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Does Smallfield flood?

Surrey
53postcodes in the EA rivers-and-sea dataset
12river gauges within 10 km
9years with a mapped flood record within 5 km
🏠 Thinking of buying in Smallfield? Get the detailed Property Flood-Risk Report for any Smallfield 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 Smallfield

Ordnance Survey places 53 postcodes in Smallfield 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 870 properties in the EA dataset's likelihood bands.

EA likelihood bandPostcodes (worst band)Properties in the EA datasetof which homes
High38504435
Medium47169
Low11295283
Very low000
All bands53870787

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 Smallfield

Environment Agency gauges within 10 km of Smallfield watch Burstow Stream, Gatwick Stream, River Mole, Salfords Stream, Eden Tributary Medway, Redhill Brook.

Distances are from the middle of Smallfield'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 Smallfield

The nearest watercourse on the river map is Weatherhill Stream, about 750 m from the middle of Smallfield's at-risk postcodes. It flows into Burstow Stream about 660 m 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 Weatherhill Stream nearest the middle of Smallfield'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 Smallfield

14 Environment Agency flood warning areas lie within 10 km of Smallfield. The EA has issued 186 flood warnings and alerts for them since 2006, most recently on 23 Oct 2026.

Recorded floods near Smallfield

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

…and 11 earlier recorded floods on the map.

Rainfall near Smallfield

Smallfield gets about 797 mm of rain a year on average (wettest month November, 93 mm; driest March, 49 mm). That is 31% drier than the UK as a whole, which averages 1,163 mm a year. Source: Met Office HadUK-Grid 1991–2020 (5 km grid), 1.3 km from the place centre.

The nearest rain gauge, Rainfall station (1.2 km away), recorded 2.7 mm in the last 24 hours and 67.0 mm in the last 7 days (latest reading 27 min ago).

At-risk postcodes in Smallfield

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

High likelihood (38)

RH6 9ARRH6 9GPRH6 9GZRH6 9JERH6 9JHRH6 9JLRH6 9JNRH6 9JQRH6 9JWRH6 9LYRH6 9LZRH6 9NARH6 9NDRH6 9NERH6 9NGRH6 9NHRH6 9NJRH6 9NLRH6 9NPRH6 9NQRH6 9NRRH6 9NTRH6 9NURH6 9NWRH6 9NYRH6 9NZRH6 9PDRH6 9PLRH6 9PTRH6 9PXRH6 9PYRH6 9QLRH6 9QNRH6 9QPRH6 9QRRH6 9QWRH6 9RERH6 9RF

Medium likelihood (4)

RH6 9ENRH6 9LTRH6 9LURH6 9QT

Low likelihood (11)

RH6 9GHRH6 9JDRH6 9NNRH6 9PBRH6 9QJRH6 9QSRH6 9QURH6 9QYRH6 9QZRH6 9RBRH6 9RS

Postcode districts

RH6 · 53

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