The Unique Property Reference Number (UPRN) is the unique identifier for every addressable location in Great Britain. It is generated by local authorities who have the authority to name and number every street and property and Ordnance Survey who identify places on the landscape which may not otherwise attract an address. It provides an inclusive and consistent identifier throughout a property's life cycle – from planning permission or street naming through to demolition.
In the same way that every UK citizen has a National Insurance number, every Internet-enabled device has an IP address and every book features an ISBN number, every addressable location has a UPRN.