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Up to Low likelihood
Properties in HG4 4PJ sit in the Environment Agency's Low 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% | 0 | 0 |
| Medium | 1% – 3.3% | 0 | 0 |
| Low | 0.1% – 1% | 1 | 0 |
| Very low | below 0.1% | 0 | 0 |
Over a 25-year mortgage, a property in a low-likelihood area has a 2–22% chance of flooding at least once.
HG4 4PJ gets about 968 mm of rain a year on average (wettest month December, 106 mm; driest May, 62 mm). That is 17% 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), 2.0 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 178 m above sea level and falls 108 m across the surrounding 800 m. Surface water reaching this point runs off ground lying to the south-south-west, 64.9 m higher.
The river map has no watercourse within 1 km of the centre of HG4 4PJ.
That means this spot is not on the river map, not that there is no water here: Ordnance Survey’s river map (OS Open Rivers) leaves out small streams, ditches and culverts. Contains OS data © Crown copyright and database rights 2026.
Because properties in the low likelihood band; 6 recorded flood outlines mapped nearby; 35 official warnings since 2006.
The map above shows the real EA rivers & sea likelihood cells around HG4 4PJ. 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 |
|---|---|---|
| Jan 2021 | 2021 January Flood Incident - Storm Christoph | ~57.8 km |
| Feb 2020 | 2020 February Flood Incident - Storm Dennis | ~33.6 km |
| Feb 2020 | 2020 February Flood Incident - Storm Ciara | ~37.6 km |
| Dec 2015 | December 2015 Flood Event | ~45.6 km |
| Jan 1995 | 1995 Flood Event | ~2.5 km |
| Jan 1982 | January 1982 Event | ~2.0 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.
Jocelyn (2024, 2 warnings nearby) ▶ replay it here · Ciara (2020, 2 warnings nearby) ▶ replay it here · Dennis (2020, 2 warnings nearby) ▶ replay it here · Isha (2024, 1 warnings nearby) ▶ replay it here
| Gauge | River | Distance | Typical high | Highest on record |
|---|---|---|---|---|
| Kilgram | River Ure | 2.8 km | 3.50 m | 5.64 m |
| Masham, Swinney Beck | Swinney Beck | 6.4 km | 0.35 m | 1.02 m |
| Masham | River Ure | 6.5 km | 2.10 m | 3.57 m |
| Catterick Garrison | Sour Beck | 13.5 km | 0.33 m | 0.61 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 |
|---|---|---|---|---|
| Ellingstring Cso | Tributary Of Broad Beck | 1.1 km | 0 (2024) | 0 |
| East Witton Cso | Trib Of River Ure | 2.9 km | 42 (2024) | 415 |
Official annual EDM figures — a water-quality signal for local watercourses, not a property flood-risk factor.
No mapped flood-defence assets within 500 m of the postcode centre. 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.
At-risk postcodes near HG4 4PJ — all in the HG4 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. 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 HG4 district.