Housebuilders and property developers have benefited by billions of pounds from delays to low-carbon building regulations in the past eight years of Tory rule, while the sector became one of the biggest sources of donations to the Conservative party.
The delays mean that homeowners and taxpayers will have to pay tens of billions of pounds to bring newly built homes up to low-carbon standards, and have resulted in years of unnecessarily high greenhouse gas emissions, and higher energy bills for residents.