Data Sources & Attribution
Every report shows, per layer, whether it was generated from live data or a sample. Sources used by Article4Check UK:
| Layer | Publisher | Licence |
|---|---|---|
| Postcode → coordinates, council, country | postcodes.io (ONS Postcode Directory) | OGL v3 / OS OpenData |
| Article 4 Direction areas (polygons) | planning.data.gov.uk (MHCLG) — article-4-direction-area | OGL v3 |
| Article 4 Directions (legal instruments, documents) | planning.data.gov.uk (MHCLG) — article-4-direction | OGL v3 |
| Council records | planning.data.gov.uk (MHCLG) — local-authority | OGL v3 |
| Permitted development & HMO rules | GPDO 2015 Sch.2 · Use Classes Order 1987 · TCPA 1990 · Housing Act 2004 | Legislation (OGL / OPSI) |
Contains public sector information licensed under the Open Government Licence v3.0. Contains OS data © Crown copyright and database right; contains Royal Mail data © Royal Mail copyright and database right; contains National Statistics data © Crown copyright and database right (via postcodes.io / ONS Postcode Directory).