HA3 7

13,521 people · median £510,000 · Harrow

Harrow Council · Conservative-controlled 42/55 seats · 76% · OCD 2026

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Environment This postcode sector

NO₂

15.1

— WHO guide

PM2.5

7.9

— WHO guide

µg/m³ annual mean · DEFRA

Surface water 1-in-1001.4%

Flood zone4.1% of postcodes

Radonup to <1% of homes

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 buildings12

Conservation areas0

Green belt0%

Green spaces62

Historic England · OS Open Greenspace

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