Over the past few months I have been exploring what actually drives UK House Prices. In developing some mechanical non-emotional datasets I’ve come to the conclusion that the driver is actually UK House Affordability. That said while Affordability drives the housing market I personally only want to buy a house when it is at a sensible Valuation. Therefore from here on in I intend to monthly monitor two key UK House metrics:
Before we look at the metrics let’s first look at the key pieces of data I am using to assess both Value and Affordability:
- I will monitor UK House Affordability which will hopefully give me some insight into whether house prices will be increasing or decreasing in the foreseeable future.
- As I remain in rented accommodation and intend to buy when prices are fairly valued I will also monitor UK House Value. This will hopefully give me a sensible buy point to ensure I don’t lose money on the purchase.
Before we look at the metrics let’s first look at the key pieces of data I am using to assess both Value and Affordability:
- UK Nominal House Prices. I have consistently been using the Nationwide Historical House Price dataset for a lot of previous analysis and so will stick with it. August 2012 house prices were reported as £164,729. Month on month that is an increase of £339 (0.21%). Year on year sees a decrease of £1,185 (-0.72%).
- UK Real House Prices. If we account for the devaluation of the £ through inflation (the Retail Prices Index) we see a very different story. Month on month that nominal increase turns into a decrease of £263 (-0.16%) and year on year that decrease grows to a larger £6,031 (-3.66%). In real terms prices are now back to those seen in March 2003.
- UK Nominal Earnings. I choose to use the Office for National Statistics (ONS) Average Weekly Earnings KAB9 dataset which is the seasonally adjusted average weekly earnings of both the public and private sector including bonuses. July 2012 see earnings at £471. Month on month that is an increase of exactly £0. Year on year the picture is not much better with an increase of £6 (1.27%). With inflation (the Retail Prices Index) running at 3.2% over the same yearly period purchasing power of those that work continues to be eroded.
- UK Mortgage Rates. The proxy I use to monitor mortgage interest rates is the Bank of England dataset IUMTLMV which is the monthly interest rate of UK resident banks and building societies sterling Standard Variable Rate (SVR) mortgage to households (not seasonally adjusted). August 2012 saw this reach 4.26% which month on month is an increase of 0.02% and year on year is an increase of 0.16%. So while the Bank of England holds the Bank Rate at 0.5% out in the real world we are seeing mortgages start to cost more, even if it is happening very slowly.