Floor plan of a single-family house (approx. 170 sqm) with garage - hillside location

I have made a new rough draft for the ground floor.

The front door has been moved slightly away from the garage. This allowed the technical room to be enlarged. After the entrance, you first enter a foyer, which is separated from the hallway by a glass door. I hope this will reduce the tunnel effect a bit.

What do you think?
Best regards

The master bedroom was just made smaller, there might be more possible in there...

The bathroom is missing the sinks.

In the dressing room/bedroom, the short wall must be removed. The wardrobe doors barely open.

The hallway is still almost 15 sqm.

Plan the front door slightly off-center and omit a side window so that the wardrobe and a cupboard can fit.

Children's room 2 is very narrow. Set it up to see if it can be used as desired at all.

You pointed it out, and I was too hasty:

I would make sure that your garden, lawn, and flowers are reachable on the same level from the kitchen. Screw the view: you have to do something in the garden every day, going in and out all the time... a staircase with a balcony is more of a nuisance. Also with a child... you have to and want to react, water the lawn, etc. A staircase is a barrier in the garden.

The lower floor has a residential basement character, while the upper one has a loft character (although the bathroom next to the living room is least to my taste). The stepped floor structure of the upper floor involves unnecessary structural and insulation effort for the lower floor. The flat roof has a somewhat beer coaster-like appearance, and the window design has a charm from the mid-seventies. Overall, I get the impression of an amateur sketch that a draftsman has shaped.

I would also prefer to go from the living/kitchen area into the garden, but having the garage as a balcony does offer possibilities. You just have to know what you prefer. However, there are regulations for balconies on garages if they are in the edge development. I think I read something about that once, so definitely check whether that is even possible. If yes, I would definitely also add a comfortable staircase from the balcony directly into the garden.

In your case, I would move the office forward on the right side of the living area and create a small separated space. Remove the wall between dining and living, move the living area further to the left side of the plan, and then place the WC after the office, separated from the living area by a small corridor, and you would gain a storage room upstairs (although I would definitely miss that in the upper floor). Overall, it would bother me to always have to carry groceries all the way through the house upstairs.

I am making a small sketch (not to scale, just for idea generation):

Another possibility would be to consider a split level, giving the living level direct access to the garden, the upper area as a parents’ wellness area with bathroom and sauna and a small roof terrace (Wow, that’s brilliant: you can lie outside after sauna sessions!) and then in the lowest area children’s rooms, hobby room, storage with its own bathroom. A good architect can surely create an ingenious design here.