<p>House price data from Local Authority Districts in England and Wales from 1997 to 2007 is used to reveal areas of persistently high and low house price levels. The data is then used to reveal spatial house price growth differentials. Using measures of spatial association, it is shown that the regional ripple effect may reflect interlocked housing markets, but the timings of the diffusion are far from uniform are only partially related to distance from London.</p>