Floor plan of a 1.5-story house with a captain's gable on nearly 200m²

the individual sizes of the living spaces as a list on paper initially look quite plausible

That just occurred to me again, at least regarding the "normal" living spaces. Okay, the 6.x m² office is unnecessary, and the circulation area is also too generous, but in general it seems to be a problem of the poor layout of the rooms. If that is not a task for a trained architect, then I don't know either.

Great, thanks for the explanations, that definitely helps a lot. I'll take these things with me, now I have to sleep and can't answer everything.

Top, thanks for the explanations, that definitely helps a lot more. I'll take those things with me, now I have to sleep and can't answer everything

You don't have to reply either. It's enough if you internalize and understand what was mentioned. Only when you understand are you ready to change something - for the better.

130 cm knee wall and captain's gable do not sound like single-story to me. I would personally check based on experience. The definition of single-story varies by federal state. So e.g. in SH it is different from Hamburg and probably different again in Lower Saxony. Money does not seem to be an issue, but 200m2 plus basement is already large. Do you really need that?

200m2 plus basement is already big. Do you really need that?

I would say: it depends on the number of boxes around the kitchen table *LOL*

We have no more boxes, they have all been donated