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Next publication of UK HPI
The December 2021 UK HPI will be published at 9.30am on Wednesday 16 February 2022. 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, we have made some methodology changes. 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:
April 2021 – includes new build transactions from March and April 2021 for England and Wales
May 2021 – includes new build transactions from April and May 2021
June 2021 – includes new build transactions from May and June 2021
July 2021 – includes new build transactions from June and July 2021 and August 2021 (City of London transactions)
August 2021 – includes new build transactions from July and August 2021
September 2021 – includes new build transactions from August and September 2021
October 2021 – includes new build transactions from September and October 2021
Because of the nature of processing new builds, these are never included in the model for the first estimate, so November 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.