An addressing gazetteer offering full lifecycle information of a property for Northern Ireland, Isle of Man and the Channel Islands.

AddressBase Plus Islands contains current properties including addresses sourced from local authorities, Ordnance Survey and Royal Mail, all provided with an UPRN (Unique Property Reference Number), for Northern Ireland, Channel Islands and the Isle of Man.

The product enables the end-user to locate an address or property on a map using either X, Y coordinates supplied on a British National Grid or Latitude and Longitude coordinates provided on an ETRS89 projection.

How to get this product

Access to this product is free for PSGA members. Find out if you are a PSGA member or try out a sample of AddressBase Plus Islands data by accessing the product page here with links to all of the relevant resources. Alternatively, you can try out the full product by applying for a Data Exploration license.

Record Counts

Changed Records

If you receive a Change-Only Update (COU) supply for your AddressBase Islands product, you will receive Insert, Update and Delete records within the supplied file. The following tables detail the count of these records.

AddressBase Plus Islands

AddressBase Premium Islands

Source Data Currency

The following information relates to the currency of the source data used in the creation of Epoch 112:

Data Issues

AddressBase Plus Islands Issues

There are no reported issues in this release of AddressBase Plus Islands.

AddressBase Premium Islands issues

Affected output formats: CSV and GML

• Street incorrect coordinates – There are two Streets which have incorrect start or end coordinates of 000000. The unique identifiers can be provided upon request through your OS Relationship Manager.

Next Release

The next release of AddressBase Islands products, Epoch 113, is scheduled for 26th September 2024.

This technical specification includes the following sections:

• Data formats

• Supply and update

• AddressBase Plus Islands structure

• Feature types

• Code lists and enumerations

• CSV to GML mapping

• Example records

AddressBase Plus Islands will be supplied as non-geographic chunks only. This is a way of dividing up the data into chunks that are supplied in separate volumes, which have a fixed maximum amount of records. The supply is not supplied with any reference to the geographic position of records.

Customers are able to take the AddressBase Plus Islands product as a Full Supply or Change Only Update (COU) supply.

Unzipped files

The filename will be constructed as follows:

productName_supply_ccyy-mm-dd_vvv.format

Where:

• ProductName is AddressBasePlus_ISL.

• supply is defined as FULL or COU.

• ccyy-mm-dd is the date the file was generated.

• vvv is the volume number of the file.

• format is the format of the files received, for example, csv or gml.

For example:

• AddressBasePlus_ISL_FULL_2013-05-28_001.gml (GML full supply)

• AddressBasePlus_ISL_COU_2013-05-28_001.csv (CSV COU supply)

Zipped files

If the data has been provided in a ZIP file, the filename will be constructed as follows:

productName_supply_ccyy-mm-dd_vvv_format.zip

For example:

• AddressBasePlus_ISL_FULL_2013-05-28_001_gml.zip (GML full supply zipped)

COU supply

AddressBase Plus Islands is available as a Full or Change Only Update supply.

A change-only update (COU) supply of data contains records or files that have changed between product refresh cycles. The primary benefit in supplying data in this way is that data volumes are smaller therefore reducing the amount of data that requires processing when compared to a full supply.

COU data enables a user to identify three types of change:

1. Deletes (CHANGE_TYPE ‘D’) are objects that have ceased to exist in your area of interest since the last product refresh.

2. Inserts (CHANGE_TYPE ‘I’) are objects that have been newly inserted into your area of interest since the last product refresh.

3. Updates (CHANGE_TYPE ‘U’) are objects that have been updated in your area of interest since the last product refresh.

Archiving

When users are Deleting, Inserting or Updating features it is up to the user to consider their archiving requirements. If deleted records are important to your business requirements you must take appropriate action to archive previous records.

This page describes the features (one for CSV and two for GML) which make up the AddressBase Plus product, giving detailed information about each attribute.

AddressBase Plus Islands attribute information

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 AddressBase Plus 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 Plus Islands feature types

The address of a property or object which is defined as the main/preferred address by the Local Land and Property Gazetteer (LLPG) custodian, Ordnance Survey or Royal Mail.

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.

The following sub-sections provide details about the attributes included with the Address feature type.

UPRN

Unique Property Reference Number (UPRN) assigned by the LLPG Custodian or Ordnance Survey.

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

• Data Type: Integer

• Size: 12

• Multiplicity: [1]

• Source: Contributing Local Authority / Ordnance Survey

UDPRN

Royal Mail’s Unique Delivery Point Reference Number (UDPRN).

• Attribute Name: udprn (GML), UDPRN (CSV)

• Data Type: Integer

• Size: 8

• Multiplicity: [0..1]

• Source: Royal Mail

Change type

• Attribute Name: changeType (GML), CHANGE_TYPE (CSV)

• Size: 1

• Multiplicity: [1]

State

A code identifying the current state of the property.

• Attribute Name: changeType (GML), CHANGE_TYPE (CSV)

• Size: 1

• Multiplicity: [0..1]

• Source: Contributing Local Authority

State date

Date on which the property achieved its current state in the real world.

