Does Sevenoaks flood?

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

Ordnance Survey places 30 postcodes in Sevenoaks 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 402 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 Sevenoaks

Environment Agency gauges within 10 km of Sevenoaks watch River Darent.

• Otford
  River Darent · 2.5 km away 0.35 m
  normal range · 29 min ago
• Park Farm
  River Darent · 5.3 km away 0.29 m
  normal range · steady · 29 min ago
• Westerham
  River Darent · 7.5 km away 0.04 m
  normal range · steady · 29 min ago

Distances are from the middle of Sevenoaks'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 Sevenoaks

1 Environment Agency flood warning area lies within 10 km of Sevenoaks. The EA has issued 4 flood warnings and alerts for them since 2006, most recently on 25 Jun 2016.

• River Darent in Westerham, Brasted, Sundridge, Chipstead, Riverhead Chevening and Sevenoaks to the M26
  4 warnings and alerts since 2006, latest Jun 2016 1.5 km

Recorded floods near Sevenoaks

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

• 23 Dec 2013 — 07302C200_Dec2013_Medway_Eden_Teise_Beult Main river
• 14 Sep 1968 — 07337E200_SEPT1968_Darent_Shoreham Main river
• 14 Sep 1968 — 07337E200_SEPT1968_Darent_Sevenokas_Childsbridge Main river
• 14 Sep 1968 — 07337E200_SEPT1968_Darent_Chipstead & Westerham Main river
• 14 Sep 1968 — 07337E200_SEPT1968_Darent_Sundridge_Combe Bank Main river
• 14 Sep 1968 — 07337E200_SEPT1968_Darent_Sevenoaks_Greatness Main river
• 14 Sep 1968 — 07302C200_SEPT1968_Medway_Edenbridge_Yalding Main river

Rainfall near Sevenoaks

Sevenoaks gets about 749 mm of rain a year on average (wettest month October, 84 mm; driest July, 46 mm). That is 36% drier than the UK as a whole, which averages 1,163 mm a year. Source: Met Office HadUK-Grid 1991–2020 (5 km grid), 1.8 km from the place centre.

The nearest rain gauge, Rainfall station (1.9 km away), recorded 2.3 mm in the last 24 hours and 59.4 mm in the last 7 days (latest reading 29 min ago).

At-risk postcodes in Sevenoaks

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

High likelihood (20)

Medium likelihood (1)

Low likelihood (9)

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.