FloodRadar
Log inCreate free account

Explore FloodRadar

Explore the map
Weather
Why ?

Does CB3 flood?

Yes — parts of the CB3 district carry real flood risk: 25 of its 51 at-risk postcodes reach the Environment Agency's High likelihood band. The CB3 postcode district covers Newnham, Girton, Harston & Comberton, West Chesterton, close to Cambridge, Grantchester, Milton, and surrounding villages in Cambridgeshire.

51 postcodes in the CB3 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 25 high, 7 medium, 19 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 CB3 postcodes are at risk?

CB3 0AD up to High CB3 0AG up to High CB3 0EE up to High CB3 0JY up to High CB3 0QB up to High CB3 0QE up to High CB3 0QF up to High CB3 0QH up to High CB3 0QN up to High CB3 9AF up to High CB3 9AG up to High CB3 9AN up to High CB3 9DH up to High CB3 9EG up to High CB3 9EL up to High CB3 9ES up to High CB3 9ET up to High CB3 9EU up to High CB3 9EX up to High CB3 9EY up to High CB3 9JN up to High CB3 9LH up to High CB3 9LL up to High CB3 9LN up to High CB3 9PA up to High CB3 0AF up to Medium CB3 0JJ up to Medium CB3 9HF up to Medium CB3 9HY up to Medium CB3 9JL up to Medium CB3 9ND up to Medium CB3 9NE up to Medium CB3 0RX up to Low CB3 9AH up to Low CB3 9AJ up to Low CB3 9AL up to Low CB3 9DA up to Low CB3 9DS up to Low CB3 9ED up to Low CB3 9EE up to Low CB3 9EP up to Low CB3 9EZ up to Low CB3 9HB up to Low CB3 9HD up to Low CB3 9HZ up to Low CB3 9JF up to Low CB3 9JG up to Low CB3 9JH up to Low CB3 9JQ up to Low CB3 9LU up to Low CB3 9NB up to Low

Rivers and flooding history near CB3

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

210 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (17 at warning level or above), most recently 16 February 2026. Warnings cover flood areas, not individual addresses.

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

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

🏠 Buying or renting in CB3? 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

CB2 CB4 CB1 CB5 CB6 CB7 CB8 CB9

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.