton East Hyde on the River Lee — 3.6 km away, highest on record 2.77m
Harpenden on the River Lee — 6.6 km away, highest on record 1.69m
Whitwell on the River Mimram — 8.9 km away, highest on record 0.28m

31 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (5 at warning level or above), most recently 19 December 2024. Warnings cover flood areas, not individual addresses.

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

EA06SeptemberAutumn2024 (2024) — about 0.6 km from the centre
May 2007 flooding — about 3.1 km from the centre
06AprilEaster1998 (1998) — about 1.5 km from the centre
June 1993 flooding — about 5.3 km from the centre

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

🏠 Buying or renting in LU1? 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

LU2 LU3 LU4 LU5 LU6 LU7

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.