The point I was making above is that we do need to avoid this situation happening again in future, and once the market has settled to a more realistic level, then we should maybe look to learn from the mistakes that were made in the last 10-15 years. And imo, one of the biggest mistakes was to artificially inflate the price of houses, with the excessive availability of cheap credit.
I'm interested as to why you say that? I'm not aware of any specific problem in the UK housing market, indeed my home as an investment has performed better than my pension (only down 20% in 2008 as opposed to down 25%

As far as I'm aware the problem is mainly in the US sub-prime housing market, which banks were happy to bet the farm on due to the higher risk premium leading to higher bonuses, forgetting that in the USA, unlike here, it's possible to walk away from your mortgage leaving the bank to sort out the mess. This imo is the crux of the problem, and this is what regulation needs to sort out - not the UK housing market especially.