The estate agent article you linked above references a Building Renovation Passport as an alternative but a a BRP is ultimately going to be based on an EPC. It's also an EU concept: EPB Directive...Europeans have some good ideas, hey.

Never heard of the BRP and just found out they've been a thing for a while. Just gonna go and read this. Europeans can have good ideas indeed, we should have more of them, like we used to. www.creds.ac.uk/building-ren...