BTL properties rated below EPC band C to become ‘unmortgageable’

In potential blow to rental market, finances are drying up fast for rental homes that will not meet new energy efficiency criteria.

mortgage denied

Buy-to-let lenders are beginning to restrict access to some of the best mortgage deals for properties with energy efficiency ratings below EPC band C.

Research by property data specialist Cotality reveals, however, that some lenders could go even further and start declining all five-year fixed-rate BTL mortgages on properties rated below band C.

It’s raising fears that thousands of rental homes could become ‘unmortgageable’ before the new energy efficiency requirements come into play in 2028 (new tenancies) and 2030 (existing).

In contrast, Cotality’s Temperature Check 2025 report found that competition between lenders was intensifying for properties with EPC band A, B and C properties

Two-tier market

According to the company’s  COO, Mark Blackwell, it is creating a two-tier market where higher-rated properties attract competitive finance while sub-C properties face severely limited options, forcing many landlords to sell up.

Currently, there are 2.5 million rental homes rated between  D and G, so the number of affected properties could be substantial.

In an interview with the FT, Blackwell explained the industry’s changing approach: “There is a clear desire in lenders to act to mitigate the impact of climate change, starting with the climate risk sitting on their own loan books.

Meeting the challenge of net zero is not straightforward,”

“There’s an imminent regulatory deadline that requires them to do it, but during our research, we found that without more robust data inputs and better access to model scenarios, many aren’t as far on as they want to be.

“There are ways to address this, and our research highlighted that lenders are taking a wide range of approaches.

“What was common to all, though, is that meeting the challenge of net zero is not straightforward, and it will require the co-operation of all parts of the market to achieve it in such a short time.”


One Comment

  1. This now becoming bonkers. Around 18/19% of the housing stock is rented making it compulsory to have a C rated EPC will dramatically reduce the stock in any event in my area but this is an added nail in the coffin. Do the political types not realise they need a buoyant rental market/stock to facilitate people who move round for jobs as well as for those who cannot afford or do not wish to buy.
    God help the tenants who have no homes because Westminster wont they will continue to act like children shouting across the house blaming each other.
    The other point of course being that the privately owned properties do not need to meet the C grade so how is that going to save the planet. I am all in favour of improving property but I have just had an estimate of £39,000 to reach a C on one property the landlord is 71 he will simply not live long enough to see a return even if he puts the rent up £200 pcm so he is selling.
    Its worrying.

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