Does CO4 5QA flood?

Not in an at-risk area

CO4 5QA 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 CO4 or get the full picture below.

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Get the full flood report for CO4 5QA — £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 CO4 5QA

FloodRadarProperty Flood-Risk Report
CO4 5QA
Moderate flood risk — investigate further

Because 4 recorded floods nearby; 111 official warnings since 2006.

A 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
···
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 CO4 5QA. 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 CO4 5QA

111
flood alerts & warnings within 10 km since 2007
51
of them full flood warnings or severe warnings
2026
most recent warning nearby (2026-02-17)

Warnings cover flood areas, not individual addresses.

Recorded floods near this postcode

DateRecorded floodApprox. distance
Dec 2013 2013 Flood Outline ~45.6 km
Jan 2009 2009 Flood Outline ~24.1 km
Jan 1968 1968 September Flood Outline ~17.9 km
Feb 1947 1947 Flood Outline ~29.9 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, 11 warnings nearby) · Henk (2024, 6 warnings nearby) · Babet (2023, 5 warnings nearby) · Ciaran (2023, 2 warnings nearby)

The rivers that matter for CO4 5QA

GaugeRiverDistanceTypical highHighest on record
Langham River Stour 0.5 km 1.30 m 2.03 m
POLSTEAD FGS GSM 5.3 km
Polstead River Box 5.3 km 0.68 m 1.25 m
Hadleigh River Brett 8.5 km 0.85 m 1.95 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
Dedham Water Recycling Centre Dedham Mill Tail-trib Rv Stour 3.5 km 3 (2024) 7
Mill Lane Ps River Box 4.8 km 17 (2024) 124

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

Flood defences

8 mapped flood-defence assets within 500 m — nearest ~58 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

At-risk postcodes near CO4 5QA — all in the CO4 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 CO4 district.