Better insulation and environmentally-friendly heating systems will pass on savings to occupiers, who will spend less on energy bills.
Yet the cost of retrofitting homes to the government’s proposed standards will not be spread evenly across the country, says Localis.
The report estimates that the cost in some areas of the north and midlands, where property prices are lower, will represent up to 25 per cent of a home’s value.
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In affluent parts of London and the south east, meanwhile, retrofitting will represent 2 per cent or less of the property’s value.
This high cost risks “alienating landlords and homeowners” who may avoid making the necessary improvements for the UK to hit its net zero target by 2050, said the report.
As a result, thousands of private tenants may be left in draughty homes using fossil fuel boilers, making their energy costs higher for longer.
The report points out that households in “red wall” areas will be particularly hard hit, undermining the government’s levelling up agenda.
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The government has failed to account for these issues with insulation in their announcement of a heat pump grant, the Environmental Audit Committee said.
“As yet, there is little acknowledgment that effective use of heat pumps requires buildings to be properly insulated.
“Our Committee’s evidence highlighted that insulation costs can double the current cost of a heat pump for many of the 19 million homes that are older and have an EPC rating of less than C,” it said.
A spokesperson for Propertymark, a professional body for the property centre, said:
“When we look at property value against the estimated cost of retrofit improvements for energy efficiency, we see a stark geographical divide making the feasibility of carrying out works required unequal across the country.
“This means that those living in lower value areas will be penalised when they are unable to afford the measures needed to bring their homes in line with UK Government targets.”
The Department for Business, Energy and Industrial Strategy and the Department for Levelling up, Housing and Communities has been contacted for comment.