Building
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A new building geometry which represents a single building footprint. This geometry consists of adjoining building parts which have been determined to be part of the same building. When contained in a Land Use Site, adjoining building parts will be represented by a single feature.
This page details upcoming data that will be provided for the Building Feature Type in the OS NGD from the end of March 2025 to give you early insight. Data schema version 4.0 for this feature type is currently not available through the live access services. The information on this page is as accurate as possible, but is subject to change before launch.
The earliest and latest dates on which you can request a one-off snapshot of a date in the past for the data schema versions available for this feature type are detailed in the following table:
1.0
27 September 2023
Ongoing
2.0
27 March 2024
Ongoing
3.0
25 September 2024
Ongoing
4.0
25 March 2025
Ongoing
Please see Data schema versioning for more information about versioning in the OS NGD Buildings Theme.
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.
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 (GeoJSON), String (GPKG), String (CSV)
Nullable: false
Max Length: 36
OS NGD API – Features Filterable: Yes
OS Select+Build Filterable: No
Data Schema Version: 1.0, 2.0, 3.0, 4.0
Date when the version was last updated.
Data Types: String (GeoJSON), Date (GPKG), Date (CSV)
Nullable: false
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 1.0, 2.0, 3.0, 4.0
The date this version of the feature became the latest version.
Data Types: String (GeoJSON), DateTime (GPKG), DateTime (CSV)
Nullable: false
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 1.0, 2.0, 3.0, 4.0
The date this version of the feature was superseded by an update or ceased to exist.
Data Types: String (GeoJSON), DateTime (GPKG), DateTime (CSV)
Nullable: true
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 1.0, 2.0, 3.0, 4.0
The type of change that generated a new version of the feature.
Data Types: String (GeoJSON), String (GPKG), String (CSV)
Nullable: false
Code List Name: changetypevalue
Max Length: 50
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 1.0, 2.0, 3.0, 4.0
Geometry for the feature.
Data Types: Geometry (GeoJSON), Geometry (GPKG), WKT (CSV)
Nullable: false
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 1.0, 2.0, 3.0, 4.0
Geometry Type: Polygon
The measured area of the geometry in square metres.
Data Types: Number (GeoJSON), Float (GPKG), Real (CSV)
Nullable: false
Precision: 15
Scale: 3
OS NGD API – Features Filterable: Yes
OS Select+Build Filterable: Yes
Data Schema Version: 1.0, 2.0, 3.0, 4.0
Date when the attribute was last updated.
Data Types: String (GeoJSON), Date (GPKG), Date (CSV)
Nullable: false
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 1.0, 2.0, 3.0, 4.0
The OS NGD theme to which the feature belongs.
Data Types: String (GeoJSON), String (GPKG), String (CSV)
Nullable: false
Code List Name: themevalue
Max Length: 40
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 1.0, 2.0, 3.0, 4.0
A single descriptive value intended for a quick understanding of what the feature represents.
Data Types: String (GeoJSON), String (GPKG), String (CSV)
Nullable: false
Code List Name: buildingdescriptionvalue
Max Length: 45
OS NGD API – Features Filterable: Yes
OS Select+Build Filterable: Yes
Data Schema Version: 2.0, 3.0, 4.0
Date when the description was last updated.
Data Types: String (GeoJSON), Date (GPKG), Date (CSV)
Nullable: false
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 2.0, 3.0, 4.0
The state of the building in relation to its physical condition.
Data Types: String (GeoJSON), String (GPKG), String (CSV)
Nullable: false
Code List Name: physicalstatevalue
Max Length: 20
OS NGD API – Features Filterable: Yes
OS Select+Build Filterable: Yes
Data Schema Version: 4.0
Date when the physical state was last updated.
Data Types: String (GeoJSON), Date (GPKG), Date (CSV)
Nullable: false
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 4.0
Count of building parts within the building.
Data Types: Integer (GeoJSON), Integer (GPKG), Integer (CSV)
Nullable: false
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 1.0, 2.0, 3.0, 4.0
Flag to indicate whether the building is within a Land Use Site.
