That’s actually not true. I also don’t see a dead corner there.
According to your plan, the wall next to the window is 66.5 cm wide; with the interior wall construction, it will be less, so if a cabinet with 60 cm depth is placed next to the sink instead of a bidet, it could get tight. It’s not currently planned that way, but bathrooms are often remodeled later in life, sometimes even during the shell construction phase. I believe kbt09’s intention was that there should be enough space for that.
The dead corner looked like in some plans there was hardly any space to walk between the sink and the tub into the corner. It also depends on how spacious the tub is supposed to be.
Left next to the door Shoes go into a compartment under the built-in staircase
That’s true but I don’t see another possibility
Spontaneously, I would move the front door to the left in the entrance area. Make the guest WC smaller, without a shower it doesn’t necessarily need that much space. Maybe even a small cabinet solution would fit into the niche between the front door and the guest WC, if you use a narrow 77 cm door for the guest WC?
Daily outerwear for jackets and guests could then go on the right next to the front door.
The window will be made as large as possible.
Above the sink, I would prefer a two-part window: the lower part fixed, just to let in light and be able to look out, the upper part for opening, without having faucets and dish stuff in the way.
You said exactly right. Should I turn on the light in the bedroom every time when my girlfriend is still sleeping if I forgot something? That is exactly the idea of a single room.
I think a separate room is good. Personally, I wouldn’t want to completely do without daylight in the dressing room. Otherwise, the black pants that you just picked out for the funeral of neighbor Max Mustermann would turn out blue in front of the door. You go there daily and choose clothes, among other things, by color or put things away. Maybe the wardrobe on the exterior wall not room-high and instead have a transom window?
Where else would you wash your hands after gardening, working on the car, or whatever?
The point is that the sink doesn’t get in your way on walking paths. One could also consider moving it to the back wall of the garage, which of course incurs higher costs for piping routes.