Does East Horsley flood?

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

Ordnance Survey places 22 postcodes in East Horsley 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 276 properties in the EA dataset's likelihood bands.

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 East Horsley

Environment Agency gauges within 10 km of East Horsley watch East Clandon Stream, River Mole, River Wey, Law Brook, Rive Ditch, Hoe Stream.

• Send
  East Clandon Stream · 5.1 km away 0.77 mASD
  normal range · steady · 32 min ago
• Downside Bridge
  River Mole · 5.4 km away 1.04 mASD
  normal range · steady · 32 min ago
• Newark Weir Structure
  River Wey · 6.2 km away 20.47 mASD
  controlled by a sluice or weir · 1 h ago
• Leatherhead
  River Mole · 7.2 km away 1.07 mASD
  normal range · steady · 32 min ago
• Old Woking
  River Wey · 8.0 km away 2.37 mASD
  normal range · steady · 1 h ago
• Brooklands
  River Wey · 8.0 km away No recent reading
  last reported 11 Sep 2026 10:00
• Albury
  Law Brook · 8.8 km away 0.09 mASD
  normal range · steady · 47 min ago
• West Byfleet Bridge
  Rive Ditch · 8.8 km away No recent reading
  last reported 11 Sep 2026 11:00
• Dorking Structure
  River Mole · 9.6 km away 0.11 mASD
  controlled by a sluice or weir · 32 min ago
• Woking South
  Hoe Stream · 9.8 km away 0.31 mASD
  normal range · steady · 1 h ago

Distances are from the middle of East Horsley'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.

Flood warning areas near East Horsley

16 Environment Agency flood warning areas lie within 10 km of East Horsley. The EA has issued 249 flood warnings and alerts for them since 2006, most recently on 15 Feb 2026.

• East Clandon Stream at Send, Surrey 5.3 km
• River Mole at Stoke D'Abernon, Cobham and South Hersham, Surrey
  5 warnings and alerts since 2006, latest Feb 2020 5.6 km
• Properties closest to the River Wey between Walsham Meadow and Byfleet town, including the Walsham Lock and Ockham Mill, Common Meadows and Plough Bridge areas of Byfleet
  2 warnings and alerts since 2006, latest Feb 2020 5.9 km
• Lower River Wey including Old Woking, Byfleet, and Weybridge and the West Clandon Stream at Send
  25 warnings and alerts since 2006, latest Feb 2026 6.6 km
• River Mole at Leatherhead and Fetcham, Surrey
  17 warnings and alerts since 2006, latest Jan 2026 6.7 km
• Tillingbourne including Chilworth and Shalford
  25 warnings and alerts since 2006, latest Feb 2026 7.1 km
• River Wey at Wisley, Pyrford and Byfleet including, Wisley Village, Pyrford Lock and Marina, the Church Road, Oyster Lane, High Road & Fullerton Road and Brooklands areas of Byfleet
  2 warnings and alerts since 2006, latest Jun 2014 7.1 km
• River Wey at Old Woking and properties around Lower Westfield, Surrey
  4 warnings and alerts since 2006, latest Jan 2024 7.2 km
• River Mole and its tributaries from Kinnersley Manor to South Hersham, including Sidlow, Leigh, Betchworth, Brockham, Pixham, Dorking, Mickleham, Leatherhead, Fetcham, Stoke D'Abernon and Cobham
  150 warnings and alerts since 2006, latest Feb 2026 7.4 km
• Hoe Stream at Woking including Mayford, Surrey
  4 warnings and alerts since 2006, latest Feb 2025 7.4 km
• River Mole at Dorking and Mickleham, Surrey
  7 warnings and alerts since 2006, latest Jan 2024 7.6 km
• Pipp Brook at Wotton, Wescott and Dorking 7.7 km

Recorded floods near East Horsley

Floods whose mapped extent (EA Recorded Flood Outlines) reached within ~5 km of East Horsley, most recent first. Absence of a record does not mean a place has never flooded. See them on the map →

• 23 Dec 2013 — Cobham_Dec2013 Main river
• 23 Dec 2013 — Cobham2_Dec2013 Main river
• 23 Dec 2013 — Cobham3_Dec2013 Main river
• 23 Dec 2013 — LeatherheadSTW_Dec2013 Main river
• 1 Jan 2003 — 06JanuaryNewYear2003 Main river
• 23 Dec 2002 — 06JanuaryNewYear2003 Sewer
• 1 Jan 2000 — 06DecemberWinter2000 Main river
• 1 Feb 1990 — 06FebruaryWinter1990 Main river
• 14 Sep 1968 — 06SeptemberAutumn1968 Main river
• 1 Jan 1968 — 06SeptemberAutumn1968 Main river

Rainfall near East Horsley

The nearest rain gauge, Rainfall station (6.9 km away), recorded 1.4 mm in the last 24 hours and 23.3 mm in the last 7 days (latest reading 32 min ago).

At-risk postcodes in East Horsley

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

High likelihood (12)

Medium likelihood (2)

Low likelihood (8)

Postcode districts

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.