— ACRERIGHT AREA REPORT · NEIGHBOURHOOD
Home › Three Rivers › Watford Heath · neighbourhood
3,466 people · median £712,500 · Three Rivers
Fast broadband
Three Rivers Council · Liberal Democrat minority — no overall control 18/39 seats · 46% · OCD 2026
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Environment This neighbourhood
Air quality
µg/m³ annual mean · DEFRA
Ground checks
Surface water 1-in-1003.4%
Flood zone3.7% of postcodes
RadonAffected Area (up to 5–10%)
Historic landfill140 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 buildings6
Conservation areas2
Green belt52.8%
Green spaces194
Historic England · OS Open Greenspace
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