Opinion on the house design

The bed is supposed to be in the bedroom (2m wide x 2.50 long) and 2 nightstands (40cm x 50cm) So we need bed + 2x 50cm wide, we have 3.10m and 2.50m + TV depth 30cm 2.80m long, we have 3.30m

You forget two/three things: 1. The person also needs space. 2. The craftsman takes your dimensions as raw building dimensions, so plaster will be added, and you won’t get your furniture in anymore. 3. You can’t place furniture tight against the wall. There always has to be some air (Air = cm).
Your bed therefore needs 200cm... a person about 80 cm on one side of the bed, that makes together 360cm, not 310. How you furnish the 80 on each side is up to you.
Your bed is 250, so it needs approx. 255 of space, the person about 80 cm plus TV cabinet 35cm = 370cm

The dressing room is for 2 dressers each 48cm deep and opposite wardrobe 62cm deep, makes 1.10m. We have 2.30m. So 1.20m as passage

...makes 110cm as a passage, which is defined as a slalom passage. If then someone has the wardrobe door open and stands there, the other person can no longer pass by at all.

There should be a continuous cabinet construction in there that holds all media devices including speakers. No windows on the side because of the dark room effect.

It’s not supposed to become a homebody.

...just like the parents?

We’re still thinking about using the big corner in the hallway for a small pantry.

Even more slalom???

The slanted wall in the utility room should give us a bit more space and since it’s in the basement the look is not so important. What else is bad about a slanted wall?

It costs more and your example clearly shows that an incompetent planner is at work here.

Sound transmission shouldn’t be a problem. It’s a single-family house, so no neighbors.

Family members also make noise.

These are all just ideas and drafts overall for the planner who is supposed to turn the whole thing into "buildable."

Then you should leave your "planning" at home! An architect knows how to handle a hillside property better.

50 cm around the bed as pathways, those are mole tunnels after all. And then the slalom through the dressing room into the bedroom.

Children's room facing northeast .. hmm

I would like to see the living room / kitchen furnished with the entrance position.

What I also don't understand is how the terrace will be positioned.

As a suggestion, the example from still applies to this plot .. there with a double garage, but you can also make it a single garage. And living/cooking could certainly be swapped as well.

After much back and forth, a new plot of land and a lot of disillusionment regarding the costs, we have now arrived at this design. Exterior walls 48cm, load-bearing interior walls 24cm.

Site plan? North arrow? Then, some corners are now made exactly to the furniture dimensions, without considering that plaster etc. will be applied to the walls. So, if 180 cm is needed for furniture, the wall niche should be planned with 185 cm, etc. I consider a guest bathroom with a shower in front of the window unfavorable; the shower/toilet could be swapped. If the round thing in the living kitchen is supposed to be a stove, then the sofa should be made of stainless steel so it does not catch fire. Personally, the dining table there would also be WAY too small. It shouldn’t exceed 80x80. The staircase is once again drawn way too small. The hallway has a total width of 320 cm... the staircase should take up about 220 cm. That leaves 100 cm as a passageway, and you still want to put cabinets there. The parents’ area has become quite generous.

Three "big" baths - not bad

Greetings

that is not an oven, it is a small side table. The furniture is coming later. Guest shower, let's see, but probably leave it. It will only be used 2-3 times a year. The stairs will be done by the architect. It was the only u-shaped one in the program.