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

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

• Data Type: Date

• Size: 1

• Multiplicity: [0..1]

• Source: Contributing Local Authority

Class

Classification of the address record.

• Attribute Name: class (GML), CLASS (CSV)

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

• Size: 6

• Multiplicity: [1]

• Source: Contributing Local Authority

Parent UPRN

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

• Attribute Name: class (GML), CLASS (CSV)

• Data Type: Integer

• Size: 12

• Multiplicity: [0..1]

• Source: Contributing Local Authority

Position

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

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

• Condition: X_COORDINATE and Y_COORDINATE (position) must be populated if COUNTRY = ‘M’

• Data Type: GM_Point (GML), Float (CSV)

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

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

• Source: Contributing Local Authority/Ordnance Survey

Position lat long

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

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

• Data Type: GM_Point (GML), Float (CSV)

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

• Multiplicity: [1]

• Source: Ordnance Survey

RPC

Representative Point Code. This code is used to reflect positional accuracy.

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

• Size: 1

• Multiplicity: [1]

• Source: Contributing Local Authority

Local custodian code

Unique identifier of the LLPG Custodian responsible for the address record creation.

• Attribute Name: localCustodianCode (GML), LOCAL_CUSTODIAN_CODE (CSV)

• 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)

• Size: 1

• Multiplicity: [1]

LA start date

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

• Attribute Name: laStartDate (GML), LA_START_DATE (CSV)

• Data Type: Date (GML)

• Multiplicity: [1]

• Source: Contributing Local Authority

Last update date

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

• Attribute Name: lastUpdateDate (GML), LAST_UPDATE_DATE (CSV)

• Data Type: Date

• Multiplicity: [1]

Entry date

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

• Attribute Name: entryDate (GML), ENTRY_DATE (CSV)

• Data Type: Date

• Multiplicity: [1]

• Source: Contributing Local Authority.

RM organisation name

The organisation name is the business name given to a delivery point within a building or small group of buildings. For example, ABC COMMUNICATIONS.

This field could also include entries for churches, public houses and libraries.

• Attribute Name: rmOrganisationName (GML), RM_ORGANISATION_NAME (CSV)

• Condition:

  • Organisation Name or PO Box Number must be present if Building Name or Building Number are all not present.

  • RM Organisation Name must be present if Department Name is present.

• Data Type: LocalisedCharacterString (GML), char (CSV)

• Size: 60

• Multiplicity: [0..1]

• Source: Royal Mail

LA organisation

Name of current occupier as provided by the Local Authority Custodian.

• Attribute Name: laOrganisation (GML), LA_ORGANISATION (CSV)

• Data Type: LocalisedCharacterString (GML), char (CSV)

• Size: 100

• Multiplicity: [0..1]

• Source: Contributing Local Authority

Department name

For some organisations, department name is indicated because mail is received by subdivisions of the main organisation at distinct delivery points. For example, Organisation Name: ABC COMMUNICATIONS or RM Department Name: MARKETING DEPARTMENT

• Attribute Name: departmentName (GML), DEPARTMENT_NAME (CSV)

• Data Type: LocalisedCharacterString (GML), char (CSV)

• Size: 60

• Multiplicity: [0..1]

• Source: Royal Mail

Legal name

Registered legal name of the organisation.

• Attribute Name: legaltName (GML), LEGAL_NAME (CSV)

• Data Type: LocalisedCharacterString (GML), char (CSV)

• Size: 60

• Multiplicity: [0..1]

• Source: Contributing Local Authority

Sub building name

The sub-building name and/or number are identifiers for subdivisions of properties.

For example:

Sub-building Name: FLAT 3 Building Name: POPLAR COURT Thoroughfare: LONDON ROAD

• Attribute Name: subBuildingName (GML), SUB_BUILDING_NAME (CSV)

• Data Type: LocalisedCharacterString (GML), char (CSV)

• Size: 30

• Multiplicity: [0..1]

• Source: Royal Mail

Building name

The building name is a description applied to a single building or a small group of buildings, such as Highfield House. This also includes those building numbers that contain non-numeric characters, such as 44A.

Some descriptive names, when included with the rest of the address, are sufficient to identify the property uniquely and unambiguously, for example, MAGISTRATES COURT.

Sometimes the building name will be a blend of distinctive and descriptive naming, for example, RAILWAY TAVERN (PUBLIC HOUSE) or THE COURT ROYAL (HOTEL).

• Attribute Name: buildingName (GML), BUILDING_NAME (CSV)

• Condition: Building Name must be present if RM Organisation Name or Building Number or PO Box Number are all not present.

  The building number will be shown in this field when it contains a range, decimal or non-numeric character (see Building Number).

• Data Type: LocalisedCharacterString (GML), char (CSV)

• Size: 50

• Multiplicity: [0..1]

• Source: Royal Mail

Building number

The building number is a number given to a single building or a small group of buildings, thus identifying it from its neighbours, for example, 44. Building numbers that contain a range, decimals or non-numeric characters do not appear in this field but will be found in the buildingName or the sub-BuildingName fields.

