A BLPU is defined as a real-world object that is an ‘area of land, property or structure of fixed location having uniform occupation, ownership or function’. It is a real-world object that is of interest and within scope of the CLASS_SCHEME.

Feature type attributes

The following page provides details about the attributes included with this feature, their data types in the different output formats, and other important metadata about them.

fid

A non-persistent integer which is autogenerated and is required within the OGC GPKG format.

• Attribute Name: Not provided (GML), Not provided (CSV), fid (GKPG)

• Data Type: Integer

• Multiplicity: [1]

Record identifier

Identifies this record as a BLPU Record (type 21).

• Attribute Name: Not provided (GML), RECORD_IDENTIFIER (CSV), Not provided (GKPG)

• Data Type: Integer (CSV)

• Size: 2

• Multiplicity: [1]

Change type

Type of record change – please see COU supply for more information.

• Attribute Name: Provided in FeatureWithLifeCycle (GML), CHANGE_TYPE (CSV), change_type (GKPG)

• Code List Name: ChangeTypeCode

• Size: 1

• Multiplicity: [1]

Pro order

The order in which the records were processed in to create the data supply.

• Attribute Name: Not provided (GML), PRO_ORDER (CSV), Not provided (GKPG)

• Data Type: Integer

• Size: 16

• Multiplicity: [1]

UPRN

The order in which the records were processed in to create the data supply.

• Attribute Name: uprn (GML), UPRN (CSV), uprn (GKPG)

• Data Type: Integer

• Size: 12

• Multiplicity: [1]

Logical status

Logical status of this address record as given by the local custodian. This attribute shows whether the address is currently live, provisional or historic.

• Attribute Name: logicalStatus (GML), LOGICAL_STATUS (CSV), logical_status (GKPG)

• Code List Name: LogicalStatusCode

• Size: 1

• Multiplicity: [1]

BLPU state

A code identifying the current state of the BLPU.

• Attribute Name: blpuState (GML), BLPU_STATE (CSV), blpu_state (GKPG)

• Code List Name: BlpuStateCode

• Size: 1

• Multiplicity: [0..1]

BLPU state date

Date at which the BLPU achieved its current state as defined in the BLPU State field.

• Attribute Name: blpuStateDate (GML), BLPU_STATE_DATE (CSV), blpu_state_date (GKPG)

• Condition: BLPU State Date must be present if BLPU State is present.

• Data Type: Date

• Size: 1

• Multiplicity: [0..1]

Parent UPRN

UPRN of the parent Record if a parent child relationship exists.

• Attribute Name: parentUPRN (GML), PARENT_UPRN (CSV), parent_uprn (GKPG)

• Data Type: Integer

• Size: 12

• Multiplicity: [0..1]

Position

A value in metres defining the x and y location in accordance with the British National Grid.

• Attribute Name: position (GML) <<VOIDABLE>>, X_COORDINATE, Y_COORDINATE (CSV), x_coordinate, y_coordinate (GKPG)

• Condition: Must be populated if COUNTRY = ‘M’

• Data Type: GM_POINT (GML), Float (CSV), Double (GPKG)

• Size: X_COORDINATE (precision, scale) – (8, 2), Y_COORDINATE (precision, scale) – (9, 2)

• Multiplicity: [1] (GML), [0..1] (CSV), [0..1] (GPKG)

Position lat long

A value defining the Latitude and Longitude location in accordance with the ETRS89 coordinate reference system.

• Attribute Name: positionLatLong (GML), LATITUDE, LONGITUDE (CSV), latitude, longitude (GKPG)

• Data Type: GM_POINT (GML), Float (CSV), Double (GPKG)

• Size: LATITUDE (precision, scale) – (9, 7), LONGITUDE (precision, scale) – (8, 7)

• Multiplicity: [1]

RPC

Representative Point Code (RPC). This code is used to reflect the positional accuracy of the address location.

• Attribute Name: rpc (GML), RPC (CSV), rpc (GKPG)

• Code List Name: RPCCode

• Size: 1

• Multiplicity: [1]

Local custodian code

Unique identifier of the Local Authority Custodian responsible for the maintenance of this record.

