The house price index includes data from:
Sale prices are used to calculate the estimated change in property prices for a given period.
The house price index uses a data model to estimate property prices changes.
Data is also grouped into a number of categories to provide a more in-depth breakdown of price changes across the country:
The house price index is maintained by the Office for National Statistics and provides estimated property price changes.
Property prices changes are calculated for different areas of the country and are also grouped into additional categories, for example regions and buyer status.
The house price index is updated each month, however for areas of the country with a low volume of sales, it may be worth looking at longer term trends instead.
Historic house price index data is also available as far back as 1995.
The house price index provides accurate historical data for property sales, but there can be anomalies which can affect the statistics.
Areas of the country with lower sales volume can be skewed and there can be delay in reporting the sale of a property, meaning a property sale might not be recorded until a number of months after completion.
There are a number of transactions that are excluded from the house price index, for example: