Data sources & licences
Everything rielty shows comes from open public data. What "15.8M homes" means: the sold-price history of 15.8 million properties — not 15.8 million homes for sale. Live listings come separately, from participating estate agents.
| Source | Used for | Licence |
|---|---|---|
| HM Land Registry price paid + INSPIRE | properties, sales history since 1995, plot sizes | OGL v3 |
| EPC register | floor area, energy ratings, bedroom estimates | OGL v3 |
| GIAS + Welsh Government schools | school locations, rating tier, primary/secondary phase | OGL v3 |
| OS / OpenStreetMap / Forestry England | stations, woodland, coastline, lakes, rivers, walking network, shops, post offices, pharmacies, GP surgeries, hospitals | OGL / ODbL |
| DfT NaPTAN | bus and coach stop locations | OGL v3 |
| ONS postcode lookup & boundaries | postcode geography, area polygons | OGL v3 |
| data.police.uk | monthly area-level crime context, Dec 2010 onward | OGL v3 |
| Ofcom Connected Nations (fixed postcode coverage, residential) | broadband availability as a % of premises per postcode, July 2024 snapshot | OGL v3 |
| planning.data.gov.uk (MHCLG) + Historic England | conservation areas, listed buildings, green belt, Article 4 directions, tree preservation zones | OGL v3 |
| DEFRA strategic noise mapping, Round 4 (2022) | road and rail noise bands (Lden) | OGL v3 |
| OS Open Names | place names, settlement types, county hierarchy | OGL v3 |
| OS Open UPRN | exact coordinates for every home with a UPRN, in place of a postcode centroid | OGL v3 |
| ONS National Statistics UPRN Lookup (NSUL) | evaluated for matching sold homes without a UPRN to their postcode's UPRN | OGL v3 |
| PlanIt (planit.org.uk) | planning applications from local authority registers | aggregator |
| Bank of England, UK HPI | interest-rate and market context on price history | OGL / public |
Honesty rules we hold ourselves to
- Absence of data never becomes a claim — no crime data means no crime sentence.
- Sold prices are always labelled "market example, not for sale".
- Crime is shown as area-level context in plain words (how the crime data works) — never "safe" or "dangerous" labels.
- Broadband is the percentage of premises in the postcode that can order a service — never a promise about one home, and never the speed you would get.
- Estimated fields say so — "4 (est.) beds" is an estimate from EPC records.
- Nothing is ranked by payment.
Contains HM Land Registry data © Crown copyright and database right 2026. Contains OS data © Crown copyright and database right 2026. Contains Royal Mail data © Royal Mail copyright and database right 2026. Source: Office for National Statistics licensed under the Open Government Licence v3.0. Contains public sector information licensed under the Open Government Licence v3.0 (data.police.uk). Contains Ofcom Connected Nations data licensed under the Open Government Licence v3.0. Contains planning constraint data from planning.data.gov.uk (Ministry of Housing, Communities and Local Government) and Historic England licensed under the Open Government Licence v3.0. Planning data via PlanIt (planit.org.uk). Contains DEFRA strategic noise mapping data; © Department for Environment, Food & Rural Affairs copyright and/or database right 2023, licensed under the Open Government Licence v3.0. Contains OS Open Names data licensed under the Open Government Licence v3.0. Map data © OpenStreetMap contributors.