• Attribute Name: localCustodianCode (GML), LOCAL_CUSTODIAN_C ODE (CSV), local_custodian_code (GKPG)

• Data Type: Integer

• Size: 4

• Multiplicity: [1]

Country

The country in which an address record can be found within, determined by the data supply.

• Attribute Name: country (GML), COUNTRY (CSV), country (GKPG)

• Code List Name: CountryCode

• Size: 1

• Multiplicity: [1]

Start date

The date on which the address record was inserted into the database.

• Attribute Name: Provided in FeatureWithLifeCycle (GML), START_DATE (CSV), start_date (GKPG)

• Data Type: Date

• Multiplicity: [1]

End date

The date on which the address record was closed in the database.

• Attribute Name: Provided in FeatureWithLifeCycle (GML), END_DATE (CSV), end_date (GKPG)

• Data Type: Date

• Multiplicity: [0..1]

Last update date

The date on which any of the attributes on this record were last changed.

• Attribute Name: Provided in FeatureWithLifeCycle (GML), LAST_UPDATE_DATE (CSV), last_update_date (GKPG)

• Data Type: Date

• Multiplicity: [1]

Entry date

The date on which this record was inserted into the Local Authority database.

• Attribute Name: Provided in FeatureWithLifeCycle (GML), ENTRY_DATE (CSV), entry_date (GKPG)

• Data Type: Date

• Multiplicity: [1]

AddressBase postal

Identifies addresses which are believed to be capable of receiving mail as defined specifically for the AddressBase products and details their relationship with other AddressBase Postal records.

• Attribute Name: addressbasePostal (GML), ADDRESSBASE_POSTAL (CSV), addressbase_postal (GKPG)

• Code List Name: AddressbasePostalCode

• Size: 1

• Multiplicity: [1]

Postcode locator

This field contains the Royal Mail Postcode Address File (PAF) postcode where the local authority address has been matched to PAF, that is, the POSTCODE field.

Where a match has not been made, the postcode information is sourced from the local authority in collaboration with Royal Mail. Where the local authority does not hold a current valid postcode Code-Point is used in the areas where this is possible, if not, spatial methods are used to allocate a Postcode value.

• Attribute Name: postcodeLocator (GML), POSTCODE_LOCATOR (CSV), postcode_locator (GKPG)

• Data Type: CharacterString (GML), char (CSV), String (GPKG)

• Size: 8

• Multiplicity: [1]

• Source: Royal Mail, Contributing Local Authority or Ordnance Survey

Postcode locator

This is a count of all of the child UPRNs for this record where a parent-child relationship exists.

• Attribute Name: multiOccCount (GML), MULTI_OCC_COUNT (CSV), multi_occ_count (GKPG)

• Data Type: Integer

• Size: 4

• Multiplicity: [1]

Multi occ count

This is a count of all of the child UPRNs for this record where a parent-child relationship exists.

• Attribute Name: multiOccCount (GML), MULTI_OCC_COUNT (CSV), multi_occ_count (GKPG)

• Data Type: Integer

• Size: 4

• Multiplicity: [1]

This feature holds the lifecycle information about the whole feature.

Feature type attributes

The following page provides details about the attributes included with this feature, their data types in the different output formats, and other important metadata about them.

Change time

Type of record change – please see COU supply for more information.

• Attribute Name: changeType (GML), Not provided (CSV), Not provided (GKPG)

• Code List Name: ChangeTypeCode

• Multiplicity: [1]

Start date

Date on which the record was first loaded into the database.

• Attribute Name: startDate (GML), Not provided (CSV), Not provided (GKPG)

• Data Type: Date

• Multiplicity: [1]

End date

The date on which the record ceased to exist in the product database.

• Attribute Name: endDate (GML), Not provided (CSV), Not provided (GKPG)

• Data Type: Date

• Multiplicity: [0..1]

Last update date

The date on which any attribute on this record was last changed in the product database.

• Attribute Name: endDate (GML), Not provided (CSV), Not provided (GKPG)

• Data Type: Date

• Multiplicity: [0..1]

Entry date

The date on which the record was entered into the Local Authority database.

