FloodRadar
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Up to High likelihood
Properties in PL17 8BY 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 band | Annual chance | Properties | Of which homes |
|---|---|---|---|
| High | greater than 3.3% | 3 | 1 |
| Medium | 1% – 3.3% | 0 | 0 |
| Low | 0.1% – 1% | 0 | 0 |
| Very low | below 0.1% | 0 | 0 |
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 here sits at about 7 m above sea level and falls 94 m across the surrounding 800 m. Surface water reaching this point runs off ground lying to the south-south-west, 83.9 m higher.
Because properties in the high likelihood band; 1 recorded flood nearby; 90 official warnings since 2006.
The map above shows the real EA rivers & sea likelihood cells around PL17 8BY. 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 2009 | CW8825 - Cotehele | ~0.7 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, 12 warnings nearby) · Bert (2024, 3 warnings nearby) · Bram (2025, 2 warnings nearby) · Dennis (2020, 2 warnings nearby)
| Gauge | River | Distance | Typical high | Highest on record |
|---|---|---|---|---|
| Gunnislake | River Tamar | 4.4 km | 3.00 m | 4.47 m |
| Ludbrook | River Tavy | 5.9 km | 1.80 m | 3.48 m |
| Pillaton | River Lynher | 7.4 km | 1.50 m | 2.44 m |
| Tavistock | River Tavy | 9.2 km | 1.65 m | 3.05 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 |
|---|---|---|---|---|
| Metherell Wwtw | Tributary Of River Tamar | 1.2 km | 175 (2024) | 3,935 |
| Metherell Wwtw | Tributary Of River Tamar | 1.2 km | 42 (2024) | 702 |
| St Dominick Wwtw | River Tamar Estuary | 1.6 km | 131 (2024) | 1,481 |
| Lower Kelly Pscso/eo | River Tamar (e) | 1.8 km | 26 (2024) | 54 |
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 PL17 8BY — all in the PL17 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 PL17 district.