OS Places API derives data from our AddressBase Premium dataset – Great Britain’s most detailed view of addresses and their life cycles, including everything from planning to creation to change of use and demolition. The API therefore includes:
Data from the Local Land and Property Gazetteer and One Scotland Gazetteer, which includes information captured under statutory obligation through the Street Name and Numbering process.
The Royal Mail’s data, providing a Postcode Address File (PAF) containing the UDPRN and the delivery point address record.
Up to date cross references to our large-scale data, such as OS MasterMap Topography Layer and Highways Network via the TOID – but also references to objects that don’t have postal addresses, as well as coordinates that have been verified via our surveyors.