Does DT3 flood?

Yes — parts of the DT3 district carry real flood risk: 46 of its 105 at-risk postcodes reach the Environment Agency's High likelihood band. The DT3 postcode district covers Littlemoor & Preston, Chickerell, Radipole, close to Weymouth, Upwey, Bank Barrow, and surrounding villages in Dorset.

105 postcodes in the DT3 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 46 high, 15 medium, 33 low, 11 very 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 DT3 postcodes are at risk?

DT3 4AN up to High DT3 4AS up to High DT3 4AT up to High DT3 4BJ up to High DT3 4BN up to High DT3 4DW up to High DT3 4ED up to High DT3 4FN up to High DT3 4HN up to High DT3 4HZ up to High DT3 4JG up to High DT3 4JH up to High DT3 5BT up to High DT3 5BX up to High DT3 5DL up to High DT3 5DN up to High DT3 5DP up to High DT3 5DX up to High DT3 5EA up to High DT3 5HB up to High DT3 5QB up to High DT3 5QD up to High DT3 5QE up to High DT3 6BD up to High DT3 6BT up to High DT3 6BW up to High DT3 6DD up to High DT3 6HA up to High DT3 6LA up to High DT3 6LB up to High DT3 6LD up to High DT3 6LF up to High DT3 6LN up to High DT3 6LW up to High DT3 6NH up to High DT3 6NJ up to High DT3 6NL up to High DT3 6NP up to High DT3 6NR up to High DT3 6NW up to High DT3 6PN up to High DT3 6PP up to High DT3 6PU up to High DT3 6PW up to High DT3 6PY up to High DT3 6QS up to High DT3 4AJ up to Medium DT3 4BW up to Medium DT3 4FD up to Medium DT3 5DE up to Medium DT3 6AA up to Medium DT3 6BN up to Medium DT3 6DB up to Medium DT3 6JE up to Medium DT3 6JG up to Medium DT3 6JN up to Medium DT3 6JU up to Medium DT3 6JX up to Medium DT3 6LE up to Medium DT3 6LZ up to Medium DT3 6PX up to Medium DT3 4AP up to Low DT3 4AR up to Low DT3 4AU up to Low DT3 4AW up to Low DT3 4AY up to Low DT3 4BH up to Low DT3 4FZ up to Low DT3 4GE up to Low DT3 4LA up to Low DT3 5NX up to Low DT3 5NY up to Low DT3 5PH up to Low DT3 5PJ up to Low DT3 5PW up to Low DT3 5QN up to Low DT3 5QR up to Low DT3 5QS up to Low DT3 5QT up to Low DT3 5QW up to Low DT3 5QZ up to Low DT3 5RN up to Low DT3 5RU up to Low DT3 5RX up to Low DT3 5SZ up to Low DT3 6AZ up to Low DT3 6BB up to Low DT3 6BG up to Low DT3 6BJ up to Low DT3 6DR up to Low DT3 6JB up to Low DT3 6JT up to Low DT3 6RS up to Low DT3 6SX up to Low DT3 5AA up to Very low DT3 5AD up to Very low DT3 5BJ up to Very low DT3 5FA up to Very low DT3 5HY up to Very low DT3 5HZ up to Very low DT3 5JR up to Very low DT3 5JS up to Very low DT3 5JT up to Very low DT3 5JU up to Very low DT3 6HE up to Very low

Rivers and flooding history near DT3

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

409 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (221 at warning level or above), most recently 27 March 2026. Warnings cover flood areas, not individual addresses.

🏠 Buying or renting in DT3? 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

DT2 DT4 DT1 DT5 DT6 DT7 DT8 DT9

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.