Introduction of unique property reference number

We’ve improved our XML Reach platform, to make it even quicker for you to get your quotes.

What is a Unique Property Reference Number (UPRN)?

A UPRN is a unique identifier that’s assigned to every property, or unit of land (i.e. any addressable location) in Great Britain. Local Authorities assign a UPRN to each address record and these are generally created as soon as a property is in construction. This reference number acts as a consistent identifier for that specific address throughout the lifecycle of the property – all the way from planning permission, build and demolition. The Ordnance Survey list UPRNs in their address products and we will be integrating these as a standard identifier on location within our quote tool. The benefit of this will be that your serviceability searches and quotations will be more accurate.

How will this affect my system configuration?

The UPRN is a new optional field that we’ve added to our XML Reach platform. Your system configuration won’t change.

For further information, please take a look at our latest user guide.

We can provide you with a list of the latest UPRNs (in the same way that we share TOID references with you currently) but you will need to sign a Non Disclosure Agreement for this. Please contact your Account Manager if you require this dataset.

TOIDs and UPRNs – which one shall I use?

You can continue to use TOIDs post upgrade but we encourage you to become familiar and start using UPRNs as they’re the latest references from Ordnance Survey and therefore it’s more likely that you’ll get an accurate quote first time round.

When will these changes happen?

The upgrade work took place over the weekend of the 7th and 8th January 2017.


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