Wow, thanks again for the idea. The size and thickness are probably correct, although women can certainly judge that better.
However, we want to avoid an I-shaped kitchen/living/dining area. We really like it here if it could be implemented as an L-shape. We had already looked at several show homes, and the L-shape was simply nicer for us. That's why a rectangle with much longer dimensions on one side is probably not good for us :-(
Unfortunately, I don't understand (or can hardly imagine) why the upper floor of kaho674's design, from 9.5 to 10.2, is more coherent than in my design in the initial thread. This is not meant as criticism, but what is different there? Ok, the dressing room is separately accessible. That would also be possible in the other upper floor. Otherwise, I don't see any other major advantages. Or is a larger hallway upstairs also beneficial?