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This file contains the digital vector boundaries for Combined Authorities, in England, as at December 2025.
The boundaries available are: (BUC) Ultra generalised (500m) - clipped to the coastline (Mean High Water mark).
Contains both Ordnance Survey and ONS Intellectual Property Rights.
REST URL of Feature Access Service – https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/Combined_Authorities_December_2025_Boundaries_EN_BUC/FeatureServer REST URL of WFS Server – https://dservices1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/services/Combined_Authorities_(December_2025)_Boundaries_EN_BUC/WFSServer?request=getcapabilities&service=wfs REST URL of MapServer – https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/Combined_Authorities_(December_2025)_Boundaries_EN_BUC/MapServer
All datasets from Office for National Statistics
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ons.geography@ons.gov.uk
FOI.Team@ons.gov.uk