Data Types: Boolean (GeoJSON), Integer (GPKG), String (CSV)
Nullable: false
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 1.0, 2.0, 3.0, 4.0
This attribute was called primarysite_id in data schema versions 1.0 and 2.0, and was renamed primarysiteid from version 3.0 onward.
Identifier of the primary site associated with the building. The primary site is the smallest site which contains the building feature.
Data Types: String (GeoJSON), String (GPKG), String (CSV)
Nullable: true
Max Length: 36
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 1.0, 2.0, 3.0, 4.0
Count of sites that the building is contained within.
Data Types: Integer (GeoJSON), Integer (GPKG), Integer (CSV)
Nullable: false
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 1.0, 2.0, 3.0, 4.0
This attribute was called mainbuilding_id in data schema versions 1.0 and 2.0, and was renamed mainbuildingid from version 3.0 onward.
Populated if the feature is not the main building. Can be used to identify the main building within the same site.
Data Types: String (GeoJSON), String (GPKG), String (CSV)
Nullable: true
Max Length: 36
OS NGD API – Features Filterable: Yes
OS Select+Build Filterable: No
Data Schema Version: 1.0, 2.0, 3.0, 4.0
This attribute was called ismainbuilding in data schema versions 1.0 and 2.0, and was renamed mainbuildingid_ismainbuilding from version 3.0 onward.
Flag to indicate whether the building is the primary building within the site. This has been captured by OS surveyors as the most normal building a casual visitor would report to within the Land Use Site.
Data Types: String (GeoJSON), String (GPKG), String (CSV)
Nullable: true
Code List Name: yesnovalue
Max Length: 5
OS NGD API – Features Filterable: Yes
OS Select+Build Filterable: Yes
Data Schema Version: 3.0, 4.0
This attribute was called mainbuilding_updatedate in data schema versions 1.0 and 2.0, and was renamed mainbuildingid_updatedate from version 3.0 onward.
Date when the main building was updated.
Data Types: String (GeoJSON), Date (GPKG), Date (CSV)
Nullable: false
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 1.0, 2.0, 3.0, 4.0
Describes what the Building is used for and can have up to two values. The value will be 'Mixed Use' where more than two uses are identified.
Data Types: String (GeoJSON), String (GPKG), String (CSV)
Nullable: false
Code List Name: buildingusevalue
Max Length: 100
Multiplicity: [1..2]
OS NGD API – Features Filterable: Yes
OS Select+Build Filterable: Yes
Data Schema Version: 1.0, 2.0, 3.0, 4.0
This attribute was called oslandusetiera in data schema versions 1.0 and 2.0, and was renamed buildinguse_oslandusetiera from version 3.0 onward.
A high-level description of the main activity that takes place at the location or that the feature supports.
Data Types: String (GeoJSON), String (GPKG), String (CSV)
Nullable: true
Code List Name: landusetieravalue
Max Length: 50
OS NGD API – Features Filterable: Yes
OS Select+Build Filterable: Yes
Data Schema Version: 1.0, 2.0, 3.0, 4.0
This attribute was called addresscount_total in data schema versions 1.0 and 2.0, and was renamed buildinguse_addresscount_total from version 3.0 onward.
Total count of built in-use address UPRNs associated with the building.
Data Types: Integer (GeoJSON), Integer (GPKG), Integer (CSV)
Nullable: false
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 1.0, 2.0, 3.0, 4.0
This attribute was called addresscount_residential in data schema versions 1.0 and 2.0, and was renamed buildinguse_addresscount_residential from version 3.0 onward.
Count of residential built in-use address UPRNs associated with the building.
Data Types: Integer (GeoJSON), Integer (GPKG), Integer (CSV)
Nullable: false
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 1.0, 2.0, 3.0, 4.0
This attribute was called addresscount_commercial in data schema versions 1.0 and 2.0, and was renamed buildinguse_addresscount_commercial from version 3.0 onward.
Count of commercial built in-use address UPRNs associated with the building.
