Does CA20 1NH flood?

Not in an at-risk area

CA20 1NH has no properties in any Environment Agency recorded flood-risk band. That is good news — but it is area-level and never proof a place cannot flood (surface-water and sewer flooding are assessed separately). See the at-risk postcodes in CA20 or get the full picture below.

The ground around CA20 1NH

The ground here sits at about 16 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-east, 9.0 m higher.

Shaded relief map of the ground around CA201NH, computed from Environment Agency LiDAR. The ground here sits at about 16 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-east, 9.0 m higher.
Shaded relief of the bare ground within about 400 m of CA20 1NH, 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 CA20 1NH — £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 CA20 1NH

FloodRadarProperty Flood-Risk Report
CA20 1NH
Moderate flood risk — investigate further

Because 4 recorded floods nearby; 138 official warnings since 2006.

A 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: No ⚑ In flood zone 2 or 3: ···
Rivers & sea
···
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 CA20 1NH. 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 CA20 1NH

138
flood alerts & warnings within 10 km since 2006
26
of them full flood warnings or severe warnings
2026
most recent warning nearby (2026-04-04)

Warnings cover flood areas, not individual addresses.

Recorded floods near this postcode

DateRecorded floodApprox. distance
Feb 2020 Storm Ciara 09_02_2020 ~37.8 km
Aug 2012 Seascale 30th August 2012 ~0.2 km
Feb 2002 Flooding 01_02_2002 ~12.5 km
Feb 1997 Flooding 01_02_1997 ~26.8 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

2013-14 UK winter floods (2013, 13 warnings nearby) · Barra (2021, 4 warnings nearby) · Ashley (2024, 4 warnings nearby) · Dudley (2022, 4 warnings nearby)

The rivers that matter for CA20 1NH

GaugeRiverDistanceTypical highHighest on record
Calder Hall River Calder 3.5 km 0.52 m 2.22 m
Braystones River Ehen 5.9 km 1.70 m 2.41 m
Cropple How River Esk 9.6 km 1.88 m 2.36 m
Galesyke River Irt 9.8 km 0.85 m 2.01 m

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
Seascale Wwtw Irish Sea 0.1 km 62 (2024) 628
Meadowfield Gosforth Cso Esk 3.6 km 14 (2024) 6
Calder Bridge Wwtw River Calder 3.9 km 51 (2024) 597
Gosforth Wwtw Hare Beck 4.1 km 3 (2024) 7

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

Flood defences

No mapped flood-defence assets within 500 m of the postcode centre. 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

At-risk postcodes near CA20 1NH — all in the CA20 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 CA20 district.