— ACRERIGHT AREA REPORT · POSTCODE SECTOR
Home › Brentwood › CM13 3 · postcode sector
6,524 people · median £524,999 · Brentwood
High wellbeing
Brentwood Council · Liberal Democrat / Labour coalition 18/39 seats · 46% · OCD 2026
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Environment This postcode sector
Air quality
µg/m³ annual mean · DEFRA
Ground checks
Surface water 1-in-1003.8%
Flood zone5.5% of postcodes
Radonup to <1% of homes
Historic landfill7 sites within ~1 km
EA · UKHSA/BGS · Mining Remediation Authority — indicative, not a property search
Transport noise (Defra)
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
Heritage & green space
Listed buildings106
Conservation areas5
Green belt85.3%
Green spaces80
Historic England · OS Open Greenspace
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