HM Land Registry has begun publishing Unique Property Reference Numbers (UPRNs) and INSPIRE IDs alongside its monthly Price Paid Data, a move that could improve the accuracy of property matching and transaction histories for estate agents, portals and lenders.
From 28 August, the identifiers are available in separate lookup tables accompanying the dataset, which records residential property transactions across England and Wales. The data is routinely used by property businesses for market analysis and research.
Addressing data accuracy challenges
The addition of UPRNs aims to resolve longstanding issues with property identification. Property databases typically rely on addresses, but variations in formatting, address changes and duplicate records can make it difficult to establish whether different datasets refer to the same property.
UPRNs provide individual properties with a consistent identifier, allowing estate agents and portals to connect historic transaction prices to specific homes more reliably. The change could also improve the accuracy of property histories shown to buyers and sellers.
INSPIRE IDs serve a different function by identifying spatial land parcels. Developers and investors could use them to connect transaction prices with land boundaries, supporting site analysis and planning decisions. Lenders may also incorporate the identifiers into property matching during valuations and mortgage assessments.
Industry response
Lynne Nicholson, deputy director for Data at HM Land Registry, said the organisation has a strategic plan to unlock the value of its data. “In response to customer demand, we are providing UPRNs and INSPIRE IDs through a series of lookup tables, beginning with our Price Paid dataset,” she said.
The Land Registry confirmed it will add similar lookup tables to its UK Companies data and Overseas Companies data later this financial year, as part of efforts to support a more digitally connected property market.
Nick Chapallaz, managing director at GeoPlace, which manages the national address and street databases for England and Wales, said the UPRN provides certainty of reference across the property sector. “That shared reference point enables property data from different sources to be linked, analysed and mapped, opening up new opportunities for insight across the property market,” he said.
Market implications
For estate agents, the change represents a data enhancement rather than a regulatory requirement. Agencies, portals and proptech providers using Land Registry data can incorporate the identifiers into their systems from 28 August.
The move comes as the property sector continues to navigate challenges including tax concerns for landlords and ongoing debate about housing supply shortages. The improved data accuracy could support more detailed market analysis when agents combine Price Paid Data with other property and location datasets, including analysis at property, street and neighbourhood level.
The identifiers are maintained through local authority address custodians and GeoPlace, ensuring consistency regardless of how an address appears in different systems.
