# AddressBase Plus Documentation

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**Product nearing its End of Life (withdrawal) date**

The AddressBase Plus product will become End of Life on 29 November 2027. As of this date, Ordnance Survey will cease to maintain or publish updates to the product.

Further information and details about the recommended product migration pathway are available on the [End of Life Notice – AddressBase Plus page](https://docs.os.uk/os-downloads/resources/product-resources/end-of-life-product-notices/end-of-life-notice-addressbase-plus).
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AddressBase Plus contains current properties using addresses sourced from Local Authorities, Ordnance Survey and Royal Mail for England, Wales and Scotland. The product currently contains approximately 37 million records.

The product contains all current addresses validated from Local Custodians and non-postal addresses such as ponds, electricity sub-stations and telephone boxes are also included.

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, and display the Local Authority address elements or the Royal Mail address elements where matched.

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**This product is updated every six weeks.**
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<figure><img src="https://1897589978-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FcNpJpLP8RROUaWVQo5ea%2Fuploads%2FPByOdSMdiWIs8tAVOJjW%2FAddressBase-Plus-3.png?alt=media&#x26;token=61284db5-3e4c-4fd3-a41a-a3cc2f320cc6" alt="Representation of AddressBase Plus data showing addresses identified on a background map" width="563"><figcaption><p>Representation of AddressBase Plus data showing addresses identified on a background map.</p></figcaption></figure>

{% hint style="info" %}
Please see [Getting started with AddressBase products](https://docs.os.uk/os-downloads/products/addresses-and-names-portfolio/addressbase/addressbase-getting-started-guide) for instructions on how to load and work with AddressBase data; this is a composite guide for [AddressBase](https://docs.os.uk/os-downloads/products/addresses-and-names-portfolio/addressbase), [AddressBase Plus](https://docs.os.uk/os-downloads/products/addresses-and-names-portfolio/addressbase-plus) and [AddressBase Plus Islands](https://docs.os.uk/os-downloads/products/addresses-and-names-portfolio/addressbase-plus-islands).
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{% tabs %}
{% tab title="Benefits" %}
**Flat file model**

AddressBase Plus is structured in a flat file model – containing current properties and addresses sourced from local authorities, Ordnance Survey and Royal Mail matched to the UPRN.

**Accuracy guaranteed**

The address information is sourced from 380 local authorities across Great Britain, our own large-scale mapping, Royal Mail and the Valuation Office Agency.

**Useful addresses**

As well as 28 million defined properties, Ordnance Survey have included more than 7 million local authority addresses, such as depots and church halls, places of worship and community centres.

**Property classification**

Understanding the need to categorise properties, Ordnance Survey incorporated a four-level classification scheme that explains the function of each property.
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{% tab title="Use Cases" %}
**Individual address referencing for direct marketing teams**

Take your data analysis to the next level by referencing data to individual addresses (such as flats) rather than mail delivery points (houses divided into flats).

**Property classification**

Understanding the need to categorise properties, Ordnance Survey incorporated a four-level classification scheme that explains the function of each property.
{% endtab %}

{% tab title="Summary" %}

* **Access:** Download via the [OS Data Hub](https://osdatahub.os.uk/)
* **Data theme:** Address
* **Data structure:** Vector – Points
* **Coverage:** Great Britain
* **Scale:** 1:1 250 to 1:10 000
* **Format:** CSV, GML 3.2.1
* **Ordering area:** All of Great Britain or customisable area (5km² tiles or user-defined polygon)
  {% endtab %}

{% tab title="Additional Information" %}
**Advantage of AddressBase Plus over AddressBase**

AddressBase contains Royal Mail PAF addresses and assigns an x and y coordinate to every address. This lets you carry out only relatively basic analysis.

AddressBase Plus also includes current properties and addresses sourced from local authorities, Ordnance Survey and Royal Mail. Records are matched to the UPRN and structured in a flat-file model.

