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Does GU15 flood?

Yes — parts of the GU15 district carry real flood risk: 19 of its 42 at-risk postcodes reach the Environment Agency's High likelihood band. The GU15 postcode district covers Watchetts, St Michaels, St Pauls, Town, close to Blackwater, Cove, Mytchett, and surrounding villages in parts of Hampshire and Surrey.

42 postcodes in the GU15 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 19 high, 5 medium, 18 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 GU15 postcodes are at risk?

GU15 2QD up to High GU15 2QH up to High GU15 2RG up to High GU15 2RH up to High GU15 2RL up to High GU15 2RT up to High GU15 2RX up to High GU15 2RY up to High GU15 2RZ up to High GU15 2SA up to High GU15 3BU up to High GU15 3DB up to High GU15 3DF up to High GU15 3DT up to High GU15 3HA up to High GU15 3LB up to High GU15 3XS up to High GU15 3YL up to High GU15 4NL up to High GU15 2PL up to Medium GU15 2RS up to Medium GU15 2TA up to Medium GU15 3AD up to Medium GU15 3BT up to Medium GU15 2BW up to Low GU15 2RJ up to Low GU15 2RR up to Low GU15 2RW up to Low GU15 2SE up to Low GU15 2SH up to Low GU15 2SJ up to Low GU15 2TD up to Low GU15 2TF up to Low GU15 3BN up to Low GU15 3BS up to Low GU15 3BW up to Low GU15 3DH up to Low GU15 3DL up to Low GU15 3DN up to Low GU15 3JP up to Low GU15 3UF up to Low GU15 3YT up to Low

Rivers and flooding history near GU15

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

124 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006, most recently 21 January 2026. Warnings cover flood areas, not individual addresses.

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

🏠 Buying or renting in GU15? 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

GU14 GU16 GU17 GU12 GU18 GU11 GU19 GU10

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.