Data Types: Integer (GeoJSON), Integer (GPKG), Integer (CSV)
Nullable: false
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 1.0, 2.0, 3.0, 4.0
This attribute was called addresscount_other in data schema versions 1.0 and 2.0, and was renamed buildinguse_addresscount_other from version 3.0 onward.
Count of other (not residential or commercial) built in-use address UPRNs associated with the building.
Data Types: Integer (GeoJSON), Integer (GPKG), Integer (CSV)
Nullable: false
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 1.0, 2.0, 3.0, 4.0
Date when the building use was updated.
Data Types: String (GeoJSON), Date (GPKG), Date (CSV)
Nullable: false
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 1.0, 2.0, 3.0, 4.0
Describes how the building is connected to other buildings.
Data Types: String (GeoJSON), String (GPKG), String (CSV)
Nullable: false
Code List Name: buildingconnectivitytypevalue
Max Length: 15
OS NGD API – Features Filterable: Yes
OS Select+Build Filterable: Yes
Data Schema Version: 1.0, 2.0, 3.0, 4.0
This attribute was called connectivitycount in data schema versions 1.0 and 2.0, and was renamed connectivity_count from version 3.0 onward.
Count of connected buildings.
Data Types: Integer (GeoJSON), Integer (GPKG), Integer (CSV)
Nullable: false
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 1.0, 2.0, 3.0, 4.0
Date when the building connectivity was updated.
Data Types: String (GeoJSON), Date (GPKG), Date (CSV)
Nullable: false
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 1.0, 2.0, 3.0, 4.0
The primary material from which the building is constructed. Construction material is recorded for addressable buildings. It may be recorded for some non-addressable buildings, but the majority of these will have construction material recorded as NULL.
Data Types: String (GeoJSON), String (GPKG), String (CSV)
Nullable: true
Code List Name: constructionmaterialvalue
Max Length: 40
OS NGD API – Features Filterable: Yes
OS Select+Build Filterable: Yes
Data Schema Version: 2.0, 3.0, 4.0
The date on which the latest evidence was gathered to make an update if required. For example, the date of collection by a surveyor or third party information received.
Data Types: String (GeoJSON), Date (GPKG), Date (CSV)
Nullable: true
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 2.0, 3.0, 4.0
Date when the construction material was last updated.
Data Types: String (GeoJSON), Date (GPKG), Date (CSV)
Nullable: true
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 2.0, 3.0, 4.0
Indicates the data source of the construction material.
Data Types: String (GeoJSON), String (GPKG), String (CSV)
Nullable: true
Code List Name: constructionmaterialsourcevalue
Max Length: 85
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 2.0, 3.0, 4.0
The capture method describes how the construction material was created, for example, via remote survey or via an automated process.
Data Types: String (GeoJSON), String (GPKG), String (CSV)
Nullable: true
Code List Name: capturemethodvalue
Max Length: 25
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 2.0, 3.0, 4.0
The provenance of the construction material provided by the third party data provider, for example, the name of an organisation and the specific dataset provided by that organisation.
Data Types: String (GeoJSON), String (GPKG), String (CSV)
Nullable: true
Max Length: 65
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 2.0, 3.0, 4.0
The period (i.e. a range of years) in which the building was constructed. Construction period is recorded for addressable buildings. It may be recorded for some non-addressable buildings, but the majority of these will have construction period recorded as NULL.
Data Types: String (GeoJSON), String (GPKG), String (CSV)
Nullable: true
Code List Name: buildingageperiodvalue
Max Length: 10
OS NGD API – Features Filterable: Yes
OS Select+Build Filterable: Yes
Data Schema Version: 2.0, 3.0, 4.0
The year in which the building was constructed, for buildings constructed post-1999 and where available.
Data Types: Integer (GeoJSON), Integer (GPKG), Integer (CSV)
Nullable: true
OS NGD API – Features Filterable: Yes
OS Select+Build Filterable: Yes
Data Schema Version: 2.0, 3.0, 4.0
The date on which the latest evidence was gathered to make an update if required. For example, the date of collection by a surveyor or third party information received.
Data Types: String (GeoJSON), Date (GPKG), Date (CSV)
Nullable: true
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 2.0, 3.0, 4.0
Date when the building age was last updated.
