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Does TR4 9ED flood?

Up to Medium likelihood

Properties in TR4 9ED 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 bandAnnual chancePropertiesOf which homes
Highgreater than 3.3%00
Medium1% – 3.3%10
Low0.1% – 1%00
Very lowbelow 0.1%00

Over a 25-year mortgage, a property in a medium-likelihood area has a 22–57% chance of flooding at least once.

The ground around TR4 9ED

The ground here sits at about 26 m above sea level and falls 78 m across the surrounding 800 m. Surface water reaching this point runs off ground lying to the north, 63.3 m higher.

Shaded relief map of the ground around TR49ED, computed from Environment Agency LiDAR. The ground here sits at about 26 m above sea level and falls 78 m across the surrounding 800 m. Surface water reaching this point runs off ground lying to the north, 63.3 m higher.
Shaded relief of the bare ground within about 400 m of TR4 9ED, 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 TR4 9ED — £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 TR4 9ED

FloodRadarProperty Flood-Risk Report
TR4 9ED
Moderate flood risk — investigate further

Because properties in the medium likelihood band; 4 recorded floods nearby; 47 official warnings since 2006.

D 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: Yes ⚑ In flood zone 2 or 3: ···
Rivers & sea
Up to Medium
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 TR4 9ED. 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 TR4 9ED

47
flood alerts & warnings within 10 km since 2012
30
of them full flood warnings or severe warnings
2026
most recent warning nearby (2026-05-18)

Warnings cover flood areas, not individual addresses.

Recorded floods near this postcode

DateRecorded floodApprox. distance
Jan 1994 CW8178 - Truro ~0.6 km
Dec 1993 CW8980 - Truro. New Mills Dam ~0.5 km
Dec 1993 CW8327 - Truro ~0.7 km
Oct 1988 CW8178 - Truro, New Mills, Little Canaan Bridge ~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.

Named storms that brought flooding here

2013-14 UK winter floods (2013, 6 warnings nearby) · Ashley (2024, 5 warnings nearby) · Lilian (2024, 2 warnings nearby) · Emma (2018, 2 warnings nearby)

The rivers that matter for TR4 9ED

GaugeRiverDistanceTypical highHighest on record
Truro River Kenwyn 2.1 km 1.30 m 2.12 m
Bissoe Carnon River 5.7 km 0.86 m 1.45 m
Rose in Vale Perrancombe Stream 7.1 km 1.20 m 1.10 m
Bolingey Cocks Bridge Bolingey Stream 7.5 km 1.09 m 1.53 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
Bosvigo Lane Cso Freshwater(s) 1.7 km 2 (2024) 25
Hendra Road Cso River Kenwyn(s) 2.1 km 21 (2024) 3
St Georges Road (rear Of No16) Cso River Kenwyn(s) 2.3 km 1 (2024) 0
Frances Street Cso Truro River Kenwyn(s) 2.3 km 0 (2024) 0

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

Flood defences

4 mapped flood-defence assets within 500 m — nearest ~351 m (natural high ground). 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

TR4 9EA up to High TR4 9EH up to Low TR4 9EL up to Low TR4 9HR up to High TR4 9LH up to High TR4 9LN up to High TR4 9NB up to High TR4 9PE up to High TR4 9PR up to High TR4 9QQ up to High TR4 9QR up to High TR4 9QU up to Low

At-risk postcodes near TR4 9ED — all in the TR4 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 TR4 district.