Built-up Area Sub-Division Boundaries for England and Wales, 2011 Census

England and Wales digital vector boundaries for built-up area sub-divisions as of the 27 March 2011 Census day. The dataset contains generalised boundaries created using an automated approach based on a 50m grid squares and is provided by the Office for National Statistics. The data is available in multiple formats including GEOJSON, CSV, and KML.

Use Cases

• Mapping urban settlement patterns based on the 2011 built-up area sub-division boundaries.
• Analyzing population density and distribution using the generalised 50m grid square boundaries.
• Integrating census data with spatial boundaries for demographic research in England and Wales.

Strengths

• Boundaries are based on the definitive 27 March 2011 Census day.
• Created using a specific automated methodology based on a 50m grid squares.
• Provided by the authoritative Office for National Statistics.

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

Office for National Statistics

Collection Method

Automated generalisation of boundaries based on 50m grid squares.

Time Range

As at 27 March 2011

Freshness

Last updated 2026-07-08 13:30:31.988176; freshness should be verified.

Geography

England and Wales