Combined Authorities Boundaries in England, March 2017 with Multiple Resolutions

Digital vector boundaries for Combined Authorities in England as of March 2017. The dataset contains five boundary versions, including full resolution and four levels of generalisation clipped to the coastline. It is provided by the Office for National Statistics and contains Ordnance Survey and ONS intellectual property rights.

Use Cases

• Create thematic maps of English regions based on Combined Authorities boundaries.
• Perform spatial analysis using coastline-clipped boundaries to exclude marine areas.
• Optimise map rendering performance by selecting an appropriate generalised boundary version (e.g., 20m, 200m, 500m).
• Integrate administrative boundaries with other geospatial datasets for England.

Strengths

• Offers five distinct boundary versions, from full resolution (1.5-2 MB) to ultra generalised (22 KB).
• Specifies the clipping methodology to the Mean High Water mark for coastline consistency.
• Includes direct REST service URLs for INSPIRE View and Feature Download services.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data is a snapshot from March 2017; administrative boundaries may have changed.

Provenance

Source

Office for National Statistics

Collection Method

Likely digitised from official administrative records.

Time Range

March 2017

Freshness

Last updated 2026-07-08 13:33:06.298421; freshness should be verified.

Geography

England