Floor plan for a single-family house on a 1200 sqm plot

Development plan/Restrictions
Size of the plot: 1200sqm (20m south-/street side * 60m north-/garden side)
Slope: No
Site coverage ratio: 6m to the street, 3m to neighbors must be observed; building allowed up to 40m to the rear.
Floor area ratio: 2 full floors, unfinished attic
Building window, building line and boundary:
Edge development:
Number of parking spaces: 2, probably carport
Number of floors: 2
Roof type: hipped roof or gable roof (up to 35°)
Style: classic to modern
Orientation: north-south
Maximum heights/limits:
Further specifications:

Requirements of the builders
Style, roof shape, building type:
Basement, floors: living basement, 2 full floors
Number of people, ages: 5 (44,39,9,6,2)
Space requirements on ground floor, upper floor: ground floor with kitchen, living-dining area, guest/workroom, guest WC; upper floor: 3 children’s rooms, 1 bedroom, 1 bathroom
Office: family use or home office? Both and guest use
Guests sleeping per year: 4
Open or closed architecture: open
Conservative or modern construction: rather modern
Open kitchen, cooking island: kitchen possibly separable from living-dining area by sliding door, no cooking island
Number of dining places: 6
Fireplace: still open
Music/stereo wall: no
Balcony, roof terrace: no
Garage, carport: rather carport
Utility garden, greenhouse: no
Further wishes/special features/daily routine, also reasons why this or that should or should not be: The guest room on the ground floor and the bedroom on the upper floor should be approximately the same size, so that the parents could move downstairs later when the children are older.

House design
Who is the planner: -Do-it-Yourself
What do you like in particular? Why? We like the articulation of the cube with the clinker brick elements of the simple extension in combination with the hipped roof. Good use of the west sun and bright rooms despite the north orientation
What do you not like? Why? We are still unsure about the stairs. Possibly 2*1/4 turn stairs better?
Price estimate according to architect/planner:
Personal price limit for the house, incl. fittings:
Preferred heating technology: ground source heat pump

If you have to do without, which details/extensions
-you can do without: fireplace
-you cannot do without: 4 bedrooms on the upper floor, the “extension” of the living room differentiated by clinker brick

Why did the design end up as it is now? For example: We wanted 3 not too small children’s rooms (>14sqm) and a master bedroom on the upper floor.
Standard design from the planner? Own design
Which wishes were implemented by the architect?
A mix of many examples from various magazines...
What makes it particularly good or bad in your eyes?

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

Hello, we are sending our design for our future single-family house for review. What does your experience say, does this floor plan work, do you see major weaknesses? We would appreciate feedback! Thank you!

Check floor area ratio
the long access road and development cost money.
What is your budget?

Why not a long house with a west terrace?

Dimensions missing to assess the floor plan. Move the bedroom out of the south
Dining area appears too small

Is south facing the street? The kitchen area is too dark. Please check all dimensions (stair length, entrance door, common windows). Less than one meter in width is too narrow. Despite the panoramic windows in the west and north, sunlight is not captured.

Please stick to your original post (April) and add to it... constantly creating new threads for the same house on the same plot is not sensible and tedious, reconstructing everything. After all, it is a discussion forum and not a query system. Much has already been discussed regarding the location.

The floor area ratio is 0.2 Costs approx. 500k€

The outer dimensions of the basic structure are 10m * 10m. The staircase is 1.10m wide and 4m long. We have sized the windows at 1m * 1.40m. The design of the windows, whether floor-to-ceiling or not, is still open. The reason why the house was planned square and not rectangular is due to the more favorable layout of the rooms on the upper floor. From the southwest top view, you can see that we have added a south-facing window in the extension. A second west-facing window in the kitchen is also possible. Since we will probably design an open kitchen, the rooms should get enough light, right? Would floor-to-ceiling windows possibly help?

Please stick to your original post (April) and add to it... constantly creating new threads for the same house on the same plot is not sensible and tedious to reconstruct everything. After all, it is a discussion forum and not a query system. Much has already been discussed regarding the location.

Oh, I see, all right, sorry! Many thanks for the hint.