Does OX49 flood?

Yes — parts of the OX49 district carry real flood risk: 14 of its 21 at-risk postcodes reach the Environment Agency's High likelihood band. The OX49 postcode district covers Watlington, close to Chalgrove, Ewelme, Benson, and surrounding villages in parts of Oxfordshire and Buckinghamshire.

21 postcodes in the OX49 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 14 high, 4 medium, 3 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 OX49 postcodes are at risk?

Rivers and flooding history near OX49

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

Ewelme on the Ewelme Brook — 5 km away, highest on record 0.20m
Stonor Estate on the Groundwater Level — 8.2 km away, highest on record 88.89m
Stadhampton on the River Thame — 8.4 km away, highest on record 2.63m
Dorchester on the River Thame — 10.1 km away, highest on record 3.23m

33 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (33 at warning level or above), most recently 27 November 2024. Warnings cover flood areas, not individual addresses.

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

Winter 2013/2014 (2013) — about 14.4 km from the centre

🏠 Buying or renting in OX49? 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

OX44 OX39 OX33 OX29 OX28 OX27 OX26 OX25

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.