Right to buy is probably a reason for average house prices being seen as so low at that time, a lot of the sales were ex council houses at a discount, so there was plenty of supply with far less demand, which would have had a knock-on affect to private sales.
The main problem these days are amateur landlords buying up all the stock that would previously gone to first and second-time buyers, if we can offer an incentive for some of those to sell up we could reduce the problem.