Plans to make anyone carrying out a loft or garage conversion pay more for environmental upgrades will not go ahead according to Downing Street. It was proposed in January that homeowners would be required to spend 10% of the value of their work on energy efficiency improvements. However, recently senior ministers including David Cameron are reportedly opposed to the proposals.

According to the government there are around 200,000 domestic extensions and loft and garage conversions every year.

The government also reiterated that plans for its flagship Green Deal programme were separate from the building regulations proposals and were not compulsory.