No specific assessment has been made, but the Department does publish a quarterly National Statistics release on planning applications, decisions, enforcement activity, minerals and waste planning decisions at England, regional and local authority levels. The latest release published on 28 March 2008 can be found on the Department's website at:
http://www.communities.gov.uk/documents/planningand building/pdf/732759.pdf
The following table shows residential dwelling starts in England since the first quarter of 2007.
Quarter Residential dwelling starts Q1 2007 43,655 Q2 2007 43,050 Q3 2007 42,229 Q4 2007 38,134 Q1 2008 33,024 Source: P2Q returns from local authorities and National House Building Council