As the housing White Paper noted10, external commentators suggest that England needs net additions in the region of 225,000 to 275,000 per year.
to create the financial incentives necessary to deliver 300,000 net additional homes a year on average by the mid-2020s.
Oxfordshire saw a reduction in its housing targets in the OAN Method To 85,375 over 25 years (equivalent). In the budget the stretch target 2016-2031 is 100,00k per annum – though this appears way too low as this does not appear to include any overspill from land constrained areas such as London. My own MOAN method produces – before employment growth – a target of around 84,000 – and before London overspill (including Oxford Overspill backlog). Even the NIC method produced by Savills underestimates as it calculates the corridor taking the same share nationally as other areas of London overspill, and a pre London Plan revision overspill (target now increased by 50%) at that (even though Kent- Sussex and East Anglia have far lower areas of unconstrained land within commuting distance of London) .
As for the Corridor the NIC state in the Oxford-MK-Cambs Final Report Page 26:
there is good reason to believe that the methodology used in undertaking assessments of local housing need can be conservative and can mask high levels of unmet need.22 Although local authorities are not consistent in their approach to calculating need, many use trend based household projections\which are based on recent migration trends. In many cases historic migration has been suppressed by low housing supply, leading to underestimates of migration in areas with high levels of demand and
growing housing needs. This is a national issue, but of particular relevance to the study area given high levels of demand for housing.
The Corridor Budget Announcement and ‘Planning for Homes in the Right Places’ the latter designed for an age without Strategic Planning, the former the first step in a new Age with it, have become massively out of step. The Governments spreadsheet is now an embarrassment. Even the NIC corridor target contains major technical errors (from teh Svills report which informed it) and is over a year out of date reflecting matters such as 17 year old census data a d p[re London Plan review .
Expect DCLG to quietly drop it and develop a new method in the new Year.