Floor plan for a house on a slope (ground floor and residential basement) with a maximum of 150m²

I fear that moving the garage forward (or the house backward) will significantly affect the construction costs.

I believe that too. Let's tweak the matter a bit. The small children's rooms have been a thorn in my side all along. That's why this suggestion. Large children's rooms, large hallway, large wardrobe closet, large shower, large open plan area, large kitchen island – everything a bit more relaxed with the same floor area. The dressing room was rather unimportant – it was sacrificed.

Thank you for the renewed attempt, Katja. We will take a close look at it. We have also decided to consult another [GU]. Although we are convinced by the current one regarding construction and quality, the planning was done too simply or too little consideration was given to our wishes. Let's see what comes out with the next [GU]. The next draft will be coming...

A site plan would of course be nice for all readers.

Hello.
There are also a few news on our side.
In the meantime, we visited another general contractor who also appeals to us a lot. The first draft here went in the same direction as the first GC in this thread.
A second draft will follow now.
Also, a new draft from the first GC is now available, which manages the separation entrance/bedroom quite well.

I have already made some thoughts about it, but I am curious what you think?

Reminder: South is approximately at the bottom of the plan

I would be interested in any feedback on the floor plan. I like it very much. Of course, there are also compromises, but that is always the case with a limited budget.

Your UG is not working. Draw the table with occupied chairs and measure the distance between the sofa and TV.