Data Types: String (GeoJSON), Date (GPKG), Date (CSV)
Nullable: true
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 2.0, 3.0, 4.0
Indicates the data source of the building age.
Data Types: String (GeoJSON), String (GPKG), String (CSV)
Nullable: true
Code List Name: buildingagesourcevalue
Max Length: 85
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 2.0, 3.0, 4.0
The capture method describes how the building age was created, for example, via remote survey or via an automated process.
Data Types: String (GeoJSON), String (GPKG), String (CSV)
Nullable: true
Code List Name: capturemethodvalue
Max Length: 25
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 2.0, 3.0, 4.0
The provenance of the building age provided by the third party data provider, for example, the name of an organisation and the specific dataset provided by that organisation.
Data Types: String (GeoJSON), String (GPKG), String (CSV)
Nullable: true
Max Length: 65
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 2.0, 3.0, 4.0
Indicates if a basement is present in the building. Basement presence is recorded for addressable buildings. It may be recorded for some non-addressable buildings, but the majority of these will have basement presence recorded as NULL.
Data Types: String (GeoJSON), String (GPKG), String (CSV)
Nullable: true
Code List Name: presencevalue
Max Length: 15
OS NGD API – Features Filterable: Yes
OS Select+Build Filterable: Yes
Data Schema Version: 2.0, 3.0, 4.0
Indicates if the basement contains a self-contained flat.
Data Types: String (GeoJSON), String (GPKG), String (CSV)
Nullable: true
Code List Name: presencevalue
Max Length: 15
OS NGD API – Features Filterable: Yes
OS Select+Build Filterable: Yes
Data Schema Version: 2.0, 3.0, 4.0
The date on which the latest evidence was gathered to make an update if required. For example, the date of collection by a surveyor or third party information received.
Data Types: String (GeoJSON), Date (GPKG), Date (CSV)
Nullable: true
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 2.0, 3.0, 4.0
Date when the basement presence was last updated.
Data Types: String (GeoJSON), Date (GPKG), Date (CSV)
Nullable: true
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 2.0, 3.0, 4.0
Indicates the data source of the basement presence.
Data Types: String (GeoJSON), String (GPKG), String (CSV)
Nullable: true
Code List Name: basementpresencesourcevalue
Max Length: 85
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 2.0, 3.0, 4.0
The capture method describes how the basement presence was created, for example, via remote survey or via an automated process.
Data Types: String (GeoJSON), String (GPKG), String (CSV)
Nullable: true
Code List Name: capturemethodvalue
Max Length: 25
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 2.0, 3.0, 4.0
The provenance of the basement presence provided by the third party data provider, for example, the name of an organisation and the specific dataset provided by that organisation.
Data Types: String (GeoJSON), String (GPKG), String (CSV)
Nullable: true
Max Length: 65
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 2.0, 3.0, 4.0
The maximum number of occupiable floors at or above ground level within a building.
Data Types: Integer (GeoJSON), Integer (GPKG), Integer (CSV)
Nullable: true
OS NGD API – Features Filterable: Yes
OS Select+Build Filterable: Yes
Data Schema Version: 3.0, 4.0
The date on which the latest evidence was gathered to make an update if required. For example, the date of collection by a surveyor or third party information received.
Data Types: String (GeoJSON), Date (GPKG), Date (CSV)
Nullable: true
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 3.0, 4.0
Date when the number of floors was last updated.
Data Types: String (GeoJSON), Date (GPKG), Date (CSV)
Nullable: true
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 3.0, 4.0
Indicates the data source of the number of floors. For buildings with a populated number of floors value, this can be either 'Ordnance Survey' or 'Energy Performance Certificate Authority'.
Data Types: String (GeoJSON), String (GPKG), String (CSV)
Nullable: true
Max Length: 40
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 3.0, 4.0
The capture method describes how the number of floors was created, for example, via remote sensing survey or via an automated process.
Data Types: String (GeoJSON), String (GPKG), String (CSV)
Nullable: true
Code List Name: capturemethodvalue
Max Length: 25
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 3.0, 4.0
The height, above datum, of the underlying ground surface.
