The RICS UK housing report is the report that the market follows. It's worth having a look at that for the most accurate figures of what is going on. The Bank of England uses it to inform its decisions.
I just noticed that you can become an RICS Affiliate which enables you to get much the same information on everything to do with the property market. It costs about �100 to start with - it's really useful.
Have a look here:
http://www.rics.org/RICSWEB/Affiliates/index.aspx