Floor plan city villa 180m² with single-story construction on schma

Sent too early but I can't find anything to edit my post.

As the title already says, we are planning a city villa with about 180m² and single-story construction. Since the 2/3 rule applies in Lower Saxony, we have to manage a bit with bay windows, a gallery, terrace roofing, and an entrance roofing. We have a plot with a building envelope of 10m by 29m. I have now started drawing and would like to hear some opinions on it. Thanks in advance!
Development plan/restrictions
Plot size - 550sqm
Floor area ratio - 0.33
Floor space index - 1
Building envelope, building line and boundary - 3m
Edge development - Garage is allowed in edge development
Number of parking spaces - 2
Orientation - Terrace facing west
Requirements of the builders
Style, roof shape, building type - City villa with hipped roof and bay window
Basement, floors - no basement, 2 floors which according to regulation count as one
Number of people, age - 2 around 30 years old
Space requirements on ground and upper floor - 80m² on the upper floor
Office: family use or home office? - family use
Guest sleepers per year - approx. 10
Conservative or modern construction - modern
Open kitchen, kitchen island - open kitchen with kitchen island
Number of dining seats - 6-8
Fireplace - yes
Garage, carport - double garage with storage room or workshop

It should be a solid house, preferably with interior insulated bricks.

House design
Who is responsible for the planning:

The planning is from me, I like that it is such a nice house and fits the requirements on the plot. There is no price limit for now. We would like to heat with an air heat pump.

I'm afraid nobody here really takes this outpouring seriously. The staircase looks way too short to me, the bathroom with 20m² is somewhat absurd, the struggle over 2 full floors is incomprehensible, etc. Maybe better to consult the architect after all!