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BLPU_UPRN_Street_USRN_11
Last updated
Last updated
This page aims to provide all the information to evaluate if the method of associating the respective identifiers is suitable for your needs. These identifier relationships have been extracted from existing premium products and are presented in a standalone table for easy and open access to the information. It describes which product the information was extracted from, what information was extracted and how the source product derived the original association between the identifiers.
The relationship between the Unique Property Reference Number (UPRN) and the Unique Street Reference Number (USRN) is extracted for all live, provisional and historic BLPU records and all open roads in AddressBase Premium. All information for the associated relationship is extracted from AddressBase Premium by joining the Street table to the LPI table based on USRN, and the LPI table to the BLPU table based on UPRN. Further information on the relationship extraction, including the date of extraction and product version information, are provided in the Product Version Information File.
The relationship is determined by the Local Authorities who are responsible for Addressing and Street Name and Numbering. The Local Authorities supply this information to GeoPlace, a joint venture between Ordnance Survey and Local Government Association (LGA) who produce AddressBase.
A Confidence Value is assigned to indicate the reliability of the version information provided in this product in relation to the version of the features used to form the correlation in the original product. The Confidence Value is given for each relationship, which will always be defined in this relationship as:
| Confidence Value | Definition |
|---|---|
Version information is correct | The version information provided is the same as the version of the feature used to create the correlation. |
