§ Mr. Hilary BennTo ask the Secretary of State for the Environment, Transport and the Regions what average saving in energy consumption he estimates would be made if new houses were constructed using best available techniques for energy conservation in place of the requirements of current building regulations. [108019]
§ Ms Beverley HughesNew dwellings might have an annual energy consumption for space heating and hot water around half that of dwellings built in compliance with current building regulations if built using best available techniques that take account of factors such as capital and running costs, buildability and environmental costs.