Improve floor plan - how?!

Hello! Obviously, our floor plan, as we had wished, seems to be causing practical problems. We are planning a prefabricated house (9.42x9.42) with a gable roof, knee wall 1.60, roof pitch 25 degrees. At our request, the entrance is to be located on the north side under the eaves. We are actually happy with the ground floor. Important to us on the ground floor were the open living-dining area, the guest/workroom, and the guest toilet with shower. The utility room has a window that goes under the carport. Now to the upper floor, which I find nice but which is causing problems: 1. The door of the north children's room opens against the window. Should it be hinged to open into the room? Open outward to the hallway, as planned for the bedroom (why is it like that there?)...? 2. The window in the master bedroom on the upper floor (south side) is planned without a roller blind. This is because for a roller blind a distance of 2.05m to the side wall with the slope must be maintained. In the current plan (open dressing area), the window could still be shifted a bit. But my wish was to close the wall to the dressing area and access it from the hallway. To accommodate the window there, according to my calculations the dressing area would have to be reduced by 70cm, which is hardly possible. Do you have ideas for redesigns that could help us here?

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Development Plan/Restrictions
Size of the plot: 500sqm, corner plot street on North/West
Slope: North part (house) flat
Site coverage ratio
Floor area ratio
Building window, building line and boundary:
3m to the street, otherwise free
Edge development: none
Number of floors: 1.5
Roof shape: gable roof
Orientation: South
Basement: none

Requirements of the Builders

Number of people, age: 2 adults, 2 children
Space requirement on ground floor, upper floor: as in the design
Office: combined office/guest room
Open kitchen
Garage, carport: carport plus garage on east side

House Design
Who is the designer:
- Planner of a construction company

What is especially liked? Why?
What is not liked? Why?
Price estimate according to architect/planner:
Personal price limit for the house, including equipment:
Preferred heating technology: air-to-air heat pump

If you have to do without, which details/extensions
- you can do without: daylight in the hallway on the upper floor, but it is nicer with it
- you cannot do without:

Why did the design turn out the way it is now?
Standard design from the planner?
Yes
Corresponding/which wishes were implemented by the architect?
- Guest room + shower bath on the ground floor
- Rotation of the roof so that the rooms on the upper floor have south-facing windows

What is the most important/basic question about the floor plan summarized in 130 characters?

See above.

Hi,

furnish it with realistic furniture.
I think it will be tight in a few corners.
Where is the 2m line? I read something about a knee wall of 1.6. Then the square meters wouldn’t add up either.
You don’t like much light, do you?
Saved a bit on windows?
How wide and deep is the bedroom?

The bedrooms will be quite dark, and also in the ground floor living/dining area I would make wider windows. Are no windows possible at all with a 1.60 m knee wall? How much space do you have up to the ring beam? Even narrow ones would make a big difference (although then it probably only works without a roller shutter box). In the end, only skylights remain?

Yes, you are right, the windows downstairs need to be wider. Planned is a double door 2.10 in the living area facing south in the middle and double doors 1.50 on the left and right of it, as well as 1.50 facing west to the dining area. Upstairs, we want to add 2 knee wall windows (light bands) in the children's rooms. This was not planned in the bedroom because they face the neighbor.