— ACRERIGHT AREA REPORT · POSTCODE SECTOR
Home › Harrow › HA3 6 · postcode sector
10,241 people · median £551,000 · Harrow
Harrow Council · Conservative-controlled 42/55 seats · 76% · OCD 2026
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Environment This postcode sector
Air quality
µg/m³ annual mean · DEFRA
Ground checks
Surface water 1-in-1007.1%
Flood zone0% of postcodes
Radonup to <1% of homes
Historic landfill4 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 buildings30
Conservation areas2
Green belt40.4%
Green spaces62
Historic England · OS Open Greenspace
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