Floor plan of a single-family house on a slope with a basement

Development Plan/Restrictions
Size of the property 2000m^2
Slope approx. 10%, see attachment
Site coverage ratio
Floor area ratio max. 2 full floors
Building window, building line and boundary see attachment
Edge development
Number of parking spaces
Number of floors
free
Style free
Orientation free
Maximum heights/limits 12m
Further requirements

Client Requirements
Style, roof shape, building type: Gable roof
Basement, floors: basement
Number of persons, age: 5 (children <= 6 years)
Space requirements on ground and upper floors
Office: family use or home office?: Two offices necessary
Guests per year: Offices should be repurposed.
Open or closed architecture: rather open
Conservative or modern construction: functional.
Open kitchen, cooking island: open
Number of dining seats at least 5
Fireplace: no
Music/stereo wall: no
Balcony, roof terrace facing north and northwest
Garage, carport yes, not included in plan.
Utility garden, greenhouse
Further wishes/special features/daily routine, also reasons why this or that should or should not be

House Design
Who designed the plan: by me, before conversation with architect
What do you particularly like? Why?
What do you not like? Why?
Cost estimate according to architect/planner:
I expect 3000 to 3100 EUR / m2
Personal price limit for the house, including equipment: 900k Euro plus garage
Preferred heating technology: heat pump with ring trench collector

Why is the design as it is now? For example
We have meanwhile drawn several floor plans. All our ideas and what is important to us are included. We would like your opinion on where you see optimization potential. The fiction of the house is very important to us. We consciously do without roof dormers, bay windows, etc.

Attached you will find the floor plan and location map. (House should be built parallel to the street, as close as possible to the street)
The difference between two contour lines is 1m.
The arrangement of the rooms has been deliberately chosen this way. Please no discussion that the children's rooms are located in the north.
Currently not developed, completely pasture.

We would be very happy about opinions and even more about suggestions for improvement.

On the one hand, it would probably be helpful for others if you would mark the house with the ancillary facilities on the site plan. On the other hand:

Die Anordnung der Zimmer ist gewollt so gewählt. Bitte keine Diskussion, dass die Kinderzimmer im Norden liegen.

Wir würden uns sehr über Meinungen und noch mehr über Verbesserungsvorschläge freuen.

How do "no discussions" go together with "suggestions for improvement"?
Watch your choice of words: most people here have more experience than you.

On the one hand, it would probably be helpful for others if you would mark the house with the ancillary facilities on the property plan.
On the other hand:

How do "no discussions" and "suggestions for improvement" go together?
Watch your choice of words: most people here have more experience than you.

If the orientation of the children's rooms is your only criticism, I am happy.
And yes, you are right, we are not architects. However, we have ideas and would like to benefit from your experience.

In my original post, I only described it. Attached you will find a picture showing how I would position the building. Thanks for the hint:

For one, it would probably be helpful for others if you would mark the house with the ancillary facilities on the site plan.

I don't understand the stairs ... how can the stair exit on the upper floor be achieved with the stair layout?

I don't understand the staircase ... how can the staircase exit on the upper floor come about with the staircase layout?

It is supposed to be a 1/4 turn staircase. 2 equal legs.

If the orientation of the children's rooms is your only criticism, I am happy.

Probably less so. But it is also specifically about a tone you use with children and not in a forum where adults are.

And yes, you are right, we are not architects. But we have ideas and would like to benefit from your experience.

Not without reason did I ask for the site plan: you are kind of hanging in the air with the house?! I would urgently advise you to leave naive and layman ideas alone and go to an architect who is experienced with slopes.

Who is the planner: me, before talking with an architect

What kind of person is that? Why doesn't he plan with your room program?