AddressBase Core
Here you will find all documentation for the AddressBase Core product.
Local Authority data is at the heart of AddressBase Core. This data provides you with a complete address product; access to over 33 million addresses each unique referenced with the Unique Property Reference Number (UPRN) and property level coordinates.
AddressBase Core takes many of the important elements from the other AddressBase products, such as coordinates, classification and cross-references to connect address information to other products via key identifiers.
AddressBase Core's primary source of addressing information is Local Authority data from the National Land and Property Gazetteer (NLPG) and One Scotland Gazetteer (OSG). They have the legal responsibility to capture and maintain address data for Great Britain, so you are assured of its authenticity and legal nature.
Address information is provided in an easy-to-use format alongside a single line attribute which concatenates all the address elements into what you would expect to see on an envelope. It is updated weekly and is offered in an easier to digest format to make the product as easy to access and use as possible.
Customers have asked for easy file formats, so CSV and GeoPackage are available for this product, with headers included – removing the need for any post-processing. Simply load, or drag and drop into a GIS package to start analysing.
Approved addressing records
AddressBase Core provides approved addressing records for England, Wales and Scotland based on Local Authority holdings of the National Land and Property Gazetteer (NLPG) and One Scotland Address Gazetteer (OSG). Other attribution includes property-level coordinates and secondary level classifications (detailing the use and type of an address).
Property classification
Through property classification attributes, you can quickly understand, locate and perform analysis on the type of addresses you want to interact with.
Authoritative data
AddressBase Core's primary source of addressing information is local authority data. They have the legal responsibility to capture and maintain address data for Great Britain, so you can be sure of its authenticity and legal nature.
Weekly updates
AddressBase Core is released weekly, keeping you more up to date with changes.
Property classification
Making the most of the property classification attributes, you can quickly understand, locate and perform analysis on the type of addresses you want to interact with.
Easy cross-referencing
AddressBase Core makes it easier to locate, match and gain insights from other location data with the benefit of having key identifiers referenced throughout. The Unique Property Reference Number (UPRN), Unique Street Reference Number (USRN) and Topographic Identifier (TOID) allow users to reference to other OS products.
Access: Download
Data theme: Address
Data structure: Vector – Points
Coverage: Great Britain
Scale: 1:1 250 to 1:10 000
Format: CSV, GeoPackage
Ordering area: All of Great Britain or customisable area (5km² tiles or user-defined polygon)
Advantage of AddressBase Core over other AddressBase products
AddressBase Core takes many of the high importance items from the other AddressBase products, such as coordinates, classifications (type of address) and links to other important identifiers; but it also includes a single attribute for an address line, is updated weekly, and is offered in an easier to digest format to make the product as easy to access and use as possible.
Properties yet to be built or have been demolished
Properties yet to be built, or those which have been demolished, do not appear in AddressBase Core. In order to keep AddressBase Core as simple as possible, these records are not present. If these are critical to you, please look at AddressBase Premium.
AddressBase Core epoch correspondence
AddressBase Core is released weekly and has a different data extraction date compared to the 6-weekly release schedule of the other AddressBase products. Due to these differences, AddressBase Core will not correspond to any of the epochs.
Coverage of AddressBase Core
AddressBase Core covers Great Britain only, i.e. England, Wales and Scotland. It does not include Northern Ireland and the Channel Islands.
Data from Royal Mail’s PAF
The database is a vital component of the single address gazetteer database and is in each of the AddressBase products where there has been a match confirming the address to the LLPG address.
How to get this product
Access to this product is free for PSGA (Public Sector Geospatial Agreement) Members. You can check if your organisation is a member of the PSGA on the OS website.
The AddressBase Core product page on the OS website has advice on how to get the product for businesses, developers, OS Partners and PSGA Members (i.e. government and the public sector).
Alternatively, you can try out the full product by applying for a Data Exploration license.
Sample data
Download AddressBase Core sample data
You can download sample data for the product for free from the OS Data Hub. The sample data are available in CSV format and cover one area (Exeter).
Visualise AddressBase Core sample data online
This product is available to try out free online using one of our three sets of sample data (Exeter, Newport and Inverness) through the OS MasterMap Product Viewer:
What's next?
To access documentation and resources relating to this product, please refer to the following:
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