“Existing infrastructures rely on carbon-heavy energy sources such as coal and gas and have leaky, inefficient buildings, which haven’t benefited from the latest technologies and materials,” Sean Lockie, head of sustainability, Faithful & Gould, 1 June.

“We’re very excited. The green movement is going to usher in a whole new era for architecture,” Greg Mella, architect, SmithGroup and member, American Institute of Architects committee on the environment, 10 May.

“In terms of supply, we might see a temporary uplift in 2016 because a lot of people will try to deliver schemes before the deadline [for level 6, Code for Sustainable Homes]. But after that landowners will suddenly be forced to deal with lower prices, and they will not like that. They will take land off the market and that will affect supply in the medium term,” Liam Bailey, head of residential research , Knight Frank, 10 June.

“People need to know what will give them the best cost returns, how they do it and how they add value to the home,” Peter Bonfield, chief executive, Building Research Establishment, on BRE study due out later in 2010, 10 June.