AddressBase Products February 2025 – Epoch 116

This release note provides information about the February 2025 (Epoch 116) release of the AddressBase products. These products were released to customers on 06 February 2025.

Known issues will now be displayed on the 'Product Known Data Issues' subpages under each product.

Record counts

Product	Full Supply Record Count	Change-Only Update Record Count
OS Open UPRN	41,011,955	N/A
AddressBase	30,652,138	157,150
AddressBase Plus	38,252,424	582,353
AddressBase Premium	See rows below	See rows below
Street	1,513,089	5,202
Street Descriptor	1,636,881	2,918
BLPU	41,011,955	320,110
Classification	44,837,171	154,389
LPI	46,230,831	129,683
Organisation	1,407,564	16,239
Delivery Point Address	30,761,334	69,996
Application Cross Ref.	198,758,385	736,674
Successor	0	0

• The Full Supply record counts are based on a Managed Great Britain Set (MGBS). If you have ordered your national coverage via the online ordering system using a polygon outline, then your counts may differ.

• Please note that Change-Only Updates (COUs) are not available for the OS Open UPRN product.

Product supply comparison

There is a difference in product counts between taking a national Managed Great Britain Set (MGBS) and a national Area of Interest (AOI). This is because the two supplies use different selection criteria. The differences are shown in the following table, allowing for you to validate your data holdings once you have loaded the latest release of AddressBase data.

The national AOI refers to the pre-selection GB polygon from our download store. Therefore, if you have drawn your own AOI, the count will vary.

If you are unsure of your supply type, please check this with your OS Relationship Manager.

Product	MGBS Full Count	National AOI Full Count	Difference
AddressBase	30,652,138	30,652,138	0
AddressBase Plus	38,252,424	38,252,403	21
AddressBase Premium	See rows below	See rows below	See rows below
Street	1,513,089	1,513,086	3
Street Descriptor	1,636,881	1,636,878	3
BLPU	1,011,955	41,011,930	25
Classification	44,837,171	44,837,146	25
LPI	6,230,831	46,230,805	26
Organisation	407,564	1,407,562	2
Delivery Point Address	30,761,334	30,761,334	0
Application Cross Ref.	198,758,385	198,758,360	25
Successor	0	0	0

It's important that COUs are processed with Deletes first, then Inserts and Updates. This is to ensure that updates are applied in the correct order. Further guidance on this can be found in 'Working with COU data' in the AddressBase Getting Started Guide.

Changed records

If you receive a Change-Only Update (COU) supply for your AddressBase product, you will receive Insert, Update and Delete records within the supplied file. The following tables detail the numbers of these records which can be expected in an MGBS supply, and also how many tiles are affected if you take your supply as Changed Chunks.

AddressBase

Change Type	Count
Inserts	43,892
Updates	103,297
Deletes	9,961
COU Populated Tile Count	5,743

AddressBase Plus

Change Type	Count
Inserts	48,887
Updates	521,021
Deletes	12,445
COU Populated Tile Count	6,909

AddressBase Premium

AddressBase Premium Table	Inserts	Updates	Deletes
Street	1,633	3,535	34
Street Descriptor	1,684	1,194	40
BLPU	42,757	274,322	3,031
Classification	52,337	82,401	19,651
LPI	57,853	67,612	4,218
Organisation	4,337	4,480	7,422
Delivery Point Address	44,752	15,200	10,044
Application Cross Ref.	192,512	509,368	34,794

Source data currency

The following information relates to the currency of the source data used in the creation of Epoch 116:

Data Source	Date
Royal Mail PAF	02 January 2025
National Land and Property Gazetteer	02 January 2025
One Scotland Gazetteer	09 December 2024
VOA Non-Domestic Rates	23 December 2024
VOA Council Tax	23 December 2024
OS MasterMap Topography Layer	28 November 2024
OS MasterMap Highways Network	05 December 2024
Code-Point with Polygons	02 January 2025
Boundary-Line	02 October 2024

Improvements in Epoch 116

Valuation Office Agency matching

The match rates for Council Tax and Non-Domestic Rates for Epoch 116 are detailed as follows based on Valuation Office Agency (VOA) records up to 23 December 2024. The match rate is applicable to the AddressBase Premium product.

Data Source	Records Received	% Matched
Council Tax	27,227,905	99.92
Non-Domestic Rates	2,120,341	96.44

Tertiary classifications

Work is being undertaken to improve the classifications of records within the AddressBase products. This work has resulted in 49 241 more tertiary classifications present in Epoch 116 compared to Epoch 115. Indeed, 88.69 % of these tertiary classification improvements are against residential codes.

Next release

The next release of AddressBase products, Epoch 117, is scheduled for 20 March 2025.