AddressBase Plus holds more records than AddressBase as it includes objects without postal addresses, such as subdivided properties, places of worship and community centres. It also allows the end-user to locate an address or property on a map, through the assigned x and y coordinates.

Crucially, cross-referencing the information with OS MasterMap products via the OS MasterMap Topography Layer and Topographic Identifiers (TOIDs) lets you view address data within a wider geographic context.

**Properties yet to be built**

Properties yet to be built do not appear in AddressBase Plus. You'd need AddressBase Premium for this information. It's ideal when you're planning the future provision of infrastructure services such as sewerage or high-speed broadband.

**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.
{% endtab %}
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## 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](https://www.ordnancesurvey.co.uk/customers/public-sector/psga-member-finder).

AddressBase Plus will reach its [end of life](https://docs.os.uk/os-downloads/resources/product-resources/end-of-life-product-notices/end-of-life-notice-addressbase-plus) in Autumn 2027. Until then you can access the data via the [OS Data Hub](https://osdatahub.os.uk/).

## Sample data

### Download AddressBase Plus sample data <a href="#download-os-egs-sample-data" id="download-os-egs-sample-data"></a>

You can download sample data for the product for free from the [OS Data Hub](https://osdatahub.os.uk/data/downloads/sample/AddressBasePlus). The sample data are available in CSV and GML 3.2 formats and cover one area (Exeter).

### Visualise AddressBase Plus 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:

<table data-view="cards" data-full-width="false"><thead><tr><th></th><th></th><th data-hidden></th><th data-hidden data-card-cover data-type="image">Cover image</th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><strong>OS MasterMap Product Viewer</strong></td><td>Interactive demonstrator of OS MasterMap Generation data</td><td></td><td data-object-fit="cover" data-alt="Example image showing OS VectorMap Local product data over an urban area."><a href="https://1897589978-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FcNpJpLP8RROUaWVQo5ea%2Fuploads%2Fuld7V42IKrB8ovpC1JXB%2FVectorMap-Local-1.png?alt=media&#x26;token=cb3e8ae9-d669-4bc9-b7a7-5f479d780447">VectorMap-Local-1.png</a></td><td><a href="https://experience.arcgis.com/experience/20981dabcb14402687dccb437a4a78fb/">https://experience.arcgis.com/experience/20981dabcb14402687dccb437a4a78fb/</a></td></tr></tbody></table>

## Other ways to access this data

AddressBase Plus will reach its end of life in November 2027. We recommend that existing customers migrate to using the [OS GB Address Collection](https://docs.os.uk/osngd/data-structure/address/gb-address) as it contains data that enables you to access Local Authority Address information, Unique Property Reference Numbers (UPRNs) and premium attribution. Benefits to using OS GB Address Collection data over AddressBase Plus data are listed on the [AddressBase Plus End of Life notification](https://docs.os.uk/os-downloads/resources/product-resources/end-of-life-product-notices/end-of-life-notice-addressbase-plus#what-are-the-benefits-to-using-gb-address-collection-data).

## What's next?

To access documentation and resources relating to this product, please refer to the following:

