First draft: 2-storey with staggered shed roof

Can you please draw in north? Oriented with north at the top would only fit not with the terrace

Sorry! I was a bit mixed up just now and confused my thoughts!

North is at the bottom / South is at the top

Then treat us to some elevations for your floor plans. Neighboring plots are also missing: the street is probably at the bottom of the plan (?), but where does the slope come from, does the street bend there?

The street is at the bottom of the plan.

Neighbors are to the east and west. To the south there is a field. The slope comes from the neighboring plot, which is located in the northwest (cul-de-sac).

Finally, a floor plan drawn with a pencil that is easy to read

Draw the complete furnishing in every room

Ground floor: hardly any wardrobe space due to the doors. Too little for 4 people

I don’t like the kitchen with the empty space in front of it

Upper floor
Drainage laundry area?
I would reduce the size of the utility room. Not necessarily put the washing machine on the wall next to the bedroom. Give the bedroom more width at the bed.

Child 2 to the warm south and utility room and parents to the cooler side.
Actually everything upstairs new

Would throw out the kids' bath.

Then treat us to some views for your floor plans.

I tried to draw two views. I think the windows are not final yet. But at the moment, I still lack the feeling for whether or how to add a south-facing window, for example, in Child 1.

Oh look, that would have been the last thing I'd have thought of, to lay the "Firstrichtung" crosswise to the house axis.