According to CPRE research the average density assumption on brownfield register sites in 2018 was 41 dwellings per hectare. This report shows why doubling that should be within the realms of possibility for all authorities across England and why it might in fact be preferable to building at low density. In fact, most developments could be planned at 100 dwellings per hectare or more.

On a related issue, also attached are the figures for each local authority in England for households without a car or van. This is shown to demonstrate that space does not need to be allocated for parking in all developments. Households which do not have access to a car (often older people, younger people or people on low incomes) maybe be better supported with high density urban developments which can support shops and services while reducing the need to travel. Though this data is from the 2011 Census, it is a useful reminder that in many parts of England, upwards of one third of households do not own a car or van and in Inner London this figure is nearer two thirds.