It would be interesting to know what the French legal definition of "building restoration" is. If Patreon money can legally only be spent on "restoration" it is important to justify every expense against this definition. I know Historic England enforces very strict conservation principles to this effect and maintains a position of integrity and provability in all works undertaken.
"Historic England’s Conservation Principles defines restoration as returning a building to “a known earlier state, on the basis of compelling evidence, without conjecture”. A number of criteria are set out which normally make restoration acceptable."
I don't think Stephanie could convert an apartment for Gerry with Patreon money because it wouldn't be 'restoring' a space to a "known earlier state" but instead is reappropriating what appears to be an old hay loft. It was never a "studio apartment' therefore cannot be restored to one.
It is also interesting because Stephanie then would need to justify adding huge landscaped gardens under a 'restoration' plan because the chateau would never have had them.
By painting herself into a corner with this charitable foundation she may find she regrets not having the freedom to spend as she chooses. Fortuny fabrics may have to come out of the YouTube/B&B account from now on.
Very interesting to consider.