Purchase opportunity for an old building from 1953, assistance with evaluation

Ok… I don’t have much hope either. The "problem" is that we then have to take measurements of the house because the people from the [Energieausweis] need that. It’s associated with effort and the question of how to do it since the house doesn’t belong to us yet.

Yes, that is always a lot of extra work and effort. But in the end, it doesn’t help. You’d better have the documents newly created if you’re going to look everywhere and get access anyway due to the renovation.