Floor plan of a flat-roof house on a slope

Why do you want to know that? It's completely irrelevant to the question.

Well, usually you don’t build a house just for fun. That means it has to fit the living situation and be adapted to it. So if someone moves into the house, who for example works night shifts, you plan differently than if a happy retired couple wants to realize their dream once again.

And there are people who are in a relationship but not married who still build a house together. And if he or she (depending) has the sole money and/or needs to pay it off, where exactly is the problem that he or she has the final say if there are different opinions regarding the house construction?

Hmm, if she then gives birth to the children all alone, is she then also allowed to raise and keep them alone according to her ideas? Don’t get me wrong, do as you like. There are just different ideas about partnerships.

That the better half is not allowed to help design is not stated anywhere here, right?

But it also doesn’t say what the better half thinks about the design.
I’ll put it bluntly: if you plan alone and go through with it, go ahead. Why not?! But if I wanted someone, whoever it may be, to move in sooner or later, I might plan a bit more amicably.

Well, you usually don’t build a house just for fun. That means it has to correspond to the life situation and be adapted to it. So if someone moves into the house who, for example, works night shifts, you plan differently than if a happy retired couple wants to realize their dream once again.

That was never claimed here. And the OP has presented their situation and the framework conditions. Based on those, it should be possible to discuss the floor plan constructively.

If you have a problem with their approach or their framework conditions, that may be so, but it doesn’t help the OP with their question, don’t you think?

And for the record: my framework conditions are completely different. My wife and I are building together, and each brings their ideas and visions, and when there are controversies, we find a way that works for both. But just because it is like that for me does not mean I have to demand that the OP do it the same way...

Mh, if she gives birth to the children all by herself, is she then allowed to raise and keep them alone according to her own ideas?

Mixing apples and oranges usually results in fruit salad. So can we please stay on topic? It was about the floor plan, the OP’s building project and their framework conditions — shouldn’t we simply accept the latter and focus on the floor plan?

Don’t get me wrong, do as you please. There are just different ideas about partnerships

Don’t worry, because this isn’t about me here, but about the OP. If you want to discuss partnerships and so on, open your own thread — let’s see who joins in and where that goes. I could even imagine that we would be quite close on that...

But it also doesn’t say what the better half thinks of the design.

Exactly, and that’s why I stick to what is stated and assume the best for what is not stated... but that may also be a personal/professional attitude of mine not to always assume the worst...

But if I wanted someone — whoever — to move in sooner or later, I might plan something more agreeable.

... I would too, or rather my wife and I would handle it that way, but this is not about me here.

It was never claimed here anywhere. And the OP has described his situation and the framework conditions. Based on these, it should be possible to constructively discuss the floor plan here.

Some of the "hard" core here tune out exactly for that reason. And that was the only point I wanted to make. I have no problem with it at all.

Some of the "hard" core here drop out for exactly that reason.

Ok, so it was more of a suggestion directed at the OP?

Although I do wonder what sense it makes to only want to give feedback if you are allowed to question the fixed framework conditions of the OP...

...well, whatever, I don't have to understand everything [emoji4]

However, I do wonder what sense it makes to only want to give feedback if one is allowed to question the fixed framework conditions of the OP...

Yes, why people opt out is not so clear to me either. Maybe the discussion isn’t worth it because it feels like the OP will do whatever he wants anyway without listening to advice. I actually don’t think so.
Or the idea of planning a house without the partner is simply too absurd.

Women probably prefer to discuss relationships rather than houses

because the feeling arises that OP will do whatever he wants anyway, without listening to advice

not at all. I have read everything carefully (regarding the house) and made considerations.
As a result, there will now be some changes in the bedroom and living room. And the basement will also change significantly.
So it has already brought a lot. Thanks again for the suggestions.
What surprises me a bit: no one has commented on the costs yet...
I would like to save about 50,000.
I am considering whether I should handle the self-contracting / coordination and supervision or not. What do you think, could one save money there?
Or make the whole thing a bit smaller after all? The basement is actually already much too big, the hobby room could also be spared. But making it smaller usually only reduces the construction sum very slowly.