This statistical release presents a record of all previously developed land and buildings in England that may be available for development, whether vacant, derelict, or still in productive use. Statistical releases for national and regional trends in previously developed land are compiled from information on individual sites supplied by local authorities across England.
Key points from the release are:
- in 2010 local authorities identified an estimated 68,910 hectares of previously developed land in England, up 11% from 61,920 hectares in 2009
- an estimated 37,940 ha of previously developed land were vacant or derelict, 55% of the total
The information is for the most recent year when a return was received from the local authority. The year is shown on the data and the information is for 31 March in that year. Potential housing numbers are taken from actual figures supplied by the local authorities rather than applying a standard dwellings per hectare value. Where local authorities are not able to provide full site level data they are asked to estimate the percentage of the total area of each land type that is covered by their return of individual sites. These percentages are used to provide the gross national and regional estimates.
Being on the dataset does not necessarily mean that a site is available for development. The data provided should be treated with caution. No indication of potential constraints to development is factored into the figures; for example flood risk and contamination could rule out certain types of development such as housing or employment floor space. Further viability considerations such as location and local market conditions are also important in interpreting the data.