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Does LN11 0NX flood?

Up to High likelihood

Properties in LN11 0NX 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 bandAnnual chancePropertiesOf which homes
Highgreater than 3.3%60
Medium1% – 3.3%217
Low0.1% – 1%00
Very lowbelow 0.1%50

Over a 25-year mortgage, a property in a high-likelihood area has at least a 57% chance of flooding at least once.

The ground around LN11 0NX

The ground here sits at about 2 m above sea level and falls 4 m across the surrounding 800 m. Surface water reaching this point runs off ground lying to the east-south-east, 1.2 m higher.

Shaded relief map of the ground around LN110NX, computed from Environment Agency LiDAR. The ground here sits at about 2 m above sea level and falls 4 m across the surrounding 800 m. Surface water reaching this point runs off ground lying to the east-south-east, 1.2 m higher.
Shaded relief of the bare ground within about 400 m of LN11 0NX, computed from the Environment Agency's published LiDAR terrain survey. The ring marks the postcode centre, not a property. This shows the shape of the land, not a flood map — it does not include drains, culverts, walls or kerbs, and the official likelihood band above is the authoritative figure. © Environment Agency copyright and/or database right 2022. All rights reserved.
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Get the full flood report for LN11 0NX — £19 Free preview first · instant access · no account needed The detail below — flood history, warnings, rivers, overflows — is part of FloodRadar's property flood-risk report. The official band above is free; the preview shows more before you decide.

Inside the full report for LN11 0NX

FloodRadarProperty Flood-Risk Report
LN11 0NX
Elevated flood risk — professional assessment recommended

Because properties in the high likelihood band; 6 recorded floods nearby; 122 official warnings since 2006.

E Today — indicative grade (A best → E)
··· By the 2050s — EA climate scenario (in the full report)
⚑ Official warning within 10 km: Yes ⚑ Recorded flood nearby: Yes ⚑ Flood defences within 500 m: Yes ⚑ In flood zone 2 or 3: ···
Rivers & sea
Up to High
Surface water
···
Groundwater
Not assessed
Historic flooding
Recorded nearby
Warning history · flood map with building picker · 2050s view · insurance outlook · every dataset receipt — 18 sections

Flood-risk map of this area

Environment Agency flood-likelihood cells
High (>3.3%/yr) Medium Low Very low Marker = postcode centre Base map © OpenStreetMap contributors

The map above shows the real EA rivers & sea likelihood cells around LN11 0NX. 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.

Official flood warnings near LN11 0NX

122
flood alerts & warnings within 10 km since 2007
25
of them full flood warnings or severe warnings
2026
most recent warning nearby (2026-02-28)

Warnings cover flood areas, not individual addresses.

Recorded floods near this postcode

DateRecorded floodApprox. distance
Jan 2025 LNA_2025_01_Fluvial_Louth Canal ~0.4 km
Feb 2020 2020 February Flood Incident - Storm Dennis ~76.9 km
Feb 2020 2020 February Flood Incident - Storm Ciara ~81.4 km
Nov 2019 LNA_2019_11_Poulton Drain ~0.7 km
Dec 2013 LNA_2013_12_Tidal_Witham_Haven ~32.6 km
Jan 1953 LNA_1953_01_Lincolnshire Coastline ~6.3 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.

Named storms that brought flooding here

2007 UK floods (2007, 15 warnings nearby) · 2013-14 UK winter floods (2013, 3 warnings nearby) · Babet (2023, 3 warnings nearby) · Henk (2024, 2 warnings nearby)

The rivers that matter for LN11 0NX

GaugeRiverDistanceTypical highHighest on record
Louth River Lud 7.5 km 0.40 m 1.17 m
LOUTH RIVER LUD GS — 7.5 km — —
Brigsley Waithe Beck 13.5 km 0.61 m 1.25 m
BRIGSLEY WAITHE BECK GS — 13.5 km — —

Live levels, predictions and rain-response behaviour are on each gauge's page and in the property report.

Storm overflows within 5 km

OverflowDischarges intoDistanceSpillsHours
Louth Stw Louth Canal 4.5 km 53 (2024) 493

Official annual EDM figures — a water-quality signal for local watercourses, not a property flood-risk factor.

Flood defences

22 mapped flood-defence assets within 500 m — nearest ~85 m (embankment, wall, natural high ground). Defences reduce risk, never remove it.

What the full property report adds

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.

Flood risk at nearby postcodes

LN11 0BY up to Medium LN11 0DA up to Medium LN11 0DB up to Low LN11 0DD up to Low LN11 0DE up to Medium LN11 0DP up to Low LN11 0DR up to Low LN11 0DU up to Low LN11 0EH up to Very low LN11 0EJ up to High LN11 0EL up to High LN11 0EN up to Low

At-risk postcodes near LN11 0NX — all in the LN11 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 LN11 district.