Commercial Mortgage and Development Finance Specialist
 
 
 

Halifax House Price Index

The Halifax House Price Index is the UK's longest running monthly house price series with data covering the whole country going back to January 1983. The Index is based on the largest monthly sample of mortgage data, typically covering around 15,000 house purchases per month, and covers the whole calendar month.

From this data, a "standardised" house price is calculated and property price movements on a like-for-like basis (including seasonal adjustments) are analysed over time. Properties over £1 million are included (since December 2002) and the index is seasonally adjusted with the seasonal factors updated monthly. The indices are based on the detailed records of the prices, physical characteristics and the regional location of all the houses on which the organisation has made a mortgage offer in each time period.

 
       
       
       
 

Graph of House price vs Date

     
  July 2008 - All houses / All buyers / Seasonally Adjusted - source Halifax    
       
 
FusionCharts.
 
     
     
     
  The methodology is applied separately to produce monthly and quarterly standardised indices for different categories of house (all houses, new houses and existing houses) and buyer (first-time buyers and former owner-occupiers). The U.K. national all houses, all buyers monthly index is also available as a seasonally adjusted series. Regional index numbers are also created (quarterly) for all, new and existing houses and for houses bought by first-time buyers and former owner-occupiers. The regional all houses, all buyers quarterly indices can also be provided as a seasonally adjusted series.      
     
     
 

Graph of Monthly % change vs Date

 
  July 2008 - All houses / All buyers / Seasonally Adjusted - source Halifax  
     
 
FusionCharts.
 
         
         
 

The database used to construct the current indices offers a large number of house-purchase transactions that have been financed by the Halifax. As a consequence, the analytical procedures used in developing the Index are both reliable and robust.

Not all house purchases financed by the Halifax are included in the database. There are some properties that are excluded from the subsequent analyses. For example, the vast majority of council house sales which may have been sold at below market price. After editing, the database covers around 13,500 house purchase transactions per month.

It should be noted that the data refer to mortgage transactions at the time they were approved rather than completed. This has the disadvantage of covering some cases that never proceed to completion. However, it has the advantage that the price information is more up-to-date as an indicator of price movements and is on a more consistent time-base than completions data given the variable time lags between approval and completion.