The Unique Property Reference Number (UPRN) is the unique identifier for every spatial address in Great Britain. It provides a comprehensive, complete, consistent identifier throughout a property's life cycle â from planning permission through to demolition.
The UPRN contains no attribution or information (for example coordinate position) about the property, nor can information be derived from either the allocated number or the process by which it is allocated.
Ordnance Survey, GeoPlace and the Improvement Service Scotland are committed to enabling the widest possible sharing and use of UPRNs. Hence, we are allowing the royalty-free use and sub-licensing of UPRNs in perpetuity by third parties who are (or were at the time the UPRNs were extracted) licensed to use the source AddressBase data for their own internal business use.
These licensees are free to supply the UPRNs to third parties free of any licensing restrictions. The inclusion of Ordnance Survey data attributes (other than the UPRN ), or datasets derived from Ordnance Survey data, will usually require licensing. Where any doubt exists, please contact us at Ordnance Survey.
See here for the policy statement on the Ordnance Survey website.