• Attribute Name: entryDate (GML), Not provided (CSV), Not provided (GKPG)

• Data Type: Date

• Multiplicity: [1]

This section describes the features (one for CSV and GeoPackage, and two for GML) which make up the AddressBase Premium Islands product, giving the following information about each attribute:

AddressBase Premium Islands feature type attributes

Name and Definition

The name of the attribute and what it is describing.

Condition

A condition associated with this attribute (optional).

Attribute Type

The nature of the attribute, for example a numeric value or a code list value.

Multiplicity

Describes how many times this element is expected to be populated in the data. An attribute may be optional or mandatory within the product. These are denoted by:

• ‘1’ – there must be a value.

• ‘0..1’ – population is optional but a maximum of one attribute will be returned These values may be used in combination.

AddressBase Premium Islands feature types

• Street – (Type 11 Record)

• BLPU – (Type 21 Record)

• AddressBase supply set

• Feature with lifecycle

This feature is formally known as the GML feature collection and is used to define a collection of features.

Feature type attributes

The following page provides details about the attributes included with this feature, their data types in the different output formats, and other important metadata about them.

Query time

Time the data was extracted from the database.

• Attribute Name: queryTime (GML), Not provided (CSV), Not provided (GKPG)

• Data Type: DateTime

• Multiplicity: [1]

Query change since date

The date given as part of a change-only query.

• Attribute Name: queryChangeSinceDate (GML), Not provided (CSV), Not provided (GKPG)

• Data Type: Date

• Multiplicity: [0..1]

A way or thoroughfare providing a right of way on foot, by cycle or by motor vehicle, or access to more than one property. This record assigns a Unique Street Reference Number (USRN) to each street and holds the start and end coordinates of the street feature with information about surface type and classification.

Feature type attributes

The following page provides details about the attributes included with this feature, their data types in the different output formats, and other important metadata about them.

fid

A non-persistent integer which is autogenerated and is required within the OGC GPKG format.

• Attribute Name: Not provided (GML), Not provided (CSV), fid (GKPG)

• Data Type: Integer

• Multiplicity: [1]

Record identifier

Identifies this record as a Street Record (type 11).

• Attribute Name: Not provided (GML), RECORD_IDENTIFIER (CSV), Not provided (GKPG)

• Data Type: Integer (CSV)

• Size: 2

• Multiplicity: [1]

Change type

Type of record change – please see COU supply for more information.

• Attribute Name: Provided in FeatureWithLifeCycle (GML), CHANGE_TYPE (CSV), change_type (GKPG)

• Code List Name: ChangeTypeCode

• Size: 1

• Multiplicity: [1]

Pro order

The order in which the records were processed in to create the data supply.

• Attribute Name: Not provided (GML), PRO_ORDER (CSV), Not provided (GKPG)

• Data Type: Integer

• Size: 16

• Multiplicity: [1]

USRN

Unique Street Reference Number (USRN) - the unique key for the record and primary key for the Street table.

• Attribute Name: usrn (GML), USRN (CSV), usrn (GKPG)

• Data Type: Integer

• Size: 8

• Multiplicity: [1]

Record type

Description of the street record type, for example whether it is a named or numbered street.

• Attribute Name: recordType (GML), RECORD_TYPE (CSV), record_type (GKPG)

• Code List Name: StreetRecordTypeCode

• Size: 1

• Multiplicity: [1]

SWA org ref

The code which identifies the Street Naming and Numbering Authority or the Local Highway Authority.

• Attribute Name: swaOrgRefNaming (GML), SWA_ORG_REF_NAMING (CSV), swa_org_ref_naming (GKPG)

• Data Type: Integer

• Size: 4

• Multiplicity: [1]

State

A code identifying the current state of the Street, ‘Open’ for example.

• Attribute Name: state (GML), STATE (CSV), state (GKPG)

• Code List Name: StreetStateCode

• Size: 1

• Multiplicity: [0..1]

State date

Date at which the street achieved its current state as referenced in the ‘State’ column.

• Attribute Name: stateDate (GML), STATE_DATE (CSV), state_date (GKPG)

• Condition: If State Date is present, State must also be present.

• Data Type: Date

• Multiplicity: [0..1]

Street surface

A code to indicate the surface finish of the street.

