Postcode Unit Area: Notional Geographic Extents for Great Britain

Polygon data represents the notional geographic extents of areas containing addresses that share a common postcode unit in Great Britain. These extents are derived from georeferenced Royal Mail Postal Address File (PAF) delivery addresses and are refined to follow linear features like roads and rivers. The dataset is designed to enable the display and analysis of data collected at the postcode unit level.

Use Cases

• Mapping demographic or business data based on postcode unit extents.
• Aggregating point-level address data to a consistent areal unit for analysis.
• Performing spatial joins between address data and other geographic boundaries.
• Visualizing the distribution of services or infrastructure across postcode units.

Strengths

• Data is derived from the authoritative Royal Mail Postal Address File (PAF).
• Extents are refined to follow real-world linear features, improving spatial accuracy.
• Cross-platform presence on eu_open_data and uk_data suggests official importance and reliability.

Limitations

• Critical metadata is missing or conflicting: one source lists a last update of 2026-03-25, while another shows 'None'.
• No column names, row counts, or file size information is provided, limiting understanding of the data structure.
• The license and author information are not specified, creating uncertainty for reuse.

Provenance

Source

Government Digital Service (via Royal Mail PAF)

Collection Method

Derived from georeferenced Royal Mail Postal Address File (PAF) delivery addresses.

Freshness

2026-03-25 16:51:58.805317

Geography

Great Britain