Recommendation 2

There is a wide variation in the costs for bringing all homes in the UK up to an EPC grade C. We have heard of costs averaging £18,000 to retrofit a property, before addition of a heat pump. Given that there are around 19 million properties in the UK in need of some energy efficiency upgrade, we consider that the overall cost to meet net zero from domestic buildings could be far more costly than the Government’s estimate of between £35 billion and £65 billion.