• Attribute Name: buildingNumber (GML), BUILDING_NUMBER (CSV)

• Condition: Building Number must be present if Organisation Name or Building Name or PO Box Number are all not present.

• Data Type: Integer

• Size: 4

• Multiplicity: [0..1]

• Source: Royal Mail

SAO start number

The number of the secondary addressable object (SAO) or the start of the number range.

• Attribute Name: saoStartNumber (GML), SAO_START_NUMBER (CSV)

• Condition: If a SAO Start Number is present a PAO Start Number or PAO text must also be present.

• Data Type: Integer

• Size: 4

• Multiplicity: [0..1]

SAO start suffix

The suffix to the SAO_START_NUMBER.

• Attribute Name: saoStartSuffix (GML), SAO_START_SUFFIX (CSV)

• Condition: If a SAO Start Suffix is present a SAO Start Number must also be present.

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

• Size: 2

• Multiplicity: [0..1]

• Source: Contributing Local Authority

SAO end number

The end of the number range for the SAO, where the SAO_START_NUMBER contains the first number in the range.

• Attribute Name: saoEndNumber (GML), SAO_END_NUMBER (CSV)

• Condition: If SAO End Number is present, a SAO Start Number must also be present.

• Data Type: Integer

• Size: 4

• Multiplicity: [0..1]

• Source: Contributing Local Authority

SAO end suffix

The suffix to the SAO_END_NUMBER.

• Attribute Name: saoEndSuffix (GML), SAO_END_SUFFIX (CSV)

• Condition: If a SAO End Suffix is present, a SAO End Number must also be present.

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

• Size: 2

• Multiplicity: [0..1]

• Source: Contributing Local Authority

SAO text

Describes the SAO, such as ‘Maisonette’ or ‘Flat 1’.

• Attribute Name: saoText (GML), SAO_TEXT (CSV)

• Condition: If SAO Text is present, a PAO Start Number or PAO Text must also be present.

• Data Type: LocalisedCharacterString (GML), char (CSV)

• Size: 90

• Multiplicity: [0..1]

• Source: Contributing Local Authority

Alt language SAO text

Describes the SAO, such as Maisonette, in an alternative language (defined by the value in the ALT_LANGUAGE field).

• Attribute Name: altLanguageSAOText (GML), ALT_LANGUAGE_SAO_TEXT (CSV)

• Data Type: LocalisedCharacterString (GML), char (CSV)

• Size: 90

• Multiplicity: [0..1]

• Source: Contributing Local Authority

PAO start number

The number of the primary addressable object (PAO) or the start of the number range.

• Attribute Name: paoStartNumber (GML), PAO_START_NUMBER (CSV)

• Condition: PAO Start Number must be present if PAO Text is not present.

• Data Type: Integer

• Size: 4

• Multiplicity: [0..1]

• Source: Contributing Local Authority

PAO start suffix

The suffix to the PAO_START_NUMBER for example, ‘A’ or ‘B’.

• Attribute Name: paoStartSuffix (GML), PAO_START_SUFFIX (CSV)

• Condition: If a PAO Start Suffix is present, a PAO Start Number must also be present.

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

• Size: 2

• Multiplicity: [0..1]

• Source: Contributing Local Authority

PAO end number

The end of the number range for the PAO where the PAO_START_NUMBER contains the first number in the range.

• Attribute Name: paoEndNumber (GML), PAO_END_NUMBER (CSV)

• Condition: If a PAO End Number is present, a PAO Start Number must also be present.

• Data Type: Integer

• Size: 4

• Multiplicity: [0..1]

• Source: Contributing Local Authority

PAO end suffix

The suffix to the PAO end number, for example ‘A’ or ‘B’.

• Attribute Name: paoEndSuffix (GML), PAO_END_SUFFIX (CSV)

• Condition: If a PAO End Suffix is present, a PAO End Number must also be present.

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

• Size: 2

• Multiplicity: [0..1]

• Source: Contributing Local Authority

PAO text

Name describing the PAO, this is normally a building name such as ‘Harbour View’.

• Attribute Name: paoText (GML), PAO_TEXT (CSV)

• Condition: PAO Text must be present if PAO Start Number is not present.

• Data Type: LocalisedCharacterString (GML), char (CSV)

• Size: 90

• Multiplicity: [0..1]

• Source: Contributing Local Authority

Alt language PAO text

Name describing the PAO, this is normally a building name such as ‘Harbour View’, in an alternative language (defined by the value in the ALT_LANGUAGE field).

• Attribute Name: altLanguagePAOText (GML), ALT_LANGUAGE_PAO_TEXT (CSV)

• Data Type: LocalisedCharacterString (GML), char (CSV)

• Size: 90

• Multiplicity: [0..1]

• Source: Contributing Local Authority

USRN

Unique Street Reference Number (USRN).

