If the BCAs are going to explore the implementation of the Nationally Described Space Standard then this will need to be justified in line with the PPG, which requires account to be taken of the following:

* need - evidence should be provided on the size and type of dwellings currently being built in the area, to ensure the impacts of adopting space standards can be properly assessed, for example, to consider any potential impact on meeting demand for starter homes.
* viability - the impact of adopting the space standard should be considered as part of a plan's viability assessment with account taken of the impact of potentially larger dwellings on land supply. Local planning authorities will also need to consider impacts on affordability where a space standard is to be adopted.
* timing - there may need to be a reasonable transitional period following adoption of a new policy on space standards to enable developers to factor the cost of space standards into future land acquisitions

It is likely that there will be some significant implications on the viability of developments if the NDSS is progressed. Where viability is not effective, this is likely to be where the housing market is strongest and where it is more difficult for younger people to access the housing market. Increasing house sizes of the smallest units could price exclude those with smaller budgets. So there are potential negative effects across the Black Country to be considered. With viability likely to be a factor on a large number of sites, the resultant loss/reduction of affordable housing provision and other s.106 obligations, will need to be balanced against securing the NDSS.