ONS UPRN Directory: UK Address Links to Administrative Geographies

The ONS UPRN Directory (ONSUD) relates Unique Property Reference Numbers for Great Britain addresses to current statutory administrative, electoral, health, and other statistical geographies. It is produced by ONS Geography and issued every 6 weeks to complement the Ordnance Survey AddressBase® product. The file for May 2025 is 503 MB in size.

Use Cases

• Link individual addresses to electoral wards based on the UPRN-to-geography mapping.
• Analyze health service coverage by relating patient addresses to health authority geographies.
• Enrich address data with administrative region codes for statistical reporting.
• Join property-level data to higher-level geographies for spatial aggregation.

Strengths

• File size is 503 MB, indicating substantial data volume.
• Updated every 6 weeks, suggesting relatively high temporal resolution.
• Produced by ONS Geography, an authoritative source for UK geographic data.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Description metadata is limited; actual data quality requires manual inspection after download.

Provenance

Source

Office for National Statistics (ONS) Geography

Collection Method

Produced by ONS Geography to complement Ordnance Survey AddressBase®.

Time Range

Snapshot as of May 2025.

Freshness

Last updated 2025-08-11 08:25:02; freshness should be verified.

Geography

Great Britain