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

• Data Type: Integer

• Size: 8

• Multiplicity: [1]

• Source: Contributing Local Authority

USRN match indicator

This field indicates how the item was matched to a Street. 1 is matched manually to the most accessible USRN and 2 is matched spatially to the nearest USRN, which may not be the nearest accessible street.

• Attribute Name: usrnMatchIndicator (GML), USRN_MATCH_INDICATOR (CSV)

• Size: 1

• Multiplicity: [1]

• Source: Contributing Local Authority/Ordnance Survey

Area name

Third level of geographic area name, for example, to record island names or property groups such as crofts.

• Attribute Name: areaName (GML), AREA_NAME (CSV)

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

• Size: 40

• Multiplicity: [0..1]

• Source: Contributing Local Authority

Level

Memorandum of the vertical position of the property.

• Attribute Name: level (GML), LEVEL (CSV)

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

• Size: 30

• Multiplicity: [0..1]

• Source: Contributing Local Authority

Official flag

Whether the local custodian deems the record to be an official depiction of the address or not.

• Attribute Name: officialFlag (GML), OFFICIAL_FLAG (CSV)

• Size: 1

• Multiplicity: [0..1]

• Source: Contributing Local Authority

OS address TOID

Unique identifier provided by Ordnance Survey.

• Attribute Name: osAddressTOID (GML), OS_ADDRESS_TOID (CSV)

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

• Size: 20

• Multiplicity: [0..1]

• Source: Ordnance Survey

OS address TOID version

The version of the OS Address TOID that the product relates to.

• Attribute Name: osAddressTOIDVersion (GML), OS_ADDRESS_TOID_VERSION (CSV)

• Condition: OS Address TOID Version must be present if OS Address TOID is present.

• Data Type: Integer

• Size: 3

• Multiplicity: [0..1]

• Source: Ordnance Survey

OS road link TOID

The OS MasterMap Highways Network road link that the addressable object refers to.

• Attribute Name: osRoadLinkTOID (GML), OS_ROADLINK_TOID (CSV)

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

• Size: 20

• Multiplicity: [0..1]

• Source: Ordnance Survey

OS road link TOID version

The version of the OS Road Link TOID the product relates to.

• Attribute Name: osAddressTOIDVersion (GML), OS_ADDRESS_TOID_VERSION (CSV)

• Condition: OS Roadlink TOID Version must be present if OS Road Link TOID is present.

• Data Type: Integer

• Size: 3

• Multiplicity: [0..1]

• Source: Ordnance Survey

OS topo TOID

The OS MasterMap Topography Layer TOID that the addressable object refers to.

• Attribute Name: osTopoTOID (GML), OS_TOPO_TOID (CSV)

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

• Size: 20

• Multiplicity: [0..1]

• Source: Ordnance Survey

OS topo TOID version

The version of the OS Topo TOID the product relates to.

• Attribute Name: osTopoTOIDVersion (GML), OS_TOPO_TOID_VERSION (CSV)

• Condition: OS Topo TOID Version must be present if OS Topo TOID is present.

• Data Type: Integer

• Size: 3

• Multiplicity: [0..1]

• Source: Ordnance Survey

VOA CT record

The unique reference to the Valuation Office Agency (VOA) council tax record which the addressable object refers to.

• Attribute Name: voaCTRecord (GML), VOA_CT_RECORD (CSV)

• Data Type: Integer

• Size: 50

• Multiplicity: [0..1]

• Source: Valuation Office Agency

VOA NDR record

The unique reference to the Valuation Office Agency (VOA) council tax record which the addressable object refers to.

• Attribute Name: voaNDRRecord (GML), VOA_NDR_RECORD (CSV)

• Data Type: Integer

• Size: 50

• Multiplicity: [0..1]

• Source: Valuation Office Agency

Street description

Name of the street the address is allocated within, as given by the local authority.

• Attribute Name: streetDescription (GML), STREET_DESCRIPTION (CSV)

• Data Type: LocalisedCharacterString (GML), char (CSV)

• Size: 100

• Multiplicity: [1]

• Source: Contributing Local Authority

Alt language street description

Name of the street as given by the local authority in an alternative language, (defined by the value in the ALT_LANGUAGE field).

• Attribute Name: altLanguageStreetDescription (GML), ALT_LANGUAGE_STREET_DESCRIPTION (CSV)

• Data Type: LocalisedCharacterString (GML), char (CSV)

• Size: 100

• Multiplicity: [0..1]

• Source: Contributing Local Authority

Dependent thoroughfare

In certain places (for example, town centres), there are named thoroughfares within other named thoroughfares (for example, parades of shops on a high street where different parades have their own identity), for example, KINGS PARADE, HIGH STREET and QUEENS PARADE, HIGH STREET.

• Attribute Name: dependentThoroughfare (GML), DEPENDENT_THOROUGHFARE (CSV)

• Data Type: LocalisedCharacterString (GML), char (CSV)

• Size: 80

• Multiplicity: [0..1]

• Source: Royal Mail

Thoroughfare

A thoroughfare in AddressBase is fundamentally a road, track or named access route on which there are Royal Mail delivery points, for example, HIGH STREET.

