Thank you, Wanderdüne.
In the north, there is no window planned so far .. because there is the garage everywhere.
Oh damn, I mean east. In the living room, I removed the window facing east. Firstly, because there is only a view of a wooden fence, secondly because I might later place the TV there if I want to rearrange the furniture. A loophole higher up was once considered for light entry, but it also gets in the way when rearranging.
I have not yet looked at Koha’s second design in detail, but I will do so. The good thing is that the ground floor is now "artificially" even bigger than the upper floor, which benefits the single-story concept. At first glance, however, it is noticeable that the dining room has been placed right on the outside. I had also considered that. Simply pull the kitchen out a bit at the bottom in my design so that the dining corner moves further away from the sliding door and the cooking island. But then I’ll get even bigger again... which I actually don’t want.
Dining room and kitchen together, living room separate was also considered; I find it different but better/more multifunctional.
We like having a breakfast table in the kitchen, where stuff can stay permanently; homework could then be done at the dining table. Of course, dinner is also eaten there, etc.
What really bad points are there left in my design? The hallway upstairs is narrow and long in my design, but we like having access both to the party room and the balcony. But still, the other rooms are large.
What I took away: better to make the bedroom a bit bigger to fit a sock dresser. By definition, that can also go into a dressing room, but it looks nicer. So that’s another point I take from you all here!
@Koha: Oh, the soundproof room in front of the children’s room = a very, very good idea!!! Thanks for that. I’m also considering the idea of the utility room going around the corner into the garage.