This
file contains the ONS UPRN Directory (ONSUD) for Great Britain as at September 2019. The ONSUD relates the Unique Property Reference Number (UPRN) for each GB
address from AddressBase® Epoch 69 to a range of current statutory
administrative, electoral, health and other statistical geographies. The ONSUD
is produced by ONS Geography, who provide geographic support to the Office for
National Statistics (ONS) and geographic services used by other organisations.
The ONSUD is issued every 6 weeks and is designed to complement the Ordnance
Survey AddressBase® product. For further technical information about this file,
please refer to the User Guide document contained within the downloadable zip
file. Please note that this product contains Royal Mail, Gridlink, Ordnance
Survey and ONS Intellectual Property Rights. (File Size - 458 MB)