I am not sure what it is like in other areas of the UK, but around the West Midlands and North West I am witnessing no end of new developments popping up.  Coupled with this houses are selling (admittedly the deadline on landlord stamp duty no doubt stimulating this in the fourth quarter).

With the government releasing brown sites for development and allocating a percentage of plots to affordable housing, the below would seem to highlight more than just a snag in the master plan.