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 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.
Because 4 recorded floods nearby; 138 official warnings since 2006.
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.
Warnings cover flood areas, not individual addresses.
| Date | Recorded flood | Approx. 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.
2013-14 UK winter floods (2013, 13 warnings nearby) · Barra (2021, 4 warnings nearby) · Ashley (2024, 4 warnings nearby) · Dudley (2022, 4 warnings nearby)
| Gauge | River | Distance | Typical high | Highest 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.
| Overflow | Discharges into | Distance | Spills | Hours |
|---|---|---|---|---|
| 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.
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 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.