National Statistics UPRN Lookup User Guide: Methodology and Data Quality

A 136KB user guide document from the Government Digital Service details the National Statistics UPRN Lookup (NSUL). The guide covers directory content, data currency, methodology for assigning areas to postcodes, data formats, quality, limitations, and recent changes. It was last updated on the platform on August 11, 2025.

Use Cases

• Understanding the methodology for assigning geographic areas to postcodes based on the guide's description.
• Assessing data quality and limitations for address-based analysis as outlined in the document.
• Referencing details of recent changes that have impacted the NSUL data for project planning.

Strengths

• Includes a detailed user guide covering methodology, quality, and limitations.
• Document is 136KB in size, providing a focused resource.

Limitations

• The input is a guide document, not the actual lookup dataset; the data itself must be sourced separately.
• Column-level documentation for the underlying dataset is absent; field semantics must be inferred after download.
• Freshness should be verified; the guide references an October 2021 version, though the platform metadata was updated in 2025.

Provenance

Source

Government Digital Service

Collection Method

Administrative compilation and methodology documentation.

Time Range

Referenced version is from October 2021.

Freshness

Last updated 2025-08-11 07:49:46; freshness should be verified

Geography

Likely United Kingdom, based on 'National Statistics' and postcode context.