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Yarm, Stockton-on-Tees
Up to High likelihood
Properties in TS15 9QX sit in the Environment Agency's High flood-likelihood band (worst property). The band is the worst found in the postcode — it describes the land around properties (defence-adjusted, rivers & sea), not any single address, and not today's conditions.
| Likelihood band | Annual chance | Properties | Of which homes |
|---|---|---|---|
| High | greater than 3.3% | 1 | 0 |
| Medium | 1% – 3.3% | 11 | 11 |
| Low | 0.1% – 1% | 0 | 0 |
| Very low | below 0.1% | 0 | 0 |
Over a 25-year mortgage, a property in a high-likelihood area has at least a 57% chance of flooding at least once.
TS15 9QX gets about 635 mm of rain a year on average (wettest month August, 71 mm; driest March, 36 mm). That is 45% drier than the UK as a whole, which averages 1,163 mm a year.
A thirty-year average for the surrounding area, not a measurement at this address and not a flood risk on its own: a dry area floods when a storm sits over it, and a wet one may drain away perfectly well. Source: Met Office HadUK-Grid 1991–2020 (5 km grid), 1.2 km away. Average rainfall: HadUK-Grid v1.3.2, Met Office. Contains public sector information licensed under the Open Government Licence v3.0.
The ground here sits at about 6 m above sea level and falls 28 m across the surrounding 800 m. Surface water reaching this point runs off ground lying to the north-north-east, 27.9 m higher.
The nearest watercourse on the river map is the River Tees, about 30 m from the centre of TS15 9QX. It flows on to the sea.
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 the River Tees nearest the centre of TS15 9QX. 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.
Because properties in the high likelihood band; 6 recorded flood outlines mapped nearby; 97 official warnings since 2006.
The map above shows the real EA rivers & sea likelihood cells around TS15 9QX. The small panels are illustrative previews of the report's per-layer map views — the full report draws each layer for real, plus recorded extents, defences and a building picker on an interactive map.
Warnings cover flood areas, not individual addresses.
| Date | Mapped flood extent | Approx. distance |
|---|---|---|
| Feb 2020 | 2020 February Flood Incident - Storm Ciara | ~44.9 km |
| Feb 2020 | Storm Ciara, Yarm, Feb 2020 | ~0.3 km |
| Jun 2007 | Yarm | ~0.6 km |
| Jan 1995 | 1995 Flood Event | ~0.7 km |
| Mar 1968 | Yarm March 1968 | ~0.5 km |
| Jan 1963 | Yarm | ~1.0 km |
These are extents the Environment Agency has mapped, not a list of every flood. Records, not floods: no outline on the record is not evidence a place has not flooded. The full report tests whether any extent covered the exact spot.
2013-14 UK winter floods (2013, 5 warnings nearby) ▶ replay it here · Desmond (2015, 4 warnings nearby) ▶ replay it here · Angus (2016, 2 warnings nearby) ▶ replay it here · Ciara (2020, 2 warnings nearby) ▶ replay it here
| Gauge | River | Distance | Typical high | Highest on record |
|---|---|---|---|---|
| Yarm | River Tees | 0.2 km | 1.80 m | 4.07 m |
| Stockton Hartburn Bridge | Hartburn Beck | 4.2 km | 1.25 m | 2.94 m |
| Foxton Bridge | River Leven | 5.4 km | 1.80 m | 2.63 m |
| Low Moor | River Tees | 5.8 km | 4.50 m | 6.32 m |
Live levels, predictions and rain-response behaviour are on each gauge's page and in the property report.
| Overflow | Discharges into | Distance | Spills | Hours |
|---|---|---|---|---|
| Aislaby Road Pumping Station | Tees Estuary | 0.1 km | 30 (2025) | 154 |
| Yarm Bridge Cso | River Tees | 0.2 km | 6 (2025) | 0 |
| Egglescliffe Bank Cso | Tees Estuary | 0.3 km | 47 (2025) | 56 |
| West Street Sps | River Tees | 0.3 km | 9 (2025) | 48 |
Official annual EDM figures — a water-quality signal for local watercourses, not a property flood-risk factor.
70 mapped flood-defence assets within 500 m — nearest ~11 m (natural high ground, wall, flood gate, bridge abutment). Defences reduce risk, never remove it.
The interactive flood-risk map with a building picker (your exact house, not the postcode), the 2050s climate view, surface-water and planning flood zones at your building, exact recorded-flood distances, year-by-year warning charts, watercourses including culverted streams, an insurance outlook with the Flood Re rules, and a printable document with every dataset receipt — start with the free preview, unlock for £19.
Flooded here before? Log it and see what your floods had in common.
At-risk postcodes near TS15 9QX — all in the TS15 district.
© 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. 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. Recorded Flood Outlines and warning history © Environment Agency copyright and/or database right 2025. Storm-overflow figures: EA Event Duration Monitoring (England); live overflow status © the water companies, incl. Dŵr Cymru Welsh Water and Scottish Water. Flood defences © Environment Agency (OGL v3). This page summarises public area-level data — it is not a flood-risk survey and not a substitute for the official GOV.UK service. All data sources & licences. More postcodes: the TS15 district.