If not are you planning to do anything about it in light of proposed new legislation?
Currently, domestic private rental properties must meet a minimum level of energy efficiency which is an EPC rating of E. However, beginning 2025, all newly rented properties will be required to have a certification rating of C or above.
I can't help but think many older properties can't be brought up to level C, at least without huge amounts of money being spent on them. I wonder if this will mean many are put on the market.