If you want the room layout like that, then have the BU draw it up properly. He should also eliminate the little planning errors at the same time: For example, leave 70cm of wall behind doors and next to windows for furnishing. This also applies to the wardrobe and kitchen, as well as the window front. The beams and lintels have to rest somewhere. Plaster surfaces should also be taken into account. 163 quickly becomes 155.
For windows, the minimum is 1/8 of the room’s square meters. The bigger the window front, the nicer the view of the garden. But it’s not always nice weather, and you don’t want to see a piece of furniture covered with a tarp on the terrace; you also want some space to place furniture like a TV with a TV stand somewhere. That’s why I wouldn’t exaggerate with the windows. A wall panel also provides protection. You hardly have any space for furniture!
In the upstairs floor, the windows are also not feasible as they appear. Parapets are required, whether with wall or window surfaces. Personally, I would avoid floor-to-ceiling windows in private rooms as well as the bathroom. If everyone can look in, even just seemingly, you don’t feel comfortable. I would plan kitchens from wall to wall; I doubt a door next to built-in tall cabinets looks good. Don’t place beds wall-to-wall, don’t let a child sleep on the bedroom wall. Without a window, the corridor between the children’s bathroom and the stairs doesn’t make sense.
What is the basement going to be used for? The house with the basement is too big relative to the budget. The house will be too expensive with the thoughtless large rooms!