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Next publication of UK HPI
The May 2021 UK HPI will be published at 9.30am on Wednesday 14 July 2021. See the calendar of release dates for more information.
Northern Ireland sales volumes
We’ve changed the way we publish the Northern Ireland sales volumes and corrected the way we include them in the UK figures. We’ve produced a monthly estimate by dividing the total sales volumes for the quarter in Northern Ireland by 3.
We previously included the quarterly Northern Ireland data in the monthly UK sales volumes data, which resulted in higher than expected sales figures.
Methodology change for new build property
Because of the impact of the coronavirus (COVID-19) pandemic on both the number and supply of housing transactions, some methodology changes have been made. The processing of new build properties has been more affected than the processing of “old build” properties. To address this, we have had to pool new build transactions for:
January 2021 to include new build transactions from December 2020 and January 2021 for England and Wales
February 2021 to include new build transactions from December 2020, January 2021, and February 2021
March 2021 to include new build transactions from January, February, and March 2021
Due to the nature of processing new builds, these are never included in the model for the first estimate, so April 2021 has not been affected.
These changes might lead to larger revisions to published estimates than usual as we reduce the reliance on pooling. Further information on how we usually process the new build properties can be found in the Quality and Methodology documentation.
See data downloads to download the data in CSV format.