Energy Targets UK
New Data reveals that just 1.6 million of the 5 million rental homes reach the energy target rating of C or above. The estimated cost per property to make these improvements is on average £7,646 meaning the total cost to the entire private rented sector sits at roughly 25.7 billion.
This came from research by the specialist lender Octane Capital.
https://www.octanecapital.co.uk/media/press-releases/two-thirds-of-rental-homes-not-energy-efficient