• Attribute Name: thoroughfare (GML), THOROUGHFARE (CSV)

• Condition: Thoroughfare must be present if dependent thoroughfare is present.

• Data Type: LocalisedCharacterString (GML), char (CSV)

• Size: 80

• Multiplicity: [0..1]

• Source: Royal Mail

Welsh dependent thoroughfare

The Welsh translation of DEPENDENT_THOROUGHFARE.

• Attribute Name: welshDependentThoroughfare (GML), WELSH_DEPENDENT_THOROUGHFARE (CSV)

• Condition: If a Welsh Dependent Thoroughfare is present, a Welsh Thoroughfare must also be present.

• Data Type: LocalisedCharacterString (GML), char (CSV)

• Size: 80

• Multiplicity: [0..1]

• Source: Royal Mail

Welsh thoroughfare

The Welsh translation of THOROUGHFARE.

• Attribute Name: welshThoroughfare (GML), WELSH_THOROUGHFARE (CSV)

• Data Type: LocalisedCharacterString (GML), char (CSV)

• Multiplicity: [0..1]

• Size: 80

• Source: Royal Mail

Double dependent locality

This is used to distinguish between similar thoroughfares or the same thoroughfare within a dependent locality. For example, Millbrook Industrial Estate and Cranford Estate in this situation: BRUNEL WAY, MILLBROOK INDUSTRIAL ESTATE, MILLBROOK, SOUTHAMPTON and BRUNEL WAY, CRANFORD ESTATE, MILLBROOK, SOUTHAMPTON.

• Attribute Name: doubleDependentLocality (GML), DOUBLE_DEPENDENT_LOCALITY (CSV)

• Condition: If a Double Dependent Locality is present, a Dependent Locality must also be present.

• Data Type: LocalisedCharacterString (GML), char (CSV)

• Size: 35

• Multiplicity: [0..1]

• Source: Royal Mail

Dependent locality

Dependent locality areas define an area within a post town. These are only necessary for postal purposes and are used to aid differentiation where there are thoroughfares of the same name in the same locality. For example, HIGH STREET in SHIRLEY and SWAYTHLING in this situation: HIGH STREET, SHIRLEY, SOUTHAMPTON and HIGH STREET, SWAYTHLING, SOUTHAMPTON.

• Attribute Name: dependentLocality (GML), DEPENDENT_LOCALITY (CSV)

• Data Type: LocalisedCharacterString (GML), char (CSV)

• Size: 35

• Multiplicity: [0..1]

• Source: Royal Mail

Locality

A locality defines an area or geographical identifier within a town, village or hamlet.

• Attribute Name: locality (GML), LOCALITY (CSV)

• Data Type: LocalisedCharacterString (GML), char (CSV)

• Size: 35

• Multiplicity: [0..1]

• Source: Contributing Local Authority

Welsh dependent locality

The Welsh translation of DEPENDENT_LOCALITY.

• Attribute Name: welshDependentLocality (GML), WELSH_DEPENDENT_LOCALITY (CSV)

• Data Type: LocalisedCharacterString (GML), char (CSV)

• Size: 35

• Multiplicity: [0..1]

• Source: Royal Mail

Welsh double dependent locality

The Welsh translation of Double Dependent Locality.

• Attribute Name: welshDoubleDependentLocality (GML), WELSH_DOUBLE_DEPENDENT_LOCALITY (CSV)

• Condition: If a Welsh Double Dependent Locality is present, a Welsh Dependent Locality must also be present.

• Data Type: LocalisedCharacterString (GML), char (CSV)

• Size: 35

• Multiplicity: [0..1]

• Source: Royal Mail

Town name

The name of the town the address is within.

• Attribute Name: townName (GML), TOWN_NAME (CSV)

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

• Size: 30

• Multiplicity: [0..1]

• Source: Contributing Local Authority

Administrative area

Local Highway Authority name.

• Attribute Name: administrativeArea (GML), ADMINISTRATIVE_AREA (CSV)

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

• Size: 30

• Multiplicity: [1]

• Source: Contributing Local Authority

Post town

The town or city in which the Royal Mail sorting office is located which services this record. There may be more than one, possibly several, sorting offices in a town or city.

• Attribute Name: postTown (GML), POST_TOWN (CSV)

• Condition: Post Town must be present if Royal Mail’s Unique Delivery Point Reference Number (UDPRN) is present.

• Data Type: LocalisedCharacterString (GML), char (CSV)

• Size: 35

• Multiplicity: [0..1]

• Source: Royal Mail

Welsh post town

The Welsh translation of post town value.

• Attribute Name: welshPostTown (GML), WELSH_POST_TOWN (CSV).

