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Does Surbiton flood?

Greater London
50postcodes in the EA rivers-and-sea dataset
12river gauges within 10 km
8years with a mapped flood record within 5 km
🏠 Thinking of buying in Surbiton? Get the detailed Property Flood-Risk Report for any Surbiton postcode — official risk band, recorded floods since 1703, warning history, river behaviour and nearby storm overflows. £19 one-off, instant. Learn more →

What the Environment Agency's rivers-and-sea flood-risk data says about Surbiton

Ordnance Survey places 50 postcodes in Surbiton in the Environment Agency's rivers-and-sea flood-risk dataset (Risk of Flooding from Rivers and Sea). Each postcode is counted once, under the worst band any of its properties reaches; together they hold 665 properties in the EA dataset's likelihood bands.

EA likelihood bandPostcodes (worst band)Properties in the EA datasetof which homes
High15137112
Medium12162120
Low23366293
Very low000
All bands50665525

This dataset covers flooding from rivers and the sea only — one of five flood sources. Surface water, groundwater, sewers and reservoirs are assessed separately, so a postcode missing from it is not proof that a place cannot flood. The band describes the land around properties (allowing for defences), not any single address and not today's conditions.

Rivers and live river levels near Surbiton

Environment Agency gauges within 10 km of Surbiton watch Hogsmill River, River Thames, Beverley Brook, Pyl Brook.

Distances are from the middle of Surbiton's at-risk postcodes. Tidal and structure gauges are shown as readings only — the tide and sluice gates move them, not floods. A gauge with no recent reading shows no level.

The watercourse nearest Surbiton

The nearest watercourse on the river map is Surbiton Stream, about 400 m from the middle of Surbiton's at-risk postcodes. It flows into Hogsmill River about 1.7 km downstream.

A gauge downstream shows water that has already passed this point; one upstream sees it first. Distances along the river are from the point on Surbiton Stream nearest the middle of Surbiton's at-risk postcodes. From Ordnance Survey’s river map (OS Open Rivers), which leaves out small streams, ditches and culverts, so a nearer one may exist. This describes where water goes on the map; it says nothing about flooding at any address. Contains OS data © Crown copyright and database rights 2026.

Flood warning areas near Surbiton

48 Environment Agency flood warning areas lie within 10 km of Surbiton. The EA has issued 1,535 flood warnings and alerts for them since 2006, most recently on 26 Oct 2026.

Recorded floods near Surbiton

Floods whose mapped extent (EA Recorded Flood Outlines) reached within ~5 km of Surbiton, most recent first. Records, not floods: no outline on the record is not evidence a place has not flooded. See them on the map →

Rainfall near Surbiton

Surbiton gets about 627 mm of rain a year on average (wettest month October, 69 mm; driest March, 38 mm). That is 46% drier than the UK as a whole, which averages 1,163 mm a year. Source: Met Office HadUK-Grid 1991–2020 (5 km grid), 1.4 km from the place centre.

The nearest rain gauge, Rainfall station (1.3 km away), recorded 1.9 mm in the last 24 hours and 58.0 mm in the last 7 days (latest reading 25 min ago).

At-risk postcodes in Surbiton

Every postcode Ordnance Survey places in Surbiton that appears in the EA's rivers-and-sea dataset, worst band first. Each links to its own flood-risk page.

High likelihood (15)

KT5 8ENKT5 9AAKT5 9AFKT5 9AWKT5 9BEKT5 9DAKT5 9EAKT5 9EFKT5 9HGKT5 9HQKT6 4ESKT6 4HHKT6 4HLKT6 4HNKT6 5DB

Medium likelihood (12)

KT1 3BJKT1 3BNKT5 8HRKT5 8HSKT5 8LSKT5 8LYKT5 9BPKT5 9BZKT5 9DFKT5 9HYKT6 5BZKT6 5DD

Low likelihood (23)

KT5 8DJKT5 8DLKT5 8DWKT5 9AGKT5 9AJKT5 9ALKT5 9DZKT5 9HFKT5 9HPKT5 9HRKT6 4JAKT6 5AUKT6 5BHKT6 5BXKT6 5DAKT6 5DFKT6 5PJKT6 6JJKT6 6JRKT6 6LAKT6 6QZKT6 6RBKT6 7AA

Postcode districts

KT1 · 2KT5 · 28KT6 · 20

Sources

FloodRadar summarises public flood data. It is not a flood-risk survey of any property, and it does not replace official GOV.UK flood warnings or the GOV.UK long-term flood risk service.

Flood-risk bands: © 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.

Recorded Flood Outlines, flood warning areas and warning history © Environment Agency copyright and/or database right 2025. Licensed under the Open Government Licence v3.0.

River levels and rainfall: Environment Agency real-time flood-monitoring data, updated every 15 minutes (Open Government Licence v3.0).

Average rainfall: HadUK-Grid v1.3.2, Met Office. Contains public sector information licensed under the Open Government Licence v3.0.

Place names: Contains OS data © Crown copyright and database rights 2026. Contains Royal Mail data © Royal Mail copyright and database right 2026. Contains National Statistics data © Crown copyright and database right 2026. Licensed under the Open Government Licence v3.0.

All data sources & licences