This map presents the energy efficiency of the new buildings in England compared with the existing housing stocks. It is calculated by the EPC score difference between the average level of new builds and the average level of existing properties at local authority level.
Unfortunately, it seems that the UK construction sector is NOT building superior homes compared to the existing housing stock, which makes it even harder to be optimistic about the future of energy efficiency in the UK housing stock.
At national level, the average of the difference in average score across region is -1.10, the median of the difference in average score is -2.89.