Bungalow floor plan design - ideas?

Hello everyone,
after reading along here for a while, I would now like to ask for advice.
We are planning to build a bungalow. At the moment, we are going around in circles with the floor plan.

I will first answer the questionnaire

Development plan.....not available /restrictions
Size of the plot.....1000 sqm
Slope.....no
Floor area ratio.....0.4
Floor space index
Building window, building line and boundary
Edge development
Number of parking spaces
Number of floors
Roof shape
Style
Orientation
Maximum heights/limits
Further requirements

Requirements of the builders
Style, roof shape, building type.....Bungalow with hip or gable roof
Basement, floors
Number of people, age....2 adults and two children (8+14)
Space requirements on the ground floor, upper floor.....see floor plan
Office: family use or home office?.....will be a multipurpose room, guests + hobby + office
Overnight guests per year
open or closed architecture.....closed kitchen with dining area
conservative or modern construction
open kitchen, cooking island.....cooking island
Number of seats at the dining table.....6-10
Fireplace.....no
Music/stereo wall
Balcony, roof terrace
Garage, carport.....double garage
Vegetable garden, greenhouse
further wishes/special features/daily routine, preferably also reasons why this or that should or should not be.....storage room as a basement replacement room

House design
Who planned it:
-contractor planner
-architect
-Do-it-Yourself....self-designed
What do you particularly like? Why?.....west terrace with access from the kitchen, children’s rooms with en suite shower
What do you dislike? Why?.....kitchen will probably be too dark, cloakroom in the vestibule difficult to realize, pantry without window
Price estimate according to architect/planner:.....construction company approx. €1300/sqm plus painting and flooring work and exterior work
Personal price limit for the house, including equipment:
preferred heating technology:.....air-to-water heat pump

If you had to do without, which details/extensions
-could you do without:
-could you not do without:

Why is the design the way it is now? E.g.
Standard design from the planner?
Which wishes were implemented by the architect?
A mixture of many examples from various magazines...
What makes it particularly good or bad in your eyes?

Some key data about the plot: the south boundary (street) is approx. 20m, the access to the plot must be there. The middle of the plot is approx. 21m and the north boundary approx. 23m wide, survey was last week. The plot is surrounded on the south and east sides by a wall, the other two boundaries are still to be built. There is an opening in the wall on the east side to the alley, which is why we would also like to set up the short access to the plot/house there.

The floor plan has basically emerged from the number of rooms, all of which must be there. However, I have concerns that the kitchen will be too dark due to the roof over the terrace and the narrow window.
Otherwise, I would like improvements in the entrance area and bathroom; I have a T-solution rather in mind than this arrangement.
The arrangement of the children’s rooms with the shower bathroom is basically fixed, distance parents and terrace.

Any ideas what could be changed? I’m going around in circles. I have already made a whole stack of sketches and yet I keep coming back to this arrangement. There is no development plan. We have submitted a preliminary building application, it was garden land until now, approval granted according to §34.

Many thanks for reading, it turned out quite long after all
Yvonne

Please JPGs and no PDFs

thanks for the hint, it will be changed immediately

What should the kitchen look like? Why [Miniatur-Speis und Abstellraum]?

Think differently. Imagine the house had a 35-degree roof pitch instead of your 30, which your program specifies. Then you can walk well on the top floor. Now you combine kitchen and storage, making space in the middle for an L staircase to the floor below. That will be your basement. The now differently located kitchen has two windows and is brighter; where the small WC is, the pantry room will go, unheated. What else I notice is that the bathroom with the tub is too tight. There is no space for a cabinet with towels and such. There is another shower, so why another one there? A shower bath, a tub bath. Or just somehow bigger. Under the L staircase, there is space for jackets and such. I think separating cooking, eating, and living rooms is right. These big railway station halls, which are now in fashion with kitchen zones, dining zones, and TV zones, don't appeal to me. Karsten

Thank you very much for the initial suggestions unfortunately the storage room on the ground floor has to remain, my husband is self-employed and always needs to temporarily store materials or prepare something for the end customer in the bathroom something definitely still needs to be changed, however with our children we do need two showers yes, the separation between kitchen and living room is very, very important to us and will remain