Data Types: Number (GeoJSON), Float (GPKG), Real (CSV)
Nullable: true
Precision: 5
Scale: 1
OS NGD API – Features Filterable: Yes
OS Select+Build Filterable: Yes
Data Schema Version: 4.0
The height, above datum, of the base of the roof, that is, where the roof intersects the building walls.
Data Types: Number (GeoJSON), Float (GPKG), Real (CSV)
Nullable: true
Precision: 5
Scale: 1
OS NGD API – Features Filterable: Yes
OS Select+Build Filterable: Yes
Data Schema Version: 4.0
The height, above datum, of the highest point of the building; this could include a chimney or other structure on a building.
Data Types: Number (GeoJSON), Float (GPKG), Real (CSV)
Nullable: true
Precision: 5
Scale: 1
OS NGD API – Features Filterable: Yes
OS Select+Build Filterable: Yes
Data Schema Version: 4.0
The difference in height between the intersection of the external building walls and the underlying ground surface and the base of the roof of the building.
Data Types: Number (GeoJSON), Float (GPKG), Real (CSV)
Nullable: true
Precision: 4
Scale: 1
OS NGD API – Features Filterable: Yes
OS Select+Build Filterable: Yes
Data Schema Version: 4.0
The difference in height between the intersection of the external building walls and the underlying ground surface and the highest point on the building.
Data Types: Number (GeoJSON), Float (GPKG), Real (CSV)
Nullable: true
Precision: 4
Scale: 1
OS NGD API – Features Filterable: Yes
OS Select+Build Filterable: Yes
Data Schema Version: 4.0
The confidence in the quality of the height attributes for the building expressed in qualitative terms.
Data Types: String (GeoJSON), String (GPKG), String (CSV)
Nullable: true
Code List Name: builtstructureheightconfidencevalue
Max Length: 15
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 4.0
The date on which the latest evidence was gathered to make an update if required. For example, the date the imagery was captured that has been used to derive the height information.
Data Types: String (GeoJSON), Date (GPKG), Date (CSV)
Nullable: true
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 4.0
Date when the height was last updated.
Data Types: String (GeoJSON), Date (GPKG), Date (CSV)
Nullable: true
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 4.0
The primary roof material present on the building.
Data Types: String (GeoJSON), String (GPKG), String (CSV)
Nullable: true
Code List Name: roofmaterialvalue
Max Length: 30
OS NGD API – Features Filterable: Yes
OS Select+Build Filterable: Yes
Data Schema Version: 4.0
Indicates if solar panels are present on the roof of the building.
Data Types: String (GeoJSON), String (GPKG), String (CSV)
Nullable: true
Code List Name: presencevalue
Max Length: 15
OS NGD API – Features Filterable: Yes
OS Select+Build Filterable: Yes
Data Schema Version: 4.0
Indicates if the roof of the building is at least partially covered with vegetation. This is usually specifically installed on a growing medium with a waterproof membrane, for environmental reasons.
Data Types: String (GeoJSON), String (GPKG), String (CSV)
Nullable: true
Code List Name: presencevalue
Max Length: 15
OS NGD API – Features Filterable: Yes
OS Select+Build Filterable: Yes
Data Schema Version: 4.0
An indication of whether the roof material output was expected, or if not, the reason why the quality may be lower.
Data Types: String (GeoJSON), String (GPKG), String (CSV)
Nullable: true
Code List Name: roofconfidenceindicatorvalue
Max Length: 50
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 4.0
The date on which the latest evidence was gathered to make an update if required. For example, the date the imagery was captured that has been used to derive the roof material information.
Data Types: String (GeoJSON), Date (GPKG), Date (CSV)
Nullable: true
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 4.0
Date when the roof material was last updated.
Data Types: String (GeoJSON), Date (GPKG), Date (CSV)
Nullable: true
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 4.0
The capture method describes how the roof material attributes were created, for example, via remote sensing survey or via an automated process.
Data Types: String (GeoJSON), String (GPKG), String (CSV)
Nullable: true
Code List Name: capturemethodvalue
Max Length: 25
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 4.0
An indication of the general shape characteristic of the roof of the building.
