UPRN stands for Unique Property Reference Number and was created by the Ordnance Survey (OS). It consists of numbers of up to 12 digits in length. Local governments in the UK have allocated a unique number for each land or property.
A UPRN will consist of comprehensive data of a property, from the planning stages to demolition.
Every land and property in the UK is allocated a Unique Property Reference Number (UPRN) by local authorities. Each address is recorded in one database, and even if changes occur to these addresses, a full history of the report is available. This makes it easier to understand, maintain and manage the address data.
The UPRN is similar to an identity number. Each address can be accurately identified using the UPRN. This data is authoritative and unique coming from trusted local experts.
The UPRN is what all properties have in common. If any other datasets fail to recognise an address, the UPRN will always be the unique reference point. Organisations can link records, exchange and keep their data consistent in any internal tools.
UPRNs are allocated by local authorities and Ordnance Survey (OS).
Local Authorities. Local authorities have the statutory permission to name and number every street and property in Great Britain and also allocate UPRNs to other objects.
Ordnance Survey. OS identifies features in the landscape that might not have a ‘normal' address, and includes them in its AddressBase products.
Read more about The UPRN lifecycle.
The UPRN stays unique to each property and will remain in its existing format. Any information added will be linked to matching records in different databases.
UPRN data is now returned in our standard address results. You can now retrieve UPRN identifiers for premises in Great Britain at no extra cost with our API.
UDPRN is a unique premise identifier produced by Royal Mail in conjunction with the Postcode Address File (PAF). This code is readily available with PAF, with more information in our UDPRN guide.
Some key differences are:
Despite these differences UDPRN and UPRN essentially perform similar functions. The provide a unique identifying number that lives and dies with a specific property in their respective datasets. Furthermore, there is a one-to-one unique link between UPRN and UDPRN numbers.
Less than 1% of the addresses on PAF do not carry a UPRN. This is because UPRN data is derived from Ordnance Survey's AddressBase products, which in turn retrieves addressing data from local authorities. Upon receiving an address, it is matched with the address on PAF. If a PAF address is not matched in this process, it does not receive a UPRN.
Here are some instances where that could happen:
Our Multiple Residence addresses currently shares the same UPRN as its parent premise (i.e. each sub-occupancy will have the UPRN of its parent premise).