Building’s 99% Campaign gained further ground in Westminster this week after receiving the backing of shadow environment minister Greg Barker.

Barker gave his full support to the campaign, which highlights the need to improve energy efficiency in existing buildings.

He said the building industry ought to be “at the forefront of the changes we need to make as a nation to use energy more responsibly and efficiently”.

The campaign has received an overwhelming response.

John Spanswick, chair of contractor Bovis Lend Lease and of the Major Contractors Group, said: “I totally agree that dealing with existing stock is an important priority.”