Does TW8 flood?

Yes — parts of the TW8 district carry real flood risk: 25 of its 90 at-risk postcodes reach the Environment Agency's High likelihood band. The TW8 postcode district covers Syon & Brentford Lock, Chiswick Riverside, Osterley & Spring Grove, close to Brentford, Richmond, Norwood Green, and surrounding villages in parts of England and Surrey.

90 postcodes in the TW8 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 25 high, 4 medium, 49 low, 12 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 TW8 postcodes are at risk?

TW8 0AA up to High TW8 0AB up to High TW8 0AW up to High TW8 0BB up to High TW8 0DS up to High TW8 0DX up to High TW8 0DZ up to High TW8 8AE up to High TW8 8AG up to High TW8 8BD up to High TW8 8DE up to High TW8 8EH up to High TW8 8EL up to High TW8 8ER up to High TW8 8ET up to High TW8 8EU up to High TW8 8EX up to High TW8 8HP up to High TW8 8HR up to High TW8 8JA up to High TW8 8JB up to High TW8 8JF up to High TW8 8LJ up to High TW8 8QG up to High TW8 9HF up to High TW8 8BS up to Medium TW8 8EB up to Medium TW8 8EE up to Medium TW8 8ES up to Medium TW8 0AG up to Low TW8 8AQ up to Low TW8 8BL up to Low TW8 8BP up to Low TW8 8EQ up to Low TW8 8EW up to Low TW8 8EZ up to Low TW8 8FB up to Low TW8 8FD up to Low TW8 8FF up to Low TW8 8FG up to Low TW8 8FH up to Low TW8 8FJ up to Low TW8 8FL up to Low TW8 8FN up to Low TW8 8FP up to Low TW8 8FQ up to Low TW8 8FR up to Low TW8 8FS up to Low TW8 8FU up to Low TW8 8FW up to Low TW8 8FX up to Low TW8 8FY up to Low TW8 8FZ up to Low TW8 8GA up to Low TW8 8GB up to Low TW8 8GF up to Low TW8 8GG up to Low TW8 8GH up to Low TW8 8GP up to Low TW8 8GQ up to Low TW8 8GR up to Low TW8 8HE up to Low TW8 8HF up to Low TW8 8HQ up to Low TW8 8HW up to Low TW8 8HX up to Low TW8 8HY up to Low TW8 8LB up to Low TW8 8LD up to Low TW8 8LE up to Low TW8 8LF up to Low TW8 8LL up to Low TW8 8LZ up to Low TW8 9DL up to Low TW8 9DR up to Low TW8 9GX up to Low TW8 9HX up to Low TW8 9RE up to Low TW8 0AE up to Very low TW8 0AH up to Very low TW8 0AP up to Very low TW8 0BY up to Very low TW8 0BZ up to Very low TW8 0DD up to Very low TW8 0HS up to Very low TW8 8JE up to Very low TW8 8QA up to Very low TW8 8QB up to Very low TW8 8QE up to Very low TW8 8QQ up to Very low

Rivers and flooding history near TW8

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

1,298 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (21 at warning level or above), most recently 15 August 2026. Warnings cover flood areas, not individual addresses.

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

Records, not floods: no outline on the record is not evidence a place has not flooded.

🏠 Buying or renting in TW8? 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

TW7 TW9 TW10 TW11 TW5 TW12 TW4 TW13

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.