AddressBase Plus attribute comparison
Detailed attribute comparison for AddressBase Plus to the equivalent OS NGD Feature Types
Royal Mail Address Feature Type
The Royal Mail Address Feature Type (data schema version 1.0) was released 30 September 2025, providing 100% of Royal Mail Postcode Address File (PAF) with point geometry. At the same time the pre-existing OS NGD Address Feature Types (Built Address, Historic Address, Non-Addressable Object and Pre-Build Address) were also updated to a new data schema version (v3.0).
Prior to this release, Royal Mail PAF data was only available for matched addresses and supplied in the Feature Types' corresponding Postal Address Related Components.
The Postal Address Related Component has therefore been discontinued from the pre-existing Feature Types data schema version 3.0 but is still provided against the older (maintenance) data schema versions 1.0 and 2.0.
However, for complete coverage and ease of use it is recommended to use the new Royal Mail Address Feature Type.
Built/Historic/Pre-Build Address
Attribute serves the same purpose.
Built/Historic/Pre-Build Address
The AddressBase State has been enhances by splitting into two attributes, buildstatus referring to the ‘physical’ state of the building, and addressstatus referring to address lifecycle stage.
N/A
Built/Historic/Pre-Build Address
N/A
Attribute serves the same purpose, but is also enhanced with the additional attributes classificationdescription, primaryclassificationdescription, secondaryclassificationdescription, tertiaryclassificationdescription, and quaternaryclassificationdescription. Removing the requirement for a separate lookup table.
N/A
Built/Historic/Pre-Build Address
N/A
Attribute serves the same purpose but is also enhanced with the additional attributes rootuprn and hierarchylevel, which provides the top-level Addressable Object in the parent-child structure and where an address sits in that hierarchy respectively.
N/A
Built/Historic/Pre-Build Address
N/A
Attributes serve the same purpose.
Built/Historic/Pre-Build Address
Attribute serves the same purpose. It is now the full description rather than a code.
N/A
Built/Historic/Pre-Build Address
N/A
Attribute serves the same purpose, but is also enhanced with the additional attribute localcustodiandescription, removing the requirement for a separate lookup table.
Built/Historic/Pre-Build Address
Attribute serves the same purpose. It is now the full name rather than a code.
N/A
Built/Historic/Pre-Build Address
N/A
The OS NGD's effective start date is the earliest date between AddressBase's Local Authority start date and entry date.
N/A
Built/Historic/Pre-Build Address
N/A
The OS NGD's effective start date is the earliest date between AddressBase's Local Authority start date and entry date.
N/A
Built/Historic/Pre-Build Address
N/A
Attribute serves the same purpose.
N/A
N/A
N/A
N/A
Legal name cannot currently be populated by local authorities in England and Wales, and there are no plans for it to be populated. Less than 0.1% of records contain a value for legal name which are all located in Scotland, due to a difference in specification there. There are no plans to increase this population and instead the use of organisationname is encouraged.
N/A
Built/Historic/Pre-Build Address
N/A
The SAO attributes are now combined into the single attribute subname.
N/A
Built/Historic/Pre-Build Address
N/A
The SAO attributes are now combined into the single attribute subname.
N/A
Built/Historic/Pre-Build Address
N/A
The SAO attributes are now combined into the single attribute subname.
N/A
Built/Historic/Pre-Build Address
N/A
The SAO attributes are now combined into the single attribute subname.
N/A
Built/Historic/Pre-Build Address
N/A
The SAO attributes are now combined into the single attribute subname.
N/A
Built/Historic/Pre-Build Address
N/A
Attribute serves the same purpose.
N/A
Built/Historic/Pre-Build Address
N/A
The PAO number attributes are now combined into the single attribute number.
N/A
Built/Historic/Pre-Build Address
N/A
The PAO number attributes are now combined into the single attribute number.
N/A
Built/Historic/Pre-Build Address
N/A
The PAO number attributes are now combined into the single attribute number.
N/A
Built/Historic/Pre-Build Address
N/A
The PAO number attributes are now combined into the single attribute number.
N/A
Built/Historic/Pre-Build Address
N/A
Attribute serves the same purpose.
