CM4 0

4,736 people · median £687,500 · Brentwood

High wellbeing

Brentwood Council · Liberal Democrat / Labour coalition 18/39 seats · 46% · OCD 2026

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Environment This postcode sector

NO₂

7.8

— WHO guide

PM2.5

6.9

— WHO guide

µg/m³ annual mean · DEFRA

Surface water 1-in-1002.4%

Flood zone2.4% of postcodes

Radonup to <1% of homes

Historic landfill1 site within ~1 km

EA · UKHSA/BGS · Mining Remediation Authority — indicative, not a property search

Road & rail noise bands (≥55 / ≥65 dB Lden) are being added — not yet available for this area. They cover major sources only; "not mapped" ≠ "quiet".

Defra strategic noise mapping

Listed buildings165

Conservation areas5

Green belt94.4%

Green spaces80

Historic England · OS Open Greenspace

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