Boundary-Line is supplied as a national vector tiles set in a single MBTiles file (combined from individual PBF tiles). This is a lightweight set of tiles that are efficient to render in supported software, provide high-resolution data and give a seamless experience when zooming in and out. The data is supplied in Web Mercator projection (ESPG:3857).
The vector tiles schema is detailed in the following page.
All layers and their attributes are mapped within zoom levels 9 to 14, but not within zoom levels 0 to 8
Layer Name: Boundary_line_ceremonial_counties
Attribute Name:
name
Layer Name: Boundary_line_historic_counties
Attribute Name:
name
Layer Name: community_ward
Attribute Names:
name
community
Layer Name: county
Attribute Names:
name
area_code
global_polygon_id
census_code
hectares
non_inland_area
area_type_code
Layer Name: county_electoral_division
Attribute Name:
name
area_code
global_polygon_id
census_code
hectares
non_inland_area
area_type_code
Layer Name: country_region
Attribute Names:
name
area_code
global_polygon_id
census_code
hectares
non_inland_area
area_type_code
Layer Name: district_borough_unitary
Attribute Names:
name
area_code
global_polygon_id
census_code
hectares
non_inland_area
area_type_code
Layer Name: district_borough_unitary_ward
Attribute Names:
name
area_code
global_polygon_id
census_code
hectares
non_inland_area
area_type_code
Layer Name: english_region
Attribute Names:
name
area_code
global_polygon_id
census_code
hectares
non_inland_area
area_type_code
Layer Name: greater_london_const
Attribute Names:
name
area_code
global_polygon_id
census_code
hectares
non_inland_area
area_type_code
Layer Name: high_water
Attribute Names:
file_name
global_link_id
Layer Name: historic_european_region
Attribute Name:
name
Layer Name: parish
Attribute Names:
name
area_code
global_polygon_id
census_code
hectares
non_inland_area
area_type_code
Layer Name: polling_districts_england
Attribute Names:
pd_id
county
district_borough
ward
parish
Layer Name: scotland_and_wales_const
Attribute Names:
name
area_code
global_polygon_id
census_code
hectares
non_inland_area
area_type_code
Layer Name: scotland_and_wales_region
Attribute Names:
name
area_code
global_polygon_id
census_code
hectares
non_inland_area
area_type_code
Layer Name: unitary_electoral_division
Attribute Names:
name
area_code
global_polygon_id
census_code
hectares
non_inland_area
area_type_code
Layer Name: westminster_const
Attribute Names:
name
area_code
global_polygon_id
census_code
hectares
non_inland_area
area_type_code