New single-family house on sloping plot

The kitchen with [Speise] is 18m2, so not small. ONLY, with [Speise] the kitchen is tiny and not practical to furnish.

Typical again. Cuddling with the car is more important than the access to the garden. A men's house.

No, it is primarily practical because groceries and small children do not have to be carried through the garden first.

So I think windows facing south are necessary to make the hut bright. For the terrace, it is almost too warm during the entire outdoor season. I would plan the seating area rather next to the house, a small seating area for spring and autumn in front of the house, play area behind the house.

No, it is primarily practical because groceries and small children do not have to be carried through the garden first.

Well then everything is perfect.

My assessment regarding windows and doors matches yours. Far too many different formats and sizes. However, this is currently fashionable. I generally do not appreciate horizontal windows, but perhaps they suit your taste. Horizontal windows are often installed nowadays.

Maybe you can fit a few double-winged (or double-width) doors in the interior doors, for example to the kitchen and hallway.

The following is just my personal preference and often leads to discussions within my marriage as well: I don’t really like so many small rooms, as in your ground floor (pantry, wardrobe, laundry room). I would rather try to integrate the wardrobe into the hallway without partition walls. Expand the kitchen to include the pantry. Possibly make the ground floor WC a little larger, and is the laundry room really necessary?