Information on development on previously-developed or brownfield land is taken from the Land Use Change Statistics, which is only available for England.
In the period 2003-06:
(a) 58 per cent. of the land changing to a developed use in England was previously-developed;
(b) 60 per cent. of the land changing to a developed use in the North East was previously-developed;
(c) 65 per cent. of the land changing to a developed use in the Tees Valley was previously-developed;
(d) 60 per cent. of the land changing to a developed use in the Middlesbrough, South and East Cleveland constituency was previously-developed.
Tees Valley is defined as the Hartlepool, Middlesbrough, Redcar and Cleveland, Stockton-on-Tees and Darlington local authorities.
“Brown field development” has been interpreted as all development on previously-developed land, not just residential development. Information on residential development can be found on the CLG website at:
http://www.communities.gov.uk/planningandbuilding/planningbuilding/planningstatistics/livetables/landusechange/