Built/Historic/Pre-Build Address
Attribute serves the same purpose. It is now the full description rather than a code.
N/A
N/A
N/A
N/A
This attribute is used to show the third level of geographic area name. Offical address components will be found within the relevant locality / townname / islandname attribution
N/A
Built/Historic/Pre-Build Address
N/A
Attribute serves the same purpose but is also enhanced with the additional attributes lowestfloorlevel and highestfloorlevel.
Built/Historic/Pre-Build Address
N/A
N/A
This attribute is no longer required as the Official Address will always in the main Feature Type (i.e. Built/Historic/Pre-Build Address), alternate addresses are in the held in the Alternate Address, Related Component table.
N/A
N/A
N/A
N/A
This is a legacy cross reference that is no longer populated or maintained.
N/A
N/A
N/A
N/A
This is a legacy cross reference that is no longer populated or maintained.
N/A
Built/Historic/Pre-Build Address
Available in the Related Entity, Related Component table
N/A
Information is now provided in a cross-reference table. Not only is the OSMM Road Link TOID provided but also the new OS NGD Road Link (along with other OS NGD related feature types)
N/A
N/A
N/A
N/A
The TOID version attribute is no longer supplied as the latest version of TOID is always included.
N/A
Built/Historic/Pre-Build Address
Available in the Related Entity, Related Component table
N/A
Information is now provided in a cross-reference table. Not only is the OSMM Topographic Area TOID provided but also the new equivalent OS NGD feature types.
N/A
N/A
N/A
N/A
The TOID version attribute is no longer supplied as the latest version of TOID is always included.
N/A
Built/Historic/Pre-Build Address
Available in the Other Classification, Related Component table
N/A
Information is now provided in a cross-reference table as 'VOA Council Tax'.
N/A
Built/Historic/Pre-Build Address
Available in the Other Classification, Related Component table
N/A
Information is now provided in a cross-reference table as 'VOA Non Domestic Rates'.
N/A
Built/Historic/Pre-Build Address
N/A
Attribute serves the same purpose.
N/A
Built/Historic/Pre-Build Address
N/A
Attribute serves the same purpose.
N/A
Royal Mail Address
N/A
Attribute serves the same purpose.
N/A
Royal Mail Address
N/A
Attribute serves the same purpose.
N/A
Royal Mail Address
N/A
Attribute serves the same purpose.
N/A
Royal Mail Address
N/A
Attribute serves the same purpose.
N/A
Royal Mail Address
N/A
Attribute serves the same purpose.
N/A
Street Address
N/A
In AddressBase Plus this was the Local Highway Authority name. This can be found in the Street Address feature type and is now supplied additionally with the authority's code as well as name.
Royal Mail Address
Attribute serves the same purpose. It is now the full description rather than a code.
Built/Historic/Pre-Build Address
Attribute serves the same purpose. It is now the full description rather than a code.
N/A
Built/Historic/Pre-Build Address/Royal Mail Address
N/A
Attribute serves the same purpose.
N/A
Built/Historic/Pre-Build Address
Available in the Related Entity, Related Component table
N/A
Information is now provided in a cross-reference table as 'Ward'.
N/A
Built/Historic/Pre-Build Address
Available in the Related Entity, Related Component table
N/A
Information is now provided in a cross-reference table as 'Parish Or Community'.
N/A
Built/Historic/Pre-Build Address
parentuprn, rootuprn, and hierarchylevel
N/A
Full hierarchy is now provided via the parentuprn, rootuprn, and hierarchylevel attributes. Using these attributes it is possible to traverse up and down the hierarchy and determine any exact counts as required. It is also possible to calculate this using the OS NGD Building and Building Part Feature types.
N/A
Built/Historic/Pre-Build Address
Available in the Other Classification, Related Component table
N/A
Information is now provided in a cross-reference table as 'VOA Primary Description'.
N/A
Built/Historic/Pre-Build Address
Available in the Other Classification, Related Component table
N/A
Information is now provided in a cross-reference table as 'VOA Special Category'.
Built/Historic/Pre-Build Address
Attribute serves the same purpose.
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