New-build homeowners and renters are expected to save £3,000 on gas and electricity from April, compared with those living in more traditional homes, according to the Home Builders Federation.
Around 85% of new build houses and flats have an Energy Performance Certificate rating of A or B, compared with just 4% of existing dwellings.
More than half of homebuyers are now factoring running costs into their purchasing decision.
The HBF is calling on lenders to introduce green mortgages that take into account the energy efficient properties of new homes.
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