Data sources
Updated 19 October 2026
Every figure on this site comes from public records and open data. Each page shows when it was last updated.
Planning applications
- Planning records. Planning applications and decisions that UK councils publish. Names of applicants and individual agents are removed.
- Planning London Datahub (Greater London Authority). Open Government Licence v3.0.
Protections and constraints
- planning.data.gov.uk (Ministry of Housing, Communities and Local Government): conservation areas, Article 4 directions, tree preservation orders and protected landscapes. Open Government Licence v3.0.
- National Heritage List for England: listed buildings, through planning.data.gov.uk. © Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The most publicly available up to date Historic England GIS data can be obtained from historicengland.org.uk.
Places and postcodes
- ONS Postcode Directory (Office for National Statistics). 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.
- OS Open Names. Contains OS data © Crown copyright and database right 2026.
- Maps by OpenFreeMap, with data © OpenStreetMap contributors.
Solar estimates
- PVGIS (European Commission Joint Research Centre), for solar generation. © European Union, 2001–2026, reuse authorised with acknowledgement.
- Ofgem energy price cap figures, and Octopus Energy's public tariff data, for typical electricity prices.
Energy ratings
- Energy Performance of Buildings Register (Ministry of Housing, Communities and Local Government), England and Wales. Contains public sector information licensed under the Open Government Licence v3.0. We use the ratings and property reference numbers only; addresses from the register are not shown or kept.
Roadworks
- Street Manager (Department for Transport), England, from July 2020. Contains public sector information licensed under the Open Government Licence v3.0.
Flood warnings, broadband and brownfield land
- Flood warning and flood alert areas, and flood warnings in force (Environment Agency), England. © Environment Agency copyright and/or database right. Licensed under the Open Government Licence v3.0.
- Connected Nations (Ofcom), broadband coverage by postcode for homes. Licensed under the Open Government Licence v3.0.
- Brownfield land registers (planning.data.gov.uk, from each council's register), England. Licensed under the Open Government Licence v3.0.
- Registers of licensed houses in multiple occupation published as open data by Barnet, Camden, Leicester and Epsom and Ewell councils. We show counts only; no address or name from a register is kept.
- Digital Traffic Regulation Orders (Department for Transport, from each traffic authority that has published its orders), England.
- Dropped kerb fees and rules, read from each highway authority's own web page, and the Local Authority District to County lookup (Office for National Statistics), England. Contains public sector information licensed under the Open Government Licence v3.0.
Something wrong?
If a record is wrong or missing, the council's own records are the official version. Tell us at the address on the privacy notice and we will check it.