Floor plan of a single-family house with a living basement on the slope

A central element in a multi-story house is the staircase. In my opinion, it is too narrow here (after deducting the handrail, it should be at least 1 meter, and that for a straight staircase!), but above all, it is much too steep. In addition, you almost fall down the stairs at the entrance. Therefore, independently of a design, first determine which staircase you would like. The same way of thinking applies to all other rooms, without regard to a specific floor plan. Where should room X (e.g. bedroom) be, how should the bed be positioned in it, where should the entrance to the bedroom be, the view, the morning sun? Like the dressing room. You probably don’t even know the questions that need to be answered. Write down everything that is important to you, and then find an architect whose references fit. Regards WD

Hello and thanks first of all to everyone for the feedback!

To move forward, however, a few questions about the comments or a bit more info from my side:

- Staircase doesn’t work? How could it work?

It needs more space... and a better one...

- Hallway too dark, OK I have already let the hallway extend all the way to the window front so that light comes from the front and so that you can get from above to the terrace below without detours. Currently, the rooms are therefore built somewhat around the hallway. The hallway is currently there because I did not place the staircase too far from the entrance (which is supposed to be partly under the carport) from above. How do I get more light into a hallway in the basement?

One does not design around something (except around the staircase). The hallway does not work even if it were brightly lit... it is simply too narrow, it triggers claustrophobia... I would not want to enter there voluntarily.

The rest also needs revision. Therefore: familiarize yourself with design planning (Google or expensive books) or call an architect – especially in two-story buildings on slopes they are very useful when the client is not familiar with the subject.

Hello Pit

Bed, wardrobe, desk and a TV mounted on the wall somewhere, visible from the bed. With that, the requirements for a youth room are more or less already fulfilled. Mine was like that anyway and I lacked nothing.
Of course, if it’s supposed to be a French bed with a huge wardrobe, then you need a bit more space again, but you also have to know whether that’s necessary.

I also find the 11sqm for the baby room too much. I mean, a baby lies in its small crib at most and doesn’t need anything else (at least at night – and during the day you usually have it around you or it lies again in the bed). With you, the crib resides in an 11sqm room and on top of that you have to walk through the entire bedroom and the hallway to get to the baby room when it wakes up and cries at night.

Completely discard. This thing simply doesn't work at all.

Are you really convinced by the draft so much that you absolutely wanted to publish it?
I don't know how many times I started over until I had a draft that really convinced us.

I suspect you first planned the living room/kitchen and then tried to somehow fit the remaining rooms downstairs.
But I think the problem area is more downstairs and it should probably be the other way around.
In general, I suspect that you need to bring the staircase more centrally to get reasonable rooms in the basement without a narrow corridor.
I would try to get rid of the 3rd bathroom. First, it just costs extra and second, it takes up space.
This could be achieved by moving the guest room or the bedroom upstairs. For this, you probably also have to make "sacrifices" in the living room area.
If the bedroom should remain downstairs, you could put a dressing room in the rear "dark area."

Hello and thanks again for the comments. I now realize that the endless hallway was not such a great idea. Unfortunately, I couldn't come up with a solution for how to elegantly get from upstairs (without having the staircase in the living room) to the terrace in the basement. OK, I deleted the flight of stairs and instead enlarged the middle room. In an emergency, I can now simply walk through, or I'm considering adding a spiral staircase from the upper terrace down. That way guests wouldn't have to walk through half the house, for example when grilling downstairs. I was also able to significantly reduce the flight into the bedroom, but I couldn't manage it without. The bathtub extends somewhat through a glass window into the bedroom, I thought it was nice to catch some daylight from the front. I slightly tapered the utility cellar to make the other rooms wider. The stair situation is very difficult, but I hope with the space it should be enough now; from the front door, there are about 2.6 m to the stairs, that should be enough to not fall down!? The built-in wardrobe is supposed to be part of both the living room and the hallway and provide a lot of storage space. The fact that the hallway behind it is not that bright and large I don't find so bad. I didn't want to do without the guest WC so as not to always have to go up and down stairs. In general, I think we will stay about 80% in the living area (except for sleeping). The structural engineering will probably be interesting, but I have already seen larger rooms with open roof trusses (of course it can get expensive...) OK, now I will release the revised version for final approval.
Regards
Pit

I still don’t really like the sleeping area. I would do without the door from the bedroom to the hallway and instead extend the lower wall of the bathroom further down. This way you gain space in the bathroom and can plan for both a shower and a large bathtub as well as a "hidden" toilet. There’s nothing worse than when one person is sitting in the bathtub and has to watch the other on the throne.

In my opinion, you won’t really lack space in the bedroom either, since it’s currently a huge dance hall.
From the bedroom, you could then set up a small dressing room on the left and from there access the hallway. The advantage is that with just one door you can separate your whole sleeping area including the bathroom. I think that is an incredibly valuable additional level of privacy.

After that, there is still enough space to accommodate a small guest room, a children’s room, your workshop, and the laundry (which doesn’t need 7 sqm) on the left side of the house.