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AddressBase Islands

AddressBase® Islands delivers the detail for Northern Ireland, Isle of Man and the Channel Islands which you find in AddressBase Plus and AddressBase Premium.


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's regularly updated, your records will be more reliable, too.

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. 

Addressing beyond Great Britain

Addressing beyond 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.

Straightforward licensing

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. 

Available in two versions

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.

Simplified data management

Simplified data management

Since AddressBase Islands brings together multiple data sources and is released alongside GB AddressBase products, your back office team saves time by managing just one data set each time instead of four.

How to get this product

Technical specification

Key FeaturesWhat this product offers

Comma separated Value (CSV) and GML 3.2.1

Data structure



Address elements and coordinates for each address


1:1250 to 1:10 000

Update frequency

Six-weekly refresh




Northern Ireland, Channel Islands and Isle of Man