ONS UPRN Directory (April 2023)

489 MB of data linking every address in Great Britain to its Unique Property Reference Number (UPRN) and a range of statutory geographies. The ONS UPRN Directory (ONSUD) is produced by ONS Geography and is updated every six weeks to complement Ordnance Survey's AddressBase® product. This version captures the state of addresses and their administrative, electoral, health, and statistical geographies as of April 2023.

Use Cases

• Enrich address data with administrative boundaries for spatial analysis based on the linked statutory geographies.
• Standardize property identification across different datasets using the Unique Property Reference Number (UPRN).
• Support electoral or public health research by relating addresses to their corresponding electoral and health geographies.
• Perform demographic or statistical modeling at various geographic levels using the linked statistical geographies.

Strengths

• File size is explicitly stated as 489 MB, indicating a substantial dataset.
• Update frequency is defined as every six weeks, suggesting a maintained data product.
• Links addresses to multiple current statutory geographies (administrative, electoral, health, statistical).
• 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.
• Data may reflect geographic and temporal bias inherent to the source and the April 2023 snapshot.

Provenance

Source

Office for National Statistics (ONS) Geography, using Ordnance Survey AddressBase® Epoch 100.

Collection Method

Produced by ONS Geography to relate UPRNs to statutory geographies.

Time Range

Snapshot as of April 2023.

Freshness

Last updated 2025-08-11 08:16:37; freshness should be verified as the core data is from April 2023.

Geography

Great Britain.