FloodRadar
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Up to Low likelihood
Properties in LN4 3PG 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% | 2 | 2 |
| 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.
The ground here sits at about 8 m above sea level and falls 7 m across the surrounding 800 m. Surface water reaching this point runs off ground lying to the west, 3.9 m higher.
Because properties in the low likelihood band; 2 recorded floods nearby; 79 official warnings since 2006.
The map above shows the real EA rivers & sea likelihood cells around LN4 3PG. 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 | Recorded flood | Approx. distance |
|---|---|---|
| Dec 2013 | LNA_2013_12_Tidal_Witham_Haven | ~51.3 km |
| Jan 1953 | LNA_1953_01_Lincolnshire Coastline | ~44.5 km |
EA Recorded Flood Outlines — absence of a record never proves a place has not flooded. The full report tests whether any extent covered the exact spot.
Babet (2023, 4 warnings nearby) · Dennis (2020, 3 warnings nearby) · Chandra (2026, 2 warnings nearby) · Henk (2024, 2 warnings nearby)
| Gauge | River | Distance | Typical high | Highest on record |
|---|---|---|---|---|
| Ruskington Beck | Ruskington Beck | 6.8 km | 0.70 m | 1.34 m |
| Billinghay | Billinghay Skirth | 7.1 km | 2.24 m | 2.80 m |
| Kirkstead Bridge | River Witham | 9.4 km | 2.90 m | 3.07 m |
| Leasingham Mill | River Slea | 9.4 km | 0.50 m | 1.12 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 |
|---|---|---|---|---|
| Metheringham Stw | Car Dyke Meth'gham Delph Rive | 3.7 km | 93 (2024) | 1,237 |
| Walcott - The Drift Pumping Station | Trib Of Car Dyke | 4.2 km | 34 (2024) | 242 |
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 LN4 3PG — all in the LN4 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. 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 LN4 district.