HA4
Outer Postcode Area • 1,827 PostcodesHillingdon
London
Investment Metrics & Statutory Planning for HA4
Synthesized capital values, real sold £/sq ft, estimated gross rental yields, Article 4 HMO restrictions, and ground stability risks for active property investors.
HM Land Registry & EPC Data
Strong Cashflow Potential
Standard C3-C4 PD Rights
British Geological Survey
Property Investment Yields & Valuation Metrics
HM Land Registry Price Paid & ONS Private Rental Statistics
Planning Policy Constraints & Article 4
DLUHC Planning Platform & LPA Registers
Ground Stability, Subsidence & Radon Hazards
BGS & Coal Authority Public Registers
Data quality: Aggregated across 1,827 constituent postcodes
1827 official/live sections, 0 fallback sections, 0 missing or limited sections. Generated 15 Sept 2026, 07:53.
Frequently Asked Questions
Official open-data answers about safety, schools, connectivity, and living in HA4.
Is HA4 a good place to live?
HA4 in Hillingdon scores 83.4/100 overall in the Postcodewise area report, which combines safety, schools, transport, housing, demographics, environment and connectivity from official open data.
What is the crime rate in HA4?
The HA4 report shows recent police-recorded crime levels and trends in Hillingdon, sourced from Police.uk street-level data.
What schools are near HA4?
The HA4 schools report lists nearby primary and secondary schools with Ofsted-linked ratings and distances.
How well connected is HA4?
The HA4 report covers nearby transport links, broadband speeds and mobile coverage for the area.
Explore nearby areas
Open area reports for postcodes and streets close to this one.
