AL9
Outer Postcode Area • 618 PostcodesWorking on listings or site checks?
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Investment Metrics & Statutory Planning for AL9
Sold price per square foot, indicative gross yield, Article 4 status and ground stability, from official open data.
HM Land Registry & EPC Data
Area rent ÷ area price, indicative
No Article 4 or conservation area recorded
British Geological Survey
Property Investment Yields & Valuation Metrics
HM Land Registry Price Paid & ONS Private Rental Statistics
Planning constraints
planning.data.gov.uk (DLUHC) & Historic England
- Article 4 direction
- Not published
- Conservation area
- None recorded
- Tree preservation zone
- Not published
- Welwyn Hatfield has not published Article 4 direction areas to planning.data.gov.uk, so they could not be checked.
- Not in a conservation area recorded by the council.
- 1 listed building(s) within 100m (nearest: Grade II THE COTTAGE, 84m). Work affecting their setting may need extra consent.
Spatial screening uses the postcode centroid. Properties on boundaries must be checked against the council’s own maps.
Ground Stability, Subsidence & Radon Hazards
BGS & Coal Authority Public Registers
Data quality: Aggregated across 618 constituent postcodes
618 official/live sections, 0 fallback sections, 0 missing or limited sections. Generated 9 Oct 2026, 04:10.
Frequently Asked Questions
Official open-data answers about safety, schools, connectivity, and living in AL9.
Is AL9 a good place to live?
AL9 in Welwyn Hatfield scores 43.5/100 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 AL9?
The AL9 report shows recent police-recorded crime levels and trends in Welwyn Hatfield, sourced from Police.uk street-level data.
What schools are near AL9?
The AL9 schools report lists nearby primary and secondary schools with Ofsted-linked ratings and distances.
How well connected is AL9?
The AL9 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.