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Rightmove: 'Half of UK homes have poor EPC ratings'

At least 18m homes have an energy performance certificate (EPC) rating of D or below, pushing up gas and electricity bills for homeowners and renters, while potentially putting off buyers.

Rightmove’s Energy Bills Tracker analysed the EPC rating of all three bedroom houses for sale on the portal in May 2024, combined with the latest gov.uk postcode level energy statistics, factoring in the latest energy price cap.

It found that 18m homes have a rating of an EPC D or below. This takes into account both homes that have an EPC and those that have never had one because they haven’t been sold or rented out since EPCs were introduced. It equates to more than half (55%) of all UK housing stock.  


The analysis of government data shows that the average energy bill of a three-bedroom house with an EPC rating of F is £4,431 per year, compared with £1,669 for the same sized house with an EPC rating of C – a difference of £2,762. 

A homeowner with the lowest rating of G could be paying more than £5,000 on average, according to the research.

Rightmove is urging whichever party wins the election to prioritise making green home incentives available to as many homes as possible.

Tim Bannister, Rightmove’s property expert, said: “While it’s a start to see some green support proposed in the party manifestos, there’s a big job to be done to address the widescale issue that at least 18m UK homes need to be improved. 

“Many home-owners and landlords need urgent access to schemes that enable them to make these improvements, which could help with huge savings on energy bills. Each home requires different improvements and the upfront costs are a huge barrier to change. Without more help, many home-owners and tenants will continue to live in high-carbon emitting homes with high energy costs.”

EPC Rating

Average annual energy bill















Commenting on the report, Nathan Emerson, chief executive of Propertymark, said: “Propertymark has long supported initiatives and practical measures to help enhance energy efficiency across the UK. 

"We would be keen to see any incoming government construct a wide-ranging package of support to assist with upgrades at the first opportunity. It’s vital there is a diverse approach of funding, grants, and targeted schemes based on age, condition, and size and that there is robust infrastructure in place to deliver on such ambitions.”

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    Ok, have done the LED'S, have done the insulation. But as i understand it, you need to cover your roof in solar panels and have the boiler changed to a heat pump to get the A,B, or C high reading. So need to re-mortgage first!!! Am also hearing from plumbers that heat pumps are good for max 22 degrees only. But am willing to be persuaded if anyone here has more knowledge.

    Ian Mumford

    With the current EPC algorithm a heat pump gives a worse rating than gas because it is based on the cost of fuel.

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    I have been quoted £18k for solar panels, £10k for a heat pump and £7k for an EV charger. (It’s an old cottage with its own unique challenges). I would never see a ROI. Ra

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    I'm a chartered surveyor and both a commercial and domestic landlord. All of the EPCs that I've commissioned over the last 15 years (and it's been a lot) have been accurate and well produced. Before doing a refurb of a house or flat I get a DRAFT predicted EPC prepared by a local energy assessor. I aim to get BOTH the 'Running Cost' EPC to Grade C and also the 'CO2 Pollution' EPC to Grade C. A lot of people do not realise that domestic EPCs have two separate Grades on the certificate - one measuring Running Cost and one measuring CO2 Pollution.

    It doesn't take much to put 2 x layers of new Rockwool in a home's loft (one at right angles to the other), get a local plasterer to fit a sheet of 5cm thick Celotex on the inside of external facing walls and cash-in the generous £7,500 Government grant (yes FREE MONEY) to install an efficient high-temperature electric heat pump from Octopus Energy. I've had an Octopus Cosy 6 heat pump installed in a rental house I own in Bracknell. The old gas boiler came out and the new heat pump went in. It powers up the existing radiators and its working extremely well.
    Oh and if you want to put a stop to running condensation on windows, damp and mould, get a handyman to install a Nuaire PIV ventilation unit. Clothes then actually dry when they come out of the washing machine and towels dry after a bath.
    It's common sense.


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