— ACRERIGHT AREA REPORT · POSTCODE SECTOR
Home › St Albans › AL3 7 · postcode sector
4,964 people · median £585,000 · St Albans
High wellbeing
St Albans Council · Liberal Democrat-controlled 44/56 seats · 79% · OCD 2026
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Environment This postcode sector
Air quality
µg/m³ annual mean · DEFRA
Ground checks
Surface water 1-in-1005.4%
Flood zone1.6% of postcodes
RadonAffected Area (up to 3–5%)
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 buildings104
Conservation areas1
Green belt83.4%
Green spaces167
Historic England · OS Open Greenspace
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