Postcodewise Methodology
Every postcode report is built from official UK open data sources. Learn how we calculate scores and what each metric means.
Safety Score
How we calculate safety scores using Police.uk crime data, LSOA-level decile rankings and 12-month rolling averages.
Schools & Education
How we identify nearby schools from the Department for Education registry, with distance and Ofsted ratings.
Broadband & Connectivity
How we report broadband availability and speed using Ofcom data, gigabit-ready predictions and network coverage.
Environment & Air Quality
How we measure environmental factors: DEFRA air quality index (DAQI), flood risk zones, and green space proximity.
Transport & Connectivity
How we report nearby transport: train stations, bus routes, walking distances to connectivity hubs.
Housing & Property
How we report housing data: property values, rental markets, house types, and neighborhood affordability.
Data Sources
All Postcodewise data comes from official UK government and public sector sources:
- • Police.uk — Crime data by street
- • Department for Education — School directory and Ofsted ratings
- • Office for National Statistics (ONS) — Postcode directory, demographics, indices of deprivation
- • Ofcom — Broadband availability and speed
- • DEFRA — Air quality, flood risk, environmental data
Have questions about our data?
Visit our Data Sources page for more detail, or check out individual postcode reports to see the metrics in action.