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Next publication of UK HPI
The October 2022 UK HPI will be published at 9.30am on Wednesday 14 December 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, some methodology changes have been made. The processing of new build properties has been more affected than the processing of “old build” properties. So, to address this, we have had to pool new build transactions for certain months:
February 2022 includes new build transactions from January 2022 and February 2022
March 2022 includes new build transactions from February 2022 and March 2022
April 2022 includes new build transactions from March 2022 and April 2022
May 2022 includes new build transactions from April 2022 and May 2022
June 2022 includes new build transactions from May 2022 and June 2022
July 2022 includes new build transactions from June 2022 and July 2022
August 2022 includes new build transactions from July 2022 and August 2022
September 2022 has not been affected as new builds are never included in the model for the first estimate because of the nature of their processing
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 new build properties can be found in the Quality and methodology guidance.