@Stella - Because we’re a day’s drive away the best we can do is the day before. Perhaps if we call today and tell them what kind of info we need, that gives enough time? I might be asking too much of French organisation though… 
@Elizabeth_Cox - The DDT was done in autumn 2021 so that is current enough. The DPE was done in 2019, but as I read on this thread, it is still valid. Maybe a more current one would be nice but I am sure they’d ask us to pay for it. I doubt it would change dramatically since the house is “newer”.