Does GU3 flood?

Yes — parts of the GU3 district carry real flood risk: 21 of its 32 at-risk postcodes reach the Environment Agency's High likelihood band. The GU3 postcode district covers Worplesdon, Shalford, Normandy & Pirbright, Heathlands, close to Guildford, Mayford, Godalming, and surrounding villages in parts of Surrey and Hampshire.

32 postcodes in the GU3 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 21 high, 5 medium, 6 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 GU3 postcodes are at risk?

GU3 1AF up to High GU3 1LQ up to High GU3 1LZ up to High GU3 1NA up to High GU3 1NB up to High GU3 2AT up to High GU3 2BE up to High GU3 2BZ up to High GU3 3EF up to High GU3 3EG up to High GU3 3EQ up to High GU3 3HA up to High GU3 3JR up to High GU3 3JW up to High GU3 3PJ up to High GU3 3PP up to High GU3 3PR up to High GU3 3QE up to High GU3 3RN up to High GU3 3RQ up to High GU3 3SB up to High GU3 1JA up to Medium GU3 1ND up to Medium GU3 1NJ up to Medium GU3 2BN up to Medium GU3 3HF up to Medium GU3 1BG up to Low GU3 2DE up to Low GU3 2EE up to Low GU3 3BT up to Low GU3 3HB up to Low GU3 3RB up to Low

Rivers and flooding history near GU3

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

Guildford on the River Wey — 3.3 km away, highest on record 3.88m
Shalford on the River Tillingbourne — 4.7 km away, highest on record 1.16m
Bramley on the Cranleigh Waters — 5.8 km away, highest on record 3.99m
Woking South on the Hoe Stream — 6.1 km away, highest on record 2.22m

110 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (40 at warning level or above), most recently 6 February 2026. Warnings cover flood areas, not individual addresses.

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

06JanuaryNewYear2003 (2002) — about 3.1 km from the centre
December 2000 flooding — about 5.8 km from the centre
February 1990 flooding — about 3 km from the centre

🏠 Buying or renting in GU3? 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

GU2 GU4 GU1 GU5 GU6 GU7 GU8 GU9

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.