OS Open UPRN
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An open dataset enabling linking, sharing and visualisation of data related to Unique Property Reference Numbers (UPRNs).
This product is updated every six weeks, in-line with the AddressBase Epoch dates published on the 'Product Refresh Dates' page.
UPRNs are the authoritative identifier used to uniquely identify addressable locations in Great Britain; they are essential for bringing property and address information together.
OS Open UPRN is part of the OS Open Identifiers 'Family' of products, which includes four OpenData products: OS Open Linked Identifiers, OS Open TOID, OS Open UPRN and OS Open USRN. The products within this family allow you to easily share information held against a range of identifiers and to link together information associated with these identifiers.
A Unique Property Reference Number (UPRN) is a unique numeric identifier for every addressable location in Great Britain, found in OS's AddressBase products.
UPRNs are assigned to approximately 40 million addressable locations, which may be any kind of building, residential or commercial. The addressable location may also be an object that might not have a ‘postal ’ address – such as a bus shelter or an electricity sub-station.
OS Open UPRN will enable you to share and link data related to UPRNs, which you can spatially analyse and visualise using the accurate location.
The UPRNs in OS Open UPRN are primarily allocated by Local Authorities, under their legal duty to maintain this information. This means you can have confidence you're accessing an authoritative source of these identifiers.
The UPRN is a persistent identifier to an addressable location that is never re-used, allowing you to confidently manage associated information to an address.
Access to this OS OpenData product is free through the OS Data Hub.
OS Open UPRN data is available through our OS Features API, building on the OS Open UPRN product with detailed data from a range of OS Products and services, providing a rich array of attribute filters and combinations. Find out more about our OS API platform here to unlock access to rich geospatial data and integrate OS data and services into your applications.
To access additional documentation and resources relating to this product, please refer to the following:
New users should start with the Overview to gain high-level insight into the product. The Technical Specification contains detailed technical insights. We recommend referring to the OS Open Identifiers Family information page in combination with the Overview and Technical Specification documents for OS Open UPRN.
