Postcodewise Methodology Hub
Every score, metric, and insight generated on Postcodewise is traceable to official UK open-government datasets. Read our transparent calculation formulas and normalization rules.
Scoring & Metric Frameworks
Select a category below to explore how we process raw public datasets into standardized percentile scores, proximity distances, and neighborhood ratings.
Safety & Crime Score
Percentile ranking derived from Police.uk street-level crime records aggregated at LSOA geographic boundary.
Schools & Education
Proximity matching using Department for Education school directory, phase classification, and Ofsted inspection judgments.
Broadband & Connectivity
Ofcom Connected Nations dataset covering speed tiers (Superfast, Ultrafast, Gigabit-ready) and mobile network coverage.
Environment & Air Quality
DEFRA daily air quality index (DAQI), Environment Agency flood risk zones, and green space distance metrics.
Transport & Transit Links
Spatial transit connectivity using OpenStreetMap nodes, bus stop proximity, railway stations, and London Underground links.
Housing & Property Prices
HM Land Registry Price Paid Dataset, sector-level transaction volume, YoY growth rate, and CAGR projection models.
Official Public Data Sources
We do not use proprietary "black-box" synthetic estimations. Every data point displayed in Postcodewise is sourced directly from licensed UK public sector providers.
Street-level crime records, outcome statuses, and LSOA boundaries.
Establishment registry, school characteristics, and Ofsted inspection judgments.
National Postcode Directory (ONSPD), Census demographics, LSOA & MSOA lookup tables.
Connected Nations broadband coverage, speed thresholds, and mobile infrastructure.
Daily Air Quality Index (DAQI), statutory flood risk maps, and land cover dataset.
Price Paid Dataset for residential property transfers across England & Wales.