New single-family house 190 m² for a 4-member family

The staircase is the center around which a floor plan is woven. If that is not right, you can always throw everything away. In my opinion, your measurements are too tight. Of course, that also depends on the floor-to-ceiling height. These are questions that the homeowners want to deal with last, but actually, that needs to be put on the table first.

A common ceiling height today is around 2.60m. Standard stairs from catalogs often still work with 2.40m from grandma's times. But then one step is missing. So take a look at the ceiling and now decide what you would like or what the favorite even offers. You have a big house. The larger the rooms, the higher the rooms should be. For you, I would almost go for 2.70m. Adding a ceiling of about 30cm results in a floor height of 3m, which you can initially calculate with. You won't get under 16 steps there. On the internet, there are online calculators with which you can calculate stairs. The measurements for tread width and riser height should roughly be here: T: 26 to 27cm / R: 18 to 19cm.

The heating room is often particularly warm. Everything spoils faster. Also, here you usually store things like buckets, brooms, vacuum cleaners, mops, dirty boots, and similar household stuff. Of course, you can also place canned food next to it, but that is almost like storing the food in the bathroom (I am exaggerating so that the matter becomes clear). A separation also makes sense especially if you can cool the room down (or not heat it), so that fruit and vegetables stay fresh longer (e.g., tomatoes do not belong in the refrigerator).

Having the chimney 3m away is a tricky thing. Then you have the pipe running across the room somewhere, right? I would rather try to place the dining area at the gable, as you lose hardly any area for the photovoltaics there.

I would forget about a later rental or plan it consistently now. Then everything would have to be different and much more space would be taken up by the staircase.

What would be your suggestion to liven up the living room?

Separation of living and dining usually works wonders. If I were to build today again, I would have a kitchen with an integrated dining area—probably with a cozy corner bench at a nice window. The kids can paint at a large table while mom cooks and dad chops the salad. The chill room is completely separated or strongly zoned by means of a bay window.

Whereas dressing rooms for us fall into the category of "rather superfluous." We have no problem changing clothes in the bedroom; I don't have to go to a separate room for that (I know it's currently very fashionable).

I used to think that too, and we also don’t have a dressing room. I still find that absolutely okay, but if I had the choice today, I would want one, right next to the utility room. But it would be dispensable if the floor plan doesn't allow it.

Draft from the OP slightly varied:

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I left out the access to the technical room via the kitchen and instead preferred to enlarge the floor space.

Well, I don't know. You can build it, but in my opinion it completely lacks flair here. Quite a big house and yet little floor space in the bedroom, the living room somehow cramped and plain. There is a zoning through the fireplace, but at first it looks dull. You’d almost want to add a conservatory to avoid dying of boredom.

Good idea with the conservatory, why not?? And yes, there are probably much more exciting floor plans.

Okay, why would you want to have them?

My husband likes to sleep longer than I do. Especially on Sundays. It used to be different, but today I am always awake at 7 o'clock and want to go to the garden or to the kitchen or or or... When I then look for my things in the bedroom, it is dark on the one hand, so I cannot exactly define the sock color, and my husband grumbles because I rattle the closet doors.

Good idea with the conservatory, why not?? And yes, there are probably much more exciting floor plans.

Separation of living and dining usually works wonders. If I were to build again today, I would have a kitchen with an integrated dining area – probably with a cozy corner bench by a nice window. The kids can draw at a big table while mom cooks and dad chops the salad. The chill room is completely separated or strongly zoned by a bay window.

Something like this in principle?

From the principle something like that?

Not quite. The main room is then the kitchen-dining area. It is larger and the first room you enter. The chill room, on the other hand, is separate or completely closed off.