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Falmouth, Cornwall
Up to Medium likelihood
Properties in TR11 3DB 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% | 5 | 3 |
| Low | 0.1% – 1% | 12 | 5 |
| 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 3 m above sea level and falls 66 m across the surrounding 800 m. Surface water reaching this point runs off ground lying to the west-north-west, 59.5 m higher.
Because properties in the medium likelihood band; 6 recorded floods nearby; 24 official warnings since 2006.
The map above shows the real EA rivers & sea likelihood cells around TR11 3DB. 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 |
|---|---|---|
| Sep 2024 | Falmouth | ~0.0 km |
| Dec 2020 | CW9657 - Flushing | ~0.9 km |
| Nov 2019 | CW9610 - Falmouth | ~0.1 km |
| Mar 2018 | CW9560 - Castle Beach, Falmouth | ~1.4 km |
| May 2017 | CW9539 - Falmouth | ~0.0 km |
| Sep 2016 | CW9513 - Falmouth | ~0.0 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.
Ashley (2024, 5 warnings nearby) · Lilian (2024, 2 warnings nearby)
| Gauge | River | Distance | Typical high | Highest on record |
|---|---|---|---|---|
| Ponsanooth | River Kennall | 6.4 km | 0.49 m | 0.83 m |
| Bissoe | Carnon River | 8.9 km | 0.86 m | 1.45 m |
| Truro | River Kenwyn | 12.1 km | 1.30 m | 2.12 m |
| Trenear | River Cober | 13.3 km | 1.00 m | 1.32 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 |
|---|---|---|---|---|
| Cso At Killigrew Street | Penryn River(e) | 0.1 km | 51 (2024) | 57 |
| Cso In High Street | Penryn River(e) | 0.1 km | 92 (2024) | 250 |
| Prince Of Wales Pumping Station | The Penryn River (e) | 0.1 km | 0 (2024) | 0 |
| Cso At Market Street | Penryn River | 0.1 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 3DB — 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. Place names: Contains OS data © Crown copyright and database rights 2026. Contains Royal Mail data © Royal Mail copyright and database right 2026. Contains National Statistics data © Crown copyright and database right 2026. Licensed under the Open Government Licence v3.0. 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.