— ACRERIGHT AREA REPORT · POSTCODE SECTOR
Home › Windsor and Maidenhead › SL4 3 · postcode sector
8,958 people · median £412,000 · Windsor and Maidenhead
Windsor and Maidenhead Council · Liberal Democrat-controlled 21/41 seats · 51% · OCD 2026
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Environment This postcode sector
Air quality
µg/m³ annual mean · DEFRA
Ground checks
Surface water 1-in-1000%
Flood zone0% of postcodes
Radonup to 1–3% of homes
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 buildings176
Conservation areas0
Green belt14.2%
Green spaces200
Historic England · OS Open Greenspace
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