Westminster Constituency
England, Scotland and Wales are divided into parliamentary constituencies for voting purposes to elect members (MPs) to the Westminster Parliament. Parliamentary constituencies are made up of combinations of wards (or electoral divisions in Wales).
Temporal filtering
The earliest date on which you can request a one-off snapshot of a date in the past for data in this feature type is 29 September 2022.
Feature type attributes
The following sub-sections provide details about the attributes included with this feature type, their data types in the different output formats, and other important metadata about them.
osid
Primary identifier for the feature. The OSID is a Globally Unique Identifier (GUID) and requires no centralised authority to ensure uniqueness. Note that the same OSID can occur in more than one feature type when a single feature is represented multiple times in the OS NGD.
Data Types: String (GPKG), String (CSV)
Nullable: false
Max Length: 36
OS Select+Build Filterable: No
Data Schema Version: 1.0
toid
Topographic identifier (TOID) of the feature, as published in the OS MasterMap suite of products.
Data Types: String (GPKG), String (CSV)
Nullable: true
Max Length: 20
OS Select+Build Filterable: Yes
Data Schema Version: 1.0
versiondate
Date when the version was last updated.
Data Types: Date (GPKG), Date (CSV)
Nullable: false
OS Select+Build Filterable: No
Data Schema Version: 1.0
versionavailablefromdate
The date this version of the feature became the latest version.
Data Types: DateTime (GPKG), DateTime (CSV)
Nullable: false
OS Select+Build Filterable: No
Data Schema Version: 1.0
versionavailabletodate
The date this version of the feature was superseded by an update or ceased to exist.
Data Types: DateTime (GPKG), DateTime (CSV)
Nullable: true
OS Select+Build Filterable: No
Data Schema Version: 1.0
changetype
The type of change that generated a new version of the feature.
Data Types: String (GPKG), String (CSV)
Nullable: false
Code List Name: changetypevalue
Max Length: 50
OS Select+Build Filterable: Yes
Data Schema Version: 1.0
geometry
Geometry for the feature.
Data Types: Geometry (GPKG), WKT (CSV)
Nullable: false
OS Select+Build Filterable: No
Data Schema Version: 1.0
Geometry Type: MultiPolygon
geometry_area
The measured area of the geometry in square metres.
Data Types: Float (GPKG), Real (CSV)
Nullable: false
Precision: 18
Scale: 6
OS Select+Build Filterable: No
Data Schema Version: 1.0
theme
The OS NGD theme to which this feature belongs.
Data Types: String (GPKG), String (CSV)
Nullable: false
Code List Name: themevalue
Max Length: 40
OS Select+Build Filterable: No
Data Schema Version: 1.0
description
A single descriptive value intended for a quick understanding of what the feature represents.
Data Types: String (GPKG), String (CSV)
Nullable: false
Code List Name: westminsterconstituencydescriptionvalue
Max Length: 50
OS Select+Build Filterable: Yes
Data Schema Version: 1.0
name1_text
Name assigned to identify the feature.
Data Types: String (GPKG), String (CSV)
Nullable: false
Max Length: 254
OS Select+Build Filterable: Yes
Data Schema Version: 1.0
name1_language
The language of name1, provided as a 3-digit ISO 639-2 code ('eng, 'cym', 'gla').
Data Types: String (GPKG), String (CSV)
Nullable: true
Code List Name: languagevalue
Max Length: 3
OS Select+Build Filterable: No
Data Schema Version: 1.0
name2_text
The alternative language name assigned to identify the feature.
Data Types: String (GPKG), String (CSV)
Nullable: true
Max Length: 254
OS Select+Build Filterable: Yes
Data Schema Version: 1.0
name2_language
The language of name2, provided as a 3-digit ISO 639-2 code ('eng, 'cym', 'gla').
Data Types: String (GPKG), String (CSV)
Nullable: true
Code List Name: languagevalue
Max Length: 3
OS Select+Build Filterable: No
Data Schema Version: 1.0
gsscode
Set to the census / Government Statistical Service (GSS) Code for the boundary, for example, E10000014.
Data Types: String (GPKG), String (CSV)
Nullable: false
Max Length: 10
OS Select+Build Filterable: Yes
Data Schema Version: 1.0
boundarytype
A single description value for boundary type.
Data Types: String (GPKG), String (CSV)
Nullable: false
Code List Name: boundarytypevalue
Max Length: 50
OS Select+Build Filterable: Yes
Data Schema Version: 1.0
landareahectares
The inland area of the feature in hectares.
Data Types: Float (GPKG), Real (CSV)
Nullable: false
Precision: 15
Scale: 6
OS Select+Build Filterable: No
Data Schema Version: 1.0
tidalareahectares
The non-inland area in hectares.
Data Types: Float (GPKG), Real (CSV)
Nullable: false
Precision: 15
Scale: 6
OS Select+Build Filterable: No
Data Schema Version: 1.0
totalareahectares
The total area in hectares.
Data Types: Float (GPKG), Real (CSV)
Nullable: false
Precision: 15
Scale: 6
OS Select+Build Filterable: No
Data Schema Version: 1.0
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