> For the complete documentation index, see [llms.txt](https://docs.os.uk/os-downloads/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.os.uk/os-downloads/~/changes/AJZwzCsyrD9hiTbOxIbO/addressing-and-location/addressbase-premium-islands.md). # AddressBase Premium Islands {% embed url="" %} AddressBase Premium Islands provides the most detailed view of an address and its lifecycle for Northern Ireland, Channel Islands and the Isle of Man. It has more records than AddressBase Plus Islands as it provides all the information relating to an address or property from creation to retirement. {% hint style="info" %} **This product is updated every six weeks.** {% endhint %} {% hint style="info" %} Please see [AddressBase Premium getting started guide](/os-downloads/~/changes/AJZwzCsyrD9hiTbOxIbO/addressing-and-location/addressbase-premium/addressbase-premium-getting-started-guide.md) for instructions on how to load and work with AddressBase Premium Islands data. {% endhint %}
Representation of AddressBase Islands data showing shaded areas of land in red against a white backdrop

Representation of AddressBase Islands data

{% tabs %} {% tab title="Features" %} #### **Addressing outside of Great Britain** For the first time, AddressBase customers can access over 1 million extra records complete with the Unique Property Reference Number (UPRN), outside of Great Britain. Get a three-month free trial of AddressBase Islands data by signing up to our Data Exploration Licence. #### **Boost your marketing ROI** AddressBase Islands means you can run successful national campaigns - or build awareness in new markets, targeting households in properties converted into flats, for example. #### **Available in two versions** AddressBase Islands is available in two versions, allowing you to attach it to your existing GB AddressBase product, whether that's AddressBase Plus or AddressBase Premium. #### **Straightforward licensing** We offer the same style of licence for AddressBase Islands as existing AddressBase products. This ensures you can use your AddressBase Islands data in a consistent way across the United Kingdom and Crown Dependencies. {% endtab %} {% tab title="Use Cases" %} #### **Consistent property information** For major businesses offering household services nationwide, taking AddressBase Islands means you have consistent property information for Northern Ireland, the Channel Islands and the Isle of Man on tap from a single source. #### **Reliable records** in the busy call centre environment, your staff will always get results no matter where the address is located, and because our data is regularly updated, your records will be more reliable, too. {% endtab %} {% tab title="Summary" %} * **Access:** Download * **Data theme:** Address * **Data structure:** Vector – Points * **Coverage:** Northern Ireland, Channel Islands and Isle of Man * **Scale:** 1:1 250 to 1:10 000 * **Format:** CSV, GML 3.2.1 * **Ordering area:** Full Islands Set * **OS Data Hub Plan**: Public Sector Plan, Premium Plan, Energy & Infrastructure Plan {% endtab %} {% tab title="Additional Information" %} #### **Paying Royal Mail royalties as a commercial customer** Royal Mail royalties are included into the licence fee if you are already a Great Britain AddressBase product customer. Additional Royal Mail royalties will apply if you aren't an existing Great Britain customer. #### **Differences between the two AddressBase Island products** There are two AddressBase Islands products: AddressBase Plus Islands and AddressBase Premium Islands. * **AddressBase Plus Islands** contains current properties including addresses sourced from Local Authorities, Ordnance Survey and Royal Mail, all provided with a UPRN (Unique Property Reference Number), for Northern Ireland, Channel Islands and the Isle of Man. 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. * **AddressBase Premium Islands** provides the most detailed view of an address and its lifecycle for Northern Ireland, Channel Islands and the Isle of Man. It has more records than AddressBase Plus Islands as it provides all the information relating to an address or property from creation to retirement. The product contains Local Authority, Ordnance Survey and Royal Mail addresses. This includes provisional addresses (proposed planning developments), and historic information (demolished properties) where available. Ordnance Survey addresses are added to the AddressBase Premium Islands product where necessary to ensure the schema meets the core AddressBase products. #### **Royal Mail's Postcode Address File** The Islands products contain Royal Mail's Postcode Address File (PAF). This is a vital component of both Islands products. Royal Mail information will therefore be present where a match can be made between the Local Authority address and an address from Royal Mail. #### **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 %} {% endtabs %} ## How to get this product Access to this product is free for Public Sector Geospatial Agreement (PSGA) Members. Find out if you are a PSGA Member or try out a sample of AddressBase Premium Islands data by accessing the [product page on the OS website](https://www.ordnancesurvey.co.uk/products/addressbase-islands#get), which has links to all of the relevant resources. Alternatively, you can try out the full product by applying for [a Data Exploration license](https://www.ordnancesurvey.co.uk/licensing/data-exploration-licence). --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation by asking a question. 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