This release note provides information about the release of the AddressBase Core product on 21 January 2025.
AddressBase Core
34 573 091
38 721
These counts are based on a Managed Great Britain Set (MGBS). If you ordered your national coverage via the online ordering system using a polygon outline, your counts may differ.
There is a difference in record counts between taking a national Managed Great Britain Set (MGBS) and the national 5km-tile supply. This is because the two supplies use different selection criteria. The difference in record counts is shown in the following table, allowing you to validate your data holdings once you have loaded the latest release of AddressBase Core.
AddressBase Core
34 573 091
34 573 083
8
A small difference in record counts is expected due to there being several features supplied in the MGBS which fall outside of the tiled area.
There is an additional feature in the 21/01/2025 release that is supplied in the MGBS dataset, but not in the National 5km Tiled supply. The feature details are as follows:
UPRN","CLASSIFICATION_CODE","LAST_UPDATE_DATE","SINGLE_LINE_ADDRESS","GSS_CODE"
130200314,"LD",2025-01-16 00:00:00,"LAND 57KM EAST OF SCOTTISH WATER TREATMENT WORKS, BROADHAVEN ROAD, WICK, KW1 5HA","S12000017"
If you receive a Change-Only Update (COU) supply for your AddressBase Core product, you will receive Insert, Update and Delete records within the supplied file. The following table details the numbers of these records which can be expected in the COU supply of the product:
Inserts
7 882
Updates
27 119
Deletes
3 720
COU populated 5km tile count
3 712
The following information relates to the currency of the source data used in the creation of this release of AddressBase Core:
Royal Mail Postcode Address File (PAF)
17 January 2025
National Land and Property Gazetteer
17 January 2025
One Scotland Gazetteer
06 January 2025
OS MasterMap Topography Layer
28 November 2024
It is important that COUs are processed with Deletes first, then Inserts and Updates. This is to ensure that updates are applied in the correct order. Guidance on this can be found in the .