A House price index (HPI) m

House Price Indices (HPIs) have been produced in the UK since around 1973, initially by mortgage-providers, and more recently by government bodies. More recently, they have come from property market websites.
The dominant methodologies are
Hedonic regression (also known as the characteristic based) Method and standardisation???
Standardisation

Repeat Sales Regression.
Governmental house price indices The Land Registry House Price Index is calculated on behalf of HM Land Registry by Calnea Analytics. It uses the Land Registry’s own data, which consists of the transaction records of all residential property sales in England and Wales. It uses Repeat Sales Regression. The number of monthly transactions is approximately 100,000 per month. The index excludes sales from repossessions and auctions as these "do not represent full market price". [1]

The DCLG House Price Index [2] for the Department of Communities and Local Government uses the mix-adjusted method, which is based on weighted averages. The data used in this HPI is mortgage completion data supplied by a few large lenders.
A House Price Index used to be produced by the Department for the Environment.
[edit] Private sector house price indicesThe Nationwide House Price Index and Halifax House Price Index use Hedonic regression (also known as the characteristics based method) using their own datasets compiled from their mortgage lending. These indices have a longer time-series than the Governmental HPIs.
easurer the price of residential housing

Current UK indices Index Calculated by Source data Observations (approx) Quality Adjustment Method Local Indices Frequency Price Observations
HM Land Registry Calnea Analytics HM Land Registry 100k RSR Yes Monthly Actual price paid
DCLG DCLG Lender data 45k SMA Regional Only Monthly Mortgage completions
Halifax Halifax Loan approvals 12k HR Regional Only Monthly Price agreed at time of loan approval
Nationwide Nationwide Loan approvals 12k HR Regional Only Monthly Price agreed at time of loan approval
FindaProperty.com Calnea Analytics Rental prices Undisclosed HR Regional Only Monthly Rental prices
Home.co.uk Calnea Analytics Asking prices online 800k SMA Regional Only Monthly Asking price
Right move Right move Asking prices online Undisclosed SMA Regional Only Monthly Asking price
Financial Times Acidimetric Land Registry 100k SMA Yes Monthly Actual price paid