questionText: To ask the Secretary of State for Science, Innovation and Technology, with reference to the answer of 22 April 2026 to Question 124769 on Housing: Databases, what the difference is between Unique Address Reference Numbers and Unique Property Reference Numbers for residential dwellings.
answerText: Unique Address Reference Numbers (UARNs) are HMRC’s primary identifier for rateable domestic (and non-domestic) properties in England and Wales. The UPRN is a permanent, up to 12-digit numeric identifier assigned to features in the landscape of Great Brit...
heading: Housing: Databases