ᐅ Bungalow Floor Plan Design – Any Ideas?

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

I will first answer the questionnaire

Development plan.....not available /restrictions
Plot size.....1000 sqm (12,000 sq ft)
Slope.....no
Floor area ratio.....0.4
Site coverage ratio
Building envelope, building line and boundary
Edge development
Number of parking spaces
Number of storeys
Roof shape
Architectural style
Orientation
Maximum heights/limits
Other requirements

Client requirements
Architectural style, roof shape, building type.....Bungalow with hipped or gable roof
Basement, floors
Number of people, ages....2 adults and two children (8 and 14)
Space requirements on ground floor, upper floor.....see floor plan
Office: family use or home office?.....will be a multipurpose room: guest, hobby, and office
Overnight guests per year
open or closed layout.....closed kitchen with dining area
conservative or modern construction style
open kitchen, cooking island.....cooking island
Number of dining seats.....6-10
Fireplace.....no
Music/stereo wall
Balcony, roof terrace
Garage, carport.....double garage
Utility garden, greenhouse
Additional wishes/special features/daily routine, including reasons for preferences or refusals.....storage room to replace a basement

House design
Who designed the plan:
-Builder's planner
-Architect
-Do-it-yourself....designed by ourselves
What do you especially like? Why?.....west terrace with access from the kitchen, children’s rooms with shower bathroom as one unit
What do you dislike? Why?.....kitchen may be too dark, cloakroom in entrance vestibule hard to implement, pantry without a window
Price estimate according to architect/planner:.....Builder approx. 1300 €/sqm (approx. $150/sq ft) plus painting, flooring, and landscaping costs
Personal price limit for the house including equipment:
Preferred heating technology:.....air-to-water heat pump

If you have to give up something, which details/finishes
-can you do without:
-can’t do without:

Why is the design the way it is? For example
Standard design from builder?
Which requests were implemented by the architect?
A mix of many examples from various magazines...
What makes it, in your opinion, particularly good or bad?

Some key data about the plot: the south border (street side) is about 20 m (66 ft), the access road to the property must be here. The middle of the plot is about 21 m (69 ft) wide, and the northern border about 23 m (75 ft), surveying was done last week. The plot is bordered on the south and east by a wall; the other two boundaries will still be built. There is an opening in the wall on the east side leading to a lane, so we would like to create a short access path to the property and house there.

The floor plan was basically determined by the number of rooms, all of which must be included. However, I am concerned that the roof over the terrace and the narrow window will make the kitchen too dark. Otherwise, I would also like improvements in the entrance area and bathroom; I imagine a T-shaped layout rather than the current arrangement. The layout of the children’s rooms with the shower bathroom is more or less fixed, as is the distance between the parents’ area and the terrace.

Any ideas what could be changed? I keep going in circles. I have made a whole stack of sketches but keep returning to this layout. There is no development plan. We have submitted a building code pre-application; the land was previously classified as garden land, and building permission was granted under §34.

Thank you very much for reading, it got quite long.
Yvonne