The UK House Price Index (UK HPI) captures changes in the value of residential properties.
The UK HPI uses sales data collected on residential housing transactions, whether for cash or with a mortgage.
For more information, please read the Land Registry's documentation: https://www.gov.uk/government/publications/about-the-uk-house-price-index/about-the-uk-house-price-index
From February 2025, the UK House Price Index has been re-referenced from January 2015 to January 2023. Historical data from 1995 onwards has also been revised to align with this update. These changes reflect market shifts, including an increase in sales of smaller properties and fewer sales in higher-value areas like London. For more details, see the UK HPI publication for more information - https://www.gov.uk/government/collections/uk-house-price-index-reports