• Attribute Name: streetSurface (GML), STREET_SURFACE (CSV), street_surface (GKPG)

• Code List Name: StreetSurfaceCode

• Size: 1

• Multiplicity: [0..1]

Street classification

A code for the primary street classification, for example denoting it to be ‘open to all vehicles’.

• Attribute Name: streetClassification (GML), STREET_CLASSIFICATION (CSV), street_classification (GKPG)

• Code List Name: StreetClassificationCode

• Size: 2

• Multiplicity: [0..1]

Version

Version number of the street record.

• Attribute Name: version (GML), VERSION (CSV), version (GKPG)

• Data Type: Integer

• Size: 3

• Multiplicity: [1]

Street start date

Date this record or version was inserted into the database.

• Attribute Name: Provided in FeatureWithLifeCycle (GML), STREET_START_DATE (CSV), street_start_date (GKPG)

• Data Type: Date

• Multiplicity: [1]

Street end date

Date on which the street was closed in the product database. This can occur due to the street being permanently closed in the real world.

• Attribute Name: Provided in FeatureWithLifeCycle (GML), STREET_END_DATE (CSV), street_end_date (GKPG)

• Condition: If State is equal to 4, Street End Date must be populated.

• Data Type: Date

• Multiplicity: [0..1]

Last update date

The date on which any attribute of the Record was last changed.

• Attribute Name: Provided in FeatureWithLifeCycle (GML), LAST_UPDATE_DATE (CSV), last_update_date (GKPG)

• Data Type: Date

• Multiplicity: [1]

Record entry date

The date that the record was entered into the Local Authority database.

• Attribute Name: Provided in FeatureWithLifeCycle (GML), RECORD_ENTRY_DATE (CSV), record_entry_date (GKPG)

• Data Type: Date

• Multiplicity: [1]

Street start

A value in metres defining the x and y location in accordance with the British National Grid for the start point of the street.

• Attribute Name: streetStart (GML) <<VOIDABLE>>, STREET_START_X, STREET_START_Y (CSV), street_start_x, street_start_y (GKPG)

• Condition: Must be populated if COUNTRY = ‘M’

• Data Type: GM_POINT (GML), Float (CSV), Double (GPKG)

• Size: STREET_START_X (precision, scale) – (8, 2), STREET_START_Y (precision, scale) – (9, 2)

• Multiplicity: [1] (GML), [0..1] (CSV), [0..1] (GPKG)

Street start lat long

A value defining the Latitude and Longitude start point of the street in accordance with the ETRS89 coordinate reference system.

• Attribute Name: streetStartLatLong (GML), STREET_START_LAT, STREET_START_LONG (CSV), street_start_lat, street_start_long (GKPG)

• Data Type: GM_POINT (GML), Float (CSV), Double (GPKG)

• Size: LATITUDE (precision, scale) – (9, 7), LONGITUDE (precision, scale) – (8, 7)

• Multiplicity: [1]

Street end

A value in metres defining the x and y location in accordance with the British National Grid for the end point of the street.

• Attribute Name: streetEnd (GML) <<VOIDABLE>>, STREET_END_X, STREET_END_Y (CSV), street_start_lat, street_end_x, street_end_y (GKPG)

• Condition: Must be populated if COUNTRY = ‘M’

• Data Type: GM_POINT (GML), Float (CSV), Double (GPKG)

• Size: STREET_END_X (precision, scale) – (8, 2), STREET_END_Y (precision, scale) – (9, 2)

• Multiplicity: [1] (GML), [0..1] (CSV), [0..1] (GPKG)

Street end lat long

A value defining the Latitude and Longitude end point of the street in accordance with the ETRS89 coordinate reference system.

• Attribute Name: streetEndLatLong (GML), STREET_END_LAT, STREET_END_LONG (CSV), street_end_lat, street_end_long (GKPG)

• Data Type: GM_POINT (GML), Float (CSV), Double (GPKG)

• Size: LATITUDE (precision, scale) – (9, 7), LONGITUDE (precision, scale) – (8, 7)

• Multiplicity: [1]

Street tolerance

The accuracy of data capture (in metres) to which the Street Start and End coordinates have been captured.

• Attribute Name: streetTolerance (GML), STREET_TOLERANCE (CSV), street_tolerance (GKPG)

• Data Type: Integer

• Size: 3

• Multiplicity: [1]