Data Types: String (GeoJSON), String (GPKG), String (CSV)
Nullable: true
Code List Name: roofshapevalue
Max Length: 10
OS NGD API – Features Filterable: Yes
OS Select+Build Filterable: Yes
Data Schema Version: 4.0
The sum of all roof face areas that have a pitch value of > 15°. Note that this measured area value is geometric (3D) rather than the planimetric (2D) measured area represented by geometry_area_m2.
Data Types: Number (GeoJSON), Float (GPKG), Real (CSV)
Nullable: true
Precision: 7
Scale: 1
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 4.0
The sum of all roof face areas that have a pitch value of <= 15°. Note that this measured area value is geometric (3D) rather than the planimetric (2D) measured area represented by geometry_area_m2.
Data Types: Number (GeoJSON), Float (GPKG), Real (CSV)
Nullable: true
Precision: 7
Scale: 1
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 4.0
The sum of all roof face areas with an aspect >= 337.5° and < 360° or >= 0 and < 22.5°. Note that this measured area value is geometric (3D) rather than the planimetric (2D) measured area represented by geometry_area_m2.
Data Types: Number (GeoJSON), Float (GPKG), Real (CSV)
Nullable: true
Precision: 7
Scale: 1
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 4.0
The sum of all roof face areas with an aspect >= 22.5° and < 67.5°. Note that this measured area value is geometric (3D) rather than the planimetric (2D) measured area represented by geometry_area_m2.
Data Types: Number (GeoJSON), Float (GPKG), Real (CSV)
Nullable: true
Precision: 7
Scale: 1
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 4.0
The sum of all roof face areas with an aspect >= 67.5° and < 112.5°. Note that this measured area value is geometric (3D) rather than the planimetric (2D) measured area represented by geometry_area_m2.
Data Types: Number (GeoJSON), Float (GPKG), Real (CSV)
Nullable: true
Precision: 7
Scale: 1
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 4.0
The sum of all roof face areas with an aspect >= 112.5° and < 157.5°. Note that this measured area value is geometric (3D) rather than the planimetric (2D) measured area represented by geometry_area_m2.
Data Types: Number (GeoJSON), Float (GPKG), Real (CSV)
Nullable: true
Precision: 7
Scale: 1
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 4.0
The sum of all roof face areas with an aspect >= 157.5° and < 202.5°. Note that this measured area value is geometric (3D) rather than the planimetric (2D) measured area represented by geometry_area_m2.
Data Types: Number (GeoJSON), Float (GPKG), Real (CSV)
Nullable: true
Precision: 7
Scale: 1
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 4.0
The sum of all roof face areas with an aspect >= 202.5° and < 247.5°. Note that this measured area value is geometric (3D) rather than the planimetric (2D) measured area represented by geometry_area_m2.
Data Types: Number (GeoJSON), Float (GPKG), Real (CSV)
Nullable: true
Precision: 7
Scale: 1
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 4.0
The sum of all roof face areas with an aspect >= 247.5° and < 292.5°. Note that this measured area value is geometric (3D) rather than the planimetric (2D) measured area represented by geometry_area_m2.
Data Types: Number (GeoJSON), Float (GPKG), Real (CSV)
Nullable: true
Precision: 7
Scale: 1
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 4.0
The sum of all roof face areas with an aspect >= 292.5° and < 337.5°. Note that this measured area value is geometric (3D) rather than the planimetric (2D) measured area represented by geometry_area_m2.
Data Types: Number (GeoJSON), Float (GPKG), Real (CSV)
Nullable: true
Precision: 7
Scale: 1
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 4.0
The sum of all roof face areas that have an indeterminable aspect. For example, areas obscured by vegetation or shadow, such as in an urban 'canyon'. Note that this measured area value is planimetric (2D) rather than geometric (3D), and is different to the other roofshapeaspect_area values.
