Does Leyton flood?

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

Ordnance Survey places 78 postcodes in Leyton 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 2,505 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 Leyton

Environment Agency gauges within 10 km of Leyton watch River Lee, Ching Brook, River Roding, Pymmes Brook, Salmon Brook, Thames Tideway, Loxford Water.

• Walthamstow, Low Hall Structure
  River Lee · 1.3 km away 0.06 m
  controlled by a sluice or weir · 29 min ago
• Lea Bridge
  River Lee · 1.5 km away 5.88 m
  normal range · 29 min ago
• Walthamstow
  Ching Brook · 4.2 km away 1.07 m
  normal range · 29 min ago
• Redbridge
  River Roding · 4.9 km away No recent reading
  last reported 26 Oct 2026 10:00
• Edmonton, Silver Street
  Pymmes Brook · 5.9 km away 0.02 m
  normal range · 29 min ago
• Chingford
  Ching Brook · 6.4 km away 0.23 m
  normal range · 29 min ago
• Edmonton Green
  Salmon Brook · 6.9 km away 0.12 m
  normal range · 29 min ago
• Tower Pier Tidal
  Thames Tideway · 7.5 km away -2.17 mAOD
  rises and falls with the tide · 29 min ago
• Powys Lane
  Pymmes Brook · 8.3 km away 0.69 m
  below normal · 29 min ago
• Charlton Tidal
  Thames Tideway · 8.5 km away -2.35 mAOD
  rises and falls with the tide · 29 min ago
• Arnos Park Structure
  Pymmes Brook · 8.7 km away No recent reading
• Seven Kings Park
  Loxford Water · 9.3 km away 0.11 m
  normal range · 2 h ago

Distances are from the middle of Leyton'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 Leyton

34 Environment Agency flood warning areas lie within 10 km of Leyton. The EA has issued 154 flood warnings and alerts for them since 2006, most recently on 25 Oct 2026.

• The Lower River Lee at Hackney and Walthamstow including Lea Bridge, Hackney Marsh and Hackney Wick
  no warning on record since 2006 0.5 km
• The Lower River Lee at Stratford including Mill Meads
  no warning on record since 2006 3.6 km
• The Pymmes Brook at Upper Edmonton and Tottenham
  no warning on record since 2006 4.2 km
• The Ching Brook in the London Borough of Waltham Forest, including Highams Park
  3 warnings and alerts since 2006, latest Nov 2024 4.6 km
• River Thames at Mill Meads and East Plaistow including Star Lane, Plaistow, Mill Meads and south Stratford Marshes
  no warning on record since 2006 5.4 km
• The River Roding in Redbridge including Woodford, Wanstead and Ilford
  1 warning or alert since 2006, latest Dec 2019 5.6 km
• The Lower River Lee from West Ham to Canning Town
  no warning on record since 2006 6.3 km
• River Thames at the Isle of Dogs north of South Dock including Canary Wharf, Blackwall, South Bromley, Poplar and Limehouse
  no warning on record since 2006 6.4 km
• The Salmons Brook at Grange Park and Lower Edmonton including World's End
  no warning on record since 2006 6.5 km
• The Pymmes Brook from Bowes Park to Edmonton
  no warning on record since 2006 7.1 km
• The Lower River Lee at Enfield including Edmonton and Tottenham
  no warning on record since 2006 7.1 km
• River Thames from the Limehouse Basin to Blackfriar's Bridge including Shadwell, Wapping, St. Katherines Dock and Upper Thames Street
  no warning on record since 2006 7.2 km

Recorded floods near Leyton

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

• 10 Jan 2024 — EA06JanuaryWinter2024 Drainage
• 17 Aug 2022 — EA06AugustSummer2022 Main river
• 14 Jan 2021 — eaJanuaryWinter2021
• 10 May 2020 — ea06MaySpring2020 Main river
• 9 Feb 2009 — ea06FebruaryWinter2009 Main river
• 26 Nov 2006 — 06OctoberAutumn2006 Main river
• 14 Jun 2006 — EA06JuneSummer2006 Main river
• 1 Oct 2000 — 06OctoberAutumn2000 Main river
• 1 Jan 2000 — 06DecemberWinter2000 Main river
• 1 Oct 1993 — 06OctoberAutumn1993 Main river
• 1 Jan 1993 — 06OctoberAutumn1993 Main river
• 1 Nov 1991 — 06NovemberWinter1991 Main river

…and 3 earlier recorded floods on the map.

Rainfall near Leyton

Leyton gets about 609 mm of rain a year on average (wettest month October, 66 mm; driest March, 35 mm). That is 48% drier than the UK as a whole, which averages 1,163 mm a year. Source: Met Office HadUK-Grid 1991–2020 (5 km grid), 1.0 km from the place centre.

The nearest rain gauge, Rainfall station (5.0 km away), recorded 477.6 mm in the last 24 hours and 521.0 mm in the last 7 days (latest reading 29 min ago).

At-risk postcodes in Leyton

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

High likelihood (4)

Medium likelihood (10)

Low likelihood (47)

Very low likelihood (17)

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.