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.