• Data Type: LocalisedCharacterString (GML), char (CSV)

• Size: 30

• Multiplicity: [0..1]

• Source: Royal Mail

Postcode

A postcode is an abbreviated form of address made up of combinations of between five and seven alphanumeric characters. These are used by Royal Mail to help with the automated sorting of mail. A postcode may cover between 1 and 100 addresses.

There are two main components of a postcode, for example, NW6 4DP:

• The outward code (or ‘outcode’). The first two–four characters of the postcode constituting the postcode area and the postcode district, for example, NW6. It is the part of the postcode that enables mail to be sent from the accepting office to the correct area for delivery.

• The inward code (or ‘incode’). The last three characters of the postcode constituting the postcode sector and the postcode unit, example, 4DP. It is used to sort mail at the local delivery office.

• Attribute Name: postcode (GML), POSTCODE (CSV)

• Condition: Postcode must be present if Royal Mail’s Unique Delivery Point Reference Number (UDPRN) is present.

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

• Size: 8

• Multiplicity: [0..1]

• Source: Royal Mail

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 with Polygons is used to spatially derive the postcode based on the position of the coordinates.

This field is always assigned the Code-Point with Polygons Postcode for Street Records (Classification “PS”).

This field must be used in conjunction with the RPC field to determine the accuracy of its position.

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

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

• Size: 8

• Multiplicity: [1]

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

Postcode type

Describes the address as a small or large user as defined by Royal Mail.

• Attribute Name: postcodeType (GML), POSTCODE_TYPE (CSV)

• Condition:

  • Postcode Type must be present if Royal Mail’s Unique Delivery Point Reference Number (UDPRN) is present.

  • Postcode Type Code must equal ‘L’ if PO Box Number is present.

• Size: 1

• Multiplicity: [0..1]

• Source: Royal Mail

Delivery point suffix

A two-character code uniquely identifying an individual delivery point within a postcode.

• Attribute Name: deliveryPointSuffix (GML), DELIVERY_POINT_SUFFIX (CSV)

• Condition: Delivery Point Suffix must be present if Royal Mail’s Unique Delivery Point Reference Number (UDPRN) is present.

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

• Size: 2

• Multiplicity: [0..1]

• Source: Royal Mail

Addressbase postal

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

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

• Condition: If AddressBase Postal value is ‘D’, UDPRN must be present.

• Size: 1

• Multiplicity: [1]

• Source: Royal Mail

Po box number

Post Office Box (PO Box) number.

• Attribute Name: poBoxNumber (GML), PO_BOX_NUMBER (CSV)

• Condition: Organisation Name or PO Box Number must be present if Building Name or Building Number are all not present.

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

• Size: 6

• Multiplicity: [0..1]

• Source: Royal Mail

Ward code

The Ward code for the ward which the address record falls within.

• Attribute Name: wardCode (GML), WARD_CODE (CSV)

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

• Size: 9

• Multiplicity: [0..1]

Parish code

The Parish code for the Parish which the address record falls within.

• Attribute Name: parishCode (GML), PARISH_CODE (CSV)

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

• Size: 9

• Multiplicity: [0..1]

RM start date

Date on which the Royal Mail address was loaded into the product database in CCYY-MM-DD format.

• Attribute Name: rmStartDate (GML), RM_START_DATE (CSV)

• Condition: RM Start Date must be present if Royal Mail’s Unique Delivery Point Reference Number (UDPRN) is present.

• Data Type: Date

• Multiplicity: [0..1]

• Source: Royal Mail

Multi occ count

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

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

• Data Type: Integer

• Size: 4

• Multiplicity: [0..1]

• Source: Ordnance Survey

VOA NDR primary description code

VOA non-domestic rates primary description code, for example, ‘IF2’.

• Attribute Name: voaNDRPDescCode (GML), VOA_NDR_DESC_CODE (CSV)

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

• Size: 5

• Multiplicity: [0..1]

• Source: Valuation Office Agency

VOA NDR scat code

VOA non-domestic rates special category code, for example, ‘016’.

• Attribute Name: voaNDRPScatCode (GML), VOA_NDR_SCAT_CODE (CSV)

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

• Size: 4

• Multiplicity: [0..1]

• Source: Valuation Office Agency

Alt language

Field describing the language of the alternative records.

• Attribute Name: altLanguage (GML), ALT_LANGUAGE (CSV)

• Size: 3

• Multiplicity: [0..1]

• Source: Contributing Local Authority

This release note provides information about the June 2024 release of the AddressBase Islands products. These products were released to customers on 27th June 2024.

Record Counts

Changed Records

If you receive a Change-Only Update (COU) supply for your AddressBase Islands product, you will receive Insert, Update and Delete records within the supplied file. The following tables detail the count of these records.

AddressBase Plus Islands

AddressBase Premium Islands

Source Data Currency

The following information relates to the currency of the source data used in the creation of Epoch 111:

Data Issues

AddressBase Plus Islands Issues

There are no reported issues in this release of AddressBase Plus Islands.

AddressBase Premium Islands issues

Affected output formats: CSV and GML

• Street incorrect coordinates – There are two Streets which have incorrect start or end coordinates of 000000. The unique identifiers can be provided upon request through your OS Relationship Manager.

