ONS UPRN Directory User Guide: Content, Methodology, and Quality Details

The Office for National Statistics Unique Property Reference Number (ONSUD) directory user guide provides supporting information for the underlying address dataset. This document, published by the Government Digital Service, details directory content, data currency, methodology for assigning areas to postcodes, and data quality limitations. The guide was last updated on the platform in August 2025.

Use Cases

• Understanding the methodology for assigning administrative areas to postcodes based on the described methodology section.
• Assessing data quality and limitations for analysis based on the described data quality section.
• Reviewing recent changes impacting the underlying address data based on the details of recent changes mentioned.

Strengths

• Includes a detailed user guide covering methodology and data quality, which suggests thorough documentation.
• Published by the Government Digital Service, indicating an authoritative source.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Column-level documentation is absent; field semantics must be inferred after download.

Provenance

Source

Government Digital Service

Collection Method

Likely compiled and maintained by a government statistical agency.

Time Range

January 2022 (referenced in title).

Freshness

Last updated 2025-08-11 07:49:52; freshness should be verified.

Geography

Likely United Kingdom, based on the Office for National Statistics (ONS) origin.