Does GU33 flood?

Yes — parts of the GU33 district carry real flood risk: 7 of its 18 at-risk postcodes reach the Environment Agency's High likelihood band. The GU33 postcode district covers Liss, Whitehill Hogmoor & Greatham, close to Princes Marsh, Petersfield, Standford, and surrounding villages in parts of Hampshire and West Sussex.

18 postcodes in the GU33 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 7 high, 2 medium, 9 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 GU33 postcodes are at risk?

GU33 6LA up to High GU33 7AE up to High GU33 7AF up to High GU33 7AG up to High GU33 7BB up to High GU33 7DW up to High GU33 7LU up to High GU33 7AD up to Medium GU33 7BH up to Medium GU33 6HH up to Low GU33 6JG up to Low GU33 7AA up to Low GU33 7AU up to Low GU33 7BD up to Low GU33 7BJ up to Low GU33 7FF up to Low GU33 7JX up to Low GU33 7JY up to Low

Rivers and flooding history near GU33

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

Princes Marsh on the River Rother — 1.1 km away, highest on record 1.96m
Winchester Road on the Petersfield Stream — 5.6 km away, highest on record 66.22m
Borough Grove on the Petersfield Stream — 6.2 km away, highest on record 60.30m
Passfield Mill on the River Wey — 7.7 km away, highest on record 1.71m

21 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (13 at warning level or above), most recently 27 January 2026. Warnings cover flood areas, not individual addresses.

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

East Hampshire Winter 13/14 (2014) — about 17.1 km from the centre

🏠 Buying or renting in GU33? 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

GU32 GU34 GU31 GU35 GU30 GU29 GU28 GU27

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.