Next Release

The next release of AddressBase Islands products, Epoch 112, is scheduled for 15th August 2024.

Record counts

Changed records

If you receive a Change-Only Update (COU) supply for your AddressBase Islands product, you will receive Insert, Update and Delete records within the supplied file. The following tables detail the count of these records.

AddressBase Plus Islands

AddressBase Premium Islands

Source data currency

The following information relates to the currency of the source data used in the creation of Epoch 113:

Data issues

AddressBase Plus Islands issues

There are no reported issues in this release of AddressBase Plus Islands.

AddressBase Premium Islands issues

Affected output formats: CSV and GML

• Street incorrect coordinates – There are two Streets which have incorrect start or end coordinates of 000000. The unique identifiers can be provided upon request through your OS Relationship Manager.

Next release

The next release of AddressBase Islands products, Epoch 114, is scheduled for 07 November 2024.

Record Counts

Changed Records

If you receive a Change-Only Update (COU) supply for your AddressBase Islands product, you will receive Insert, Update and Delete records within the supplied file. The following tables detail the count of these records.

AddressBase Plus Islands

AddressBase Premium Islands

Source Data Currency

The following information relates to the currency of the source data used in the creation of Epoch 110:

Data Issues

AddressBase Plus Islands Issues

There are no reported issues in this release of AddressBase Plus Islands.

AddressBase Premium Islands issues

Affected output formats: CSV and GML

• Street incorrect coordinates – There are two Streets which have incorrect start or end coordinates of 000000. The unique identifiers can be provided upon request through your OS Relationship Manager.

Next Release

The next release of AddressBase Islands products, Epoch 111, is scheduled for 27th June 2024.

Record Counts

Changed Records

If you receive a Change-Only Update (COU) supply for your AddressBase Islands product, you will receive Insert, Update and Delete records within the supplied file. The following tables detail the count of these records.

AddressBase Plus Islands

AddressBase Premium Islands

Source Data Currency

The following information relates to the currency of the source data used in the creation of Epoch 108:

Data Issues

AddressBase Plus Islands Issues

There are no reported issues in this release of AddressBase Plus Islands.

AddressBase Premium Islands issues

Affected output formats: CSV and GML

• Street incorrect coordinates – There are two Streets which have incorrect start or end coordinates of 000000. The unique identifiers can be provided upon request through your OS Relationship Manager.

Notification of Epoch 109’s Improvement in Historic BLPU State Code Completeness and Large Release Size

Summary

This release includes an enhancement in the clarity and consistency of life cycle representation within product.

A conformance improvement has been delivered for BLPU State attribute for records where the BLPU Logical Status was 8 (historic) and BLPU State was null, for increased completeness BLPU State Code has been populated with value 4 (no longer existing) and date stamped for the change applied.

Issue description

The BLPU state identifies the current life cycle stage of a property (or object) and is additional to the mandatory LOGICAL_ STATUS field.

The BLPU code is an optional attribute for Local Authority Custodians to complete and therefore this attribute may be NULL in product.

An improvement to the completeness of the BLPU State Code was identified as a quality enhancement for life cycle information as values for BLPU state code 4 can be accurately inferred from a Logical Status of 8. This enhancement allows the data to be interpreted more easily by removing conflict between addresses with a historic logical status and no BLPU state.

All nations within GB and the Islands product regions will benefit from this improvement, as such it impacts approximately 1.2 million records for a full supply.

Impact

This quality improvement means a larger than usual supply of COUs.

Next Release

The next release of AddressBase Islands products, Epoch 110, is scheduled for Thursday 16th May 024.

This release note provides information about the September 2024 (Epoch 113) release of AddressBase Islands Products.

This release note provides information about the August 2024 (Epoch 112) release of AddressBase Islands Products.

This release note provides information about the June 2024 (Epoch 111) release of AddressBase Islands Products.

This release note provides information about the May 2024 (Epoch 110) release of AddressBase Islands Products.

This release note provides information about the April 2024 (Epoch 109) release of AddressBase Islands Products.

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

Feature type attributes

The following sub-sections provide 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)

• 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)

• Data Type: Date

• Multiplicity: [0..1]

AddressBase Plus is structured as a flat file. The data structure in this document is described by means of Unified Modeling Language (UML) class diagrams.

Model overview CSV

Definition: The address of a property or object which is defined as the main/preferred address by Pointer, Isle of Man Property database, Channel Islands Address File (CAF), Ordnance Survey or Royal Mail.

The diagram below shows the UML model of AddressBase Plus Islands in CSV format; classes from the Ordnance Survey product specification are orange; code lists are blue, and enumerations are green.

Model overview GML

Definition: The address of a property or object which is defined as the main/preferred address by Pointer, Isle of Man Property database, Channel Islands Address File (CAF), Ordnance Survey or Royal Mail.

The diagram below shows the UML model of AddressBase Plus Islands in GML; classes from the Ordnance Survey product specification are orange, code lists are blue and enumerations are green.

