Hello,
I have a suggestion for the attic:
Consider whether you really want to put a wall between the dressing room and the bedroom.
We solved it in our place by leaving out that wall and instead placing a floor-to-ceiling built-in wardrobe between the two rooms.
Whether this wardrobe is used only from one side, completely from both sides, or partially from the dressing room and partially from the bedroom can be decided individually.
In any case, this solution gains you the space that the wall would have otherwise occupied.
On the ground floor, I would reconsider the door from the storage room to the garage.
In my opinion, the door unnecessarily takes up space both in the garage and in the storage room. Also, you have to consider the cost of a suitably insulated door. For me, the possibility to carry groceries directly from the garage to the storage room is not worth it.
Regards,
Dirk