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A dataset of unique identifiers for every addressable location in Great Britain, containing all UPRNs and geometry from AddressBase Premium.

A Unique Property Reference Number (UPRN) is a unique numeric identifier for every addressable location in Great Britain, found in OS's AddressBase products. An addressable location may be any kind of building, residential or commercial, or it may be an object that might not have a ‘postal ’ address – such as a bus shelter. 

UPRNs are the authoritative identifier used to uniquely identify addressable locations in Great Britain. Essential for bringing property and address information together. 

OS Open UPRN will enable you to share and link data related to UPRNs, which you can visualise using the accurate location.



All UPRNs which are present in AddressBase Premium, are also part of this product – so you can be sure you’re not missing out.



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. 

Identifiers you can trust

Identifiers you can trust

The UPRN is never re-used, once its allocated to an address record, that’s it, it will never change or be reused. 

Regularly updated and easy to access

Regularly updated and easy to access

OS Open UPRN is updated every six weeks aligned to AddressBase Premium. Available in CSV or GeoPackage to quickly get started with this product.


Key FeaturesWhat this product offers
FormatComma separated value (CSV) and GeoPackage
Data structurePoints
AttributesUPRN, Easting, Northing, Latitude, Longitude
Update frequencySix-weekly refresh
SupplyOnline download
CoverageGreat Britain


OS Open UPRN is available under the following licence:

Our open data products are covered by the Open Government Licence (OGL), which allows you to:

  • copy, distribute and transmit the data;
  • adapt the data; and
  • exploit the data commercially, whether by sub-licensing it, combining it with other data, or including it in your own product or application.

We simply ask that you acknowledge the copyright and the source of the data by including the following attribution statement:

  • Contains OS data © Crown copyright and database right 2021
  • Where you use Code-Point Open data, you must also use the following attribution statements:
  • Contains Royal Mail data © Royal Mail copyright and Database right 2021
  • Contains National Statistics data © Crown copyright and database right 2021

View all licences