<table data-view="cards"><thead><tr><th></th><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th><th data-hidden data-card-cover data-type="image">Cover image</th></tr></thead><tbody><tr><td><h4>AddressBase Plus Lightning Talk</h4></td><td>A helpful introductory article hosted on our More than Maps platform providing additional information and context about using AddressBase Plus data.</td><td></td><td><a href="https://docs.os.uk/more-than-maps/data-demonstrators/addressing-and-location-demonstrators/addressbase-plus">https://docs.os.uk/more-than-maps/data-demonstrators/addressing-and-location-demonstrators/addressbase-plus</a></td><td data-object-fit="cover" data-alt="Graphic showing the names of four of the addressing products: AddressBase, AddressBase Core, AddressBase Plus and AddressBase Premium."><a href="https://1897589978-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FcNpJpLP8RROUaWVQo5ea%2Fuploads%2FvsPD97vE32Xqnskto09Z%2Fimage%20(3).png?alt=media&#x26;token=b38414aa-6930-4124-bba0-21dbb191399d">image (3).png</a></td></tr><tr><td><h4>AddressBase Fundamentals</h4></td><td>The AddressBase Fundamentals pages provide an overview of the 'family' of AddressBase products, covering key elements of design for AddressBase products.</td><td></td><td><a href="addressbase-fundamentals">addressbase-fundamentals</a></td><td data-object-fit="cover" data-alt="Example image showing AddressBase product data over a background map."><a href="https://1897589978-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FcNpJpLP8RROUaWVQo5ea%2Fuploads%2FqgYi8w0EfdWfMB0AsffB%2FAddressBase-Plus-1.png?alt=media&#x26;token=a6cc0eb7-2593-47ee-825e-2c18dd617eef">AddressBase-Plus-1.png</a></td></tr><tr><td><h4>Getting Started Guide</h4></td><td>The getting started guide provides instructions for using three AddressBase products in different software applications. Users with limited technical knowledge will be able to follow this guide.</td><td></td><td><a href="addressbase/addressbase-getting-started-guide">addressbase-getting-started-guide</a></td><td data-object-fit="cover" data-alt="Example image showing AddressBase Plus product data over a background map."><a href="https://1897589978-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FcNpJpLP8RROUaWVQo5ea%2Fuploads%2FTLaiCsHNAAQeau5RS6dF%2FAddressBase-Plus-2.png?alt=media&#x26;token=ebbaaa93-0cf3-423a-909b-08ced31fc4d8">AddressBase-Plus-2.png</a></td></tr><tr><td><h4>Technical Specification</h4></td><td>The technical specification provides detailed technical information about AddressBase Plus. It is targeted at technical users and software developers.</td><td></td><td><a href="addressbase-plus/addressbase-plus-technical-specification">addressbase-plus-technical-specification</a></td><td data-object-fit="cover" data-alt="Example image showing AddressBase Plus product data over a background map."><a href="https://1897589978-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FcNpJpLP8RROUaWVQo5ea%2Fuploads%2FdeU2Nb6ymkTyM4p8NfcZ%2FAddressBase-Plus-3.png?alt=media&#x26;token=c5b4802f-2779-4c2e-b218-0346f0884656">AddressBase-Plus-3.png</a></td></tr><tr><td><h4>Downloads</h4></td><td>The downloads page provides links and resources to support the application of AddressBase Plus within your environment.</td><td></td><td><a href="addressbase-plus/addressbase-plus-downloads">addressbase-plus-downloads</a></td><td data-object-fit="cover" data-alt="Example image showing AddressBase Plus product data over a background map."><a href="https://1897589978-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FcNpJpLP8RROUaWVQo5ea%2Fuploads%2Fy9cboz6PxWPvVOI8RhJv%2FAddressBase-Plus-4.png?alt=media&#x26;token=a17fba69-4389-4c87-84bf-eb0b38af71dd">AddressBase-Plus-4.png</a></td></tr><tr><td><h4>Ordnance Survey Website</h4></td><td>View AddressBase Plus product information and find out how to get this product on the OS website.</td><td></td><td><a href="https://www.ordnancesurvey.co.uk/products/addressbase-plus">https://www.ordnancesurvey.co.uk/products/addressbase-plus</a></td><td data-object-fit="cover" data-alt="Example image showing AddressBase Plus product data over a background map."><a href="https://1897589978-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FcNpJpLP8RROUaWVQo5ea%2Fuploads%2FQu3luYQMBF3U429YzbYb%2FAddressBase-Plus-2.png?alt=media&#x26;token=df965dfd-788d-4673-b860-7c8332e77244">AddressBase-Plus-2.png</a></td></tr></tbody></table>

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New users should start with the Fundamentals pages to gain high-level insight into AddressBase products. The Getting Started Guide will help you to begin using product data in different software systems. The Technical Specification contains detailed technical insights.
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