Data Types: Number (GeoJSON), Float (GPKG), Real (CSV)
Nullable: true
Precision: 7
Scale: 1
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 4.0
The sum of all roof face areas, excluding those with indeterminable aspects. Note that this measure area value is a combination of geometric (3D) and planimetric (2D) area values because it is comprised of all known and unknown areas. Where the roofshapeaspect_areaindeterminable_m2 value is equal to 0, this value will be entirely a geometric (3D) area value.
Data Types: Number (GeoJSON), Float (GPKG), Real (CSV)
Nullable: true
Precision: 7
Scale: 1
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 4.0
An indication of whether the roof shape and aspect output was expected, or if not, the reason why the quality may be lower.
Data Types: String (GeoJSON), String (GPKG), String (CSV)
Nullable: true
Code List Name: roofconfidenceindicatorvalue
Max Length: 50
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 4.0
The date on which the latest evidence was gathered to make an update if required. For example, the date the imagery was captured that has been used to derive the roof shape aspect information.
Data Types: String (GeoJSON), Date (GPKG), Date (CSV)
Nullable: true
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 4.0
Date when the roof shape aspect was last updated.
Data Types: String (GeoJSON), Date (GPKG), Date (CSV)
Nullable: true
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 4.0
The capture method describes how the roof shape and aspect attributes were created, for example, via remote sensing survey or via an automated process.
Data Types: String (GeoJSON), String (GPKG), String (CSV)
Nullable: true
Code List Name: capturemethodvalue
Max Length: 25
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 4.0
A cross reference table mapping Building to Site. The following sub-sections provide details about the attributes included in this cross reference table, their data types in the different output formats, and other important metadata about them.
The identifier of the site the Building is within.
Data Types: String (GeoJSON), String (GPKG), String (CSV)
Nullable: false
Max Length: 36
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 1.0, 2.0, 3.0, 4.0
The identifier of the Building.
Data Types: String (GeoJSON), String (GPKG), String (CSV)
Nullable: false
Max Length: 36
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 1.0, 2.0, 3.0, 4.0
The date this version of the feature entered the OS National Geographic Database.
Data Types: String (GeoJSON), Date (GPKG), Date (CSV)
Nullable: false
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 1.0, 2.0, 3.0, 4.0
A cross reference table mapping Building to Building Part. The following sub-sections provide details about the attributes included in this cross reference table, their data types in the different output formats, and other important metadata about them.
The identifier of the Building Part the Building is created from.
Data Types: String (GeoJSON), String (GPKG), String (CSV)
Nullable: false
Max Length: 36
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 1.0, 2.0, 3.0, 4.0
The identifier of the Building.
Data Types: String (GeoJSON), String (GPKG), String (CSV)
Nullable: false
Max Length: 36
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 1.0, 2.0, 3.0, 4.0
The date this version of the feature entered the OS National Geographic Database.
Data Types: String (GeoJSON), Date (GPKG), Date (CSV)
Nullable: false
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 1.0, 2.0, 3.0, 4.0
A cross reference table mapping Address to Building. The following sub-sections provide details about the attributes included in this cross reference table, their data types in the different output formats, and other important metadata about them.
The identifier of the addressable feature that is located within the Building.
Data Types: Number (GeoJSON), Integer (GPKG), Integer (CSV)
Nullable: false
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 1.0, 2.0, 3.0, 4.0
The identifier of the Building.
Data Types: String (GeoJSON), String (GPKG), String (CSV)
Nullable: false
Max Length: 36
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 1.0, 2.0, 3.0, 4.0
The date this version of the feature entered the OS National Geographic Database.
Data Types: String (GeoJSON), Date (GPKG), Date (CSV)
Nullable: false
OS NGD API – Features Filterable: No
OS Select+Build Filterable: No
Data Schema Version: 1.0, 2.0, 3.0, 4.0
Loading OS NGD CSV files into databases
Comma-separated values (CSV) file format is universally supported for easy ingestion into all major database products. Before loading OS NGD data contained in CSV files into a database, it is necessary to create relevant tables. Data definition language (DDL) statements for PostgreSQL, SQL Server and Oracle can be accessed in our OS NGD Resources GitHub repository.
For instructions on loading CSV files, see the Getting Started with CSV guide.