Floor plan design for a new single-family house - 610 sqm plot - opinions welcome

Apart from the image format, which you first have to download, I have to say that I really like the floor plan for the ground floor. I could imagine something like this for us. It offers almost everything I want for the ground floor except a place for a buffet in the dining area. Edit: On the upper floor I notice two things: - why the open space when the room could be used for another bedroom? - no shower in the master bathroom? Then you would always have to go to the children's bathroom to shower? I find that a bit impractical.

Thank you for the compliment! I myself wondered why I couldn't embed the floor plans, it must have had something to do with the format, it worked for the views. We probably still have to gain experience with this forum... - Open space: explicitly requested for lighting and the feeling of space. In addition, it allows a knee wall / dwarf wall with a height of 1.60 m in single-story construction, which we also very much appreciate. - Shower in the master bathroom: The shower exists, unfortunately it was covered by the room stamp, I had overlooked that. Many thanks for the pointers.

In the upper floor, I especially notice the many "botched corners" (what that is, is happy to explain), which on paper bring more square meters to the rooms, but in reality are hardly usable (e.g. in the children's rooms). I would be in favor of a clearer structuring on the upper floor.

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P.S.: I don't understand the windows from the piano room to the air space. Why windows? They probably do not provide sufficient sound insulation. Why are they different sizes? If there has to be an air space, then better open or possibly fully glazed or just another nice room...

- Botched corners: Yes, they exist. Our previous version was exactly the orthogonal orientation, as you sketched. Unfortunately, the bathroom didn’t fit that way (the shower was unfortunately missing in the floor plan representation) and both children's rooms were too small. In the longitudinal direction, due to the fixed structural beam, nothing could be improved. - Windows Office / Piano room: We would like a solid separation from the ground floor. Nevertheless, we want a certain transparency and of course not to waste the lighting from the large southwest facade for the entrance corridor. The two separate windows are justified by the option to possibly later partition this room with a drywall in extension of the children's bathroom. Another room is always great, but here we weighed the space requirements against the interior qualities in the living and dining area as well as the knee wall height now at 1.60 m. Thanks for the super well-founded feedback.

Is the garage allowed to stand there? Normally it must be at least 5 m away from the street almost everywhere. If the drawn lines are the property boundaries then it is rather only 3 m.

Dimensions in general would not be bad!

Why should it not be allowed to stand there?
According to the development plan, we have a building limit of 3 m towards the street in the north, which we comply with. The garage structure measures less than 3 m, which means the front setback areas should also be observed. We only invoke the privilege of boundary construction on one side towards our neighbor.
Of course, 5 m is ideal for parking cars freely, but in return, unfortunately, not much would be left of our already rather limited garden. Or do you know of another building regulation that mandates the 5 m?
Thank you for your comment!

The floor plans lack dimensions. The view up into the airspace towards the piano corridor would remind me of the view from the production hall to the foreman's office ;-)

- Dimensions: I omitted the dimensions because the floor plans are fully furnished. Therefore, there should hopefully be enough references.
- Window to the airspace: Finally, parents and children can see each other mutually. No, the transparency is intentional, and the size of the windows is justified by a possible future separation of the study from the corridor.
Thanks for the hint.

Or is there another building regulation requirement known to you that specifies the 5m?

It is usually already stated in the development plan. Additionally, there is often a parking space ordinance from the city or municipality. Whether your state building code makes specific regulations there, I cannot say.

The windowless back kitchen is 140 cm wide?