FloodRadar
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Up to Medium likelihood
Properties in TR11 5PY sit in the Environment Agency's Medium 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% | 1 | 1 |
| Low | 0.1% – 1% | 1 | 0 |
| Very low | below 0.1% | 0 | 0 |
Over a 25-year mortgage, a property in a medium-likelihood area has a 22–57% chance of flooding at least once.
The ground here sits at about 82 m above sea level and falls 87 m across the surrounding 800 m. Surface water reaching this point runs off ground lying to the north, 2.2 m higher.
Because properties in the medium likelihood band; 70 official warnings since 2006.
The map above shows the real EA rivers & sea likelihood cells around TR11 5PY. 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.
Ashley (2024, 5 warnings nearby) · 2013-14 UK winter floods (2013, 2 warnings nearby) · Bram (2025, 2 warnings nearby) · Henk (2024, 2 warnings nearby)
| Gauge | River | Distance | Typical high | Highest on record |
|---|---|---|---|---|
| Trenear | River Cober | 6.7 km | 1.00 m | 1.32 m |
| Boscadjack | River Cober | 6.7 km | 1.10 m | 1.80 m |
| Ponsanooth | River Kennall | 8.2 km | 0.49 m | 0.83 m |
| Helston County Bridge | River Cober | 8.8 km | 1.70 m | 2.11 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 |
|---|---|---|---|---|
| Constantine Stw | Lestraines River(s) | 0.9 km | 37 (2024) | 42 |
| Penbothidno Cso | Polwheveral Stream(s) | 0.9 km | 6 (2024) | 1 |
| Constantine Bridge Pumping Station | Nanceroy Stream (s) | 1.3 km | 40 (2024) | 381 |
| Shipwrights Pumping Station | The Helford Creek(e) | 3.9 km | 0 (2024) | 0 |
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 TR11 5PY — all in the TR11 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 TR11 district.