The AddressBase Plus Islands product will be distributed as a comma-separated values (CSV) file or Geography Markup Language (GML) version 3.2. Both of these formats can either be supplied as a full supply or a change-only update (COU) supply.

CSV

The CSV supply of AddressBase Plus means:

• There will be one record per line in each file.

• Fields will be separated by commas.

• String fields will be delimited by double quotes.

• No comma will be placed at the end of each row in the file.

• Records will be terminated by Carriage Return / Line Feed.

• Double quotes inside strings will be escaped by doubling.

Where a field has no value in a record, two commas will be placed together in the record (one for the end of the previous field and one for the end of the null field). Where the null field is a text field, double quotes will be included between the two commas, for example:

AddressBase Plus CSV data will be transferred using Unicode encoded in UTF-8. Unicode includes all the characters in ISO-8859-14. Some accented characters are encoded differently.

The transfer will normally be in a single file, but the data can be split into multiple files using volume numbers. Most files will only be split where there are more than one million records.

The header row for the CSV is supplied separately and can be downloaded from the product support pages.

GML

A GML document is described using a GML Schema. The AddressBase Plus Islands schema document (addressbaseplus.xsd) defines the features in AddressBase Plus GML.

The application schema uses the following XML namespaces, for which definitions are available as given here:

Features

Each feature within the AddressBaseSupplySet:FeatureCollection is encapsulated in the following member element according to its feature type:

The UPRN of the feature is provided in the XML attribute of the gml:id:

Envelope

In the GML supply, you can determine the extent of your supply by the <gml: Envelope>. For example:

The following sections provides example records for both the CSV and GML supplies.

Example records

• CSV

• GML

Original feature – AddressBase Plus Islands GML

<abpl:addressMember>
<abpl:Address gml:id="uk.geoplace.uprn.185536894">
<abpl:uprn>185536894</abpl:uprn>
<abpl:udprn>3652790</abpl:udprn>
<abpl:changeType>I</abpl:changeType>
<abpl:class>RD03</abpl:class>
<abpl:position>
<gml:Point srsName="urn:ogc:def:crs:EPSG::27700" gml:id="uk.geoplace.uprn.p.185536894">
<gml:pos>281855.00 438598.00</gml:pos>
</gml:Point>
</abpl:position>
<abpl:positionLatLong>
<gml:Point srsName="urn:ogc:def:crs:EPSG::4258" gml:id="uk.addressbase.uprn.pl.185536894">
<gml:pos>53.8295615 -3.7951397</gml:pos>
</gml:Point>
</abpl:positionLatLong>
<abpl:rpc>1</abpl:rpc>
<abpl:localCustodianCode>8112</abpl:localCustodianCode>
<abpl:country>N</abpl:country>
<abpl:laStartDate>2015-07-01</abpl:laStartDate> <abpl:lastUpdateDate>2015-07- 15</abpl:lastUpdateDate>
<abpl:entryDate>2015-06-31</abpl:entryDate>
<abpl:buildingName>EXAMPLE BUILDING</abpl:buildingName>
<abpl:buildingNumber>17</abpl:buildingNumber>
<abpl:paoStartNumber>17</abpl:paoStartNumber>
<abpl:usrn>12345678</abpl:usrn>
<abpl:usrnMatchIndicator>1</abpl:usrnMatchIndicator>
<abpl:streetDescription xml:lang="en">HIGH ROAD</abpl:streetDescription>
<abpl:thoroughfare xml:lang="en">HIGH ROAD</abpl:thoroughfare>
<abpl:townName xml:lang="en">PORTSTEWART</abpl:townName>
<abpl:administrativeArea xml:lang="en">COLERAINE</abpl:administrativeArea>
<abpl:postTown xml:lang="en">PORTSTEWART</abpl:postTown>
<abpl:postcode>BT55 7BG</abpl:postcode>
<abpl:postcodeLocator>BT55 7BG</abpl:postcodeLocator>
<abpl:postcodeType>S</abpl:postcodeType>
<abpl:addressbasePostal>D</abpl:addressbasePostal>
<abpl:rmStartDate>2015-07-02</abpl:rmStartDate>
<abpl:multiOccCount>0</abpl:multiOccCount>
</abpl:Address>
</abpl:addressMember>

COU feature – AddressBase Plus Islands GML

Changed fields are annotated (underlined).

A code list or enumeration is a controlled set of values which can be used to populate a specific column. The code list and enumeration UML models associated with AddressBase Plus Islands can be found below, with their appropriate descriptions.

AddressBase Plus code list and enumerations

• RPCCode

• StateCode

• LanguageCode

• PostcodeTypeCode

• OfficalFlagCode

• ChangeTypeCode

• USRNMatchIndicatorCode

• AddressbasePostalCode

• CountryCode

The naming of attributes between GML and CSV will be different due to the requirements of the file formats. For convenience, the following table maps the CSV attribute name to the GML attribute name.