A recent survey by the Mortgage Advice Bureau has shown that four in five people have no understanding of green mortgages.
The terms of each individual deal differ, but typically lenders offer enhanced mortgage deals, for example lower interest rates or cashback, to qualifying homes.
Generally, this means if a property has an Energy Performance Certificate (EPC) rating of A or B.
Although the product range is currently low, more lenders are expected to enter the market in the coming years.
The government has passed legislation requiring the UK to be a net zero emitter by 2050. Since two thirds of owner-occupied homes have a current EPC rating below C, there is vast room for improvement.
Your home may be repossessed if you do not keep up repayments on your mortgage.