Draft single-family house with approx. 168 m² feedback

Hello everyone,

For several months we have been proud owners of a plot with an existing building and want to start building next year.
After several rounds with architects and general contractors, two are still in the running, and we want to decide by next month at the latest with whom we will build.
The design was mostly taken from my sketches, and the more serious it gets, the more uncertain I become about how coherent the planning is.

I have been following the forum for some time and am looking forward to your honest feedback and hope not to be torn apart too much in the "lion’s den."

P.S. The site plan is not 100% accurate as we slightly enlarged the ground floor in the last round.

Bebauungsplan/Einschränkungen
Plot size 777m²
Slope no
Site occupancy index 0.4
Floor area ratio 0.8
Building window, building line, and boundary: 3m towards (play) street, BayBO
Edge development
Number of parking spaces: 2
Number of floors: 2
Roof shape: hipped roof
Style: modern
Orientation: garden faces SW
Maximum heights/limits
Other specifications: play street

Anforderungen der Bauherren
Style, roof shape, building type: modern, city villa
Basement, floors: yes
Number of people, age: 4, 37+36+1+on the way
Room requirements on ground floor, upper floor
Office: family use or home office? Home office
Overnight guests per year: 10
Open or closed architecture: open
Conservative or modern construction: modern
Open kitchen, kitchen island: kitchen island + open
Number of dining seats: 6
Fireplace: no
Music/stereo wall: yes
Balcony, roof terrace: no
Garage, carport: double garage masonry
Utility garden, greenhouse: no
Other wishes/special features/daily routine, also reasons why this or that should or should not be

Hausentwurf
Who is responsible for the design:
-Draftsman from a general contractor, adoption of do-it-yourself plans
What do you particularly like? Why?
What do you not like? Why?
I see optimization potential in the bathroom on the upper floor; house view NE

Price estimate according to architect/planner: €550,000 excluding additional construction costs and furnishings
Personal price limit for the house, including equipment
Preferred heating technology: air-to-water heat pump + photovoltaic

Wenn Ihr verzichten müsst, on which details/extensions
-can you do without: direct garage access to the house, window seat behind dining table
-can you not do without:

Warum ist der Entwurf so geworden, wie er jetzt ist? e.g.
Which wishes were implemented by the architect?
KfW55, open living kitchen with glass front facing the garden, office on the ground floor, dressing room in the bedroom, approximately two equally sized children's rooms facing the garden, possible living space for guests (later possibly children) planned in the basement

Was ist die wichtigste/grundlegende Frage zum Grundriss in 130 Zeichen zusammengefasst?
see above

I can't tell you much about the floor plan, others are more qualified for that, but I find the exterior views - southeast and southwest - somewhat still a bit unharmonious (I also can't enlarge the floor plan to read everything). May I ask with how many € you have priced the windows? Especially the 6-m window?

but I find the exterior views - southeast and southwest - partly still somewhat disharmonious

Yes. There are far too many window formats. The vertical lines also do not appear harmonious. Regarding the floor plan: I find the cloakroom successful. The 7.19 in length (living room) should be furnished realistically to determine that it is not as spacious as it appears. I think the access to the open space has received no attention in the plan at all. It really doesn't deserve that (nor does the podium staircase). I would place a nice double door opposite the stairs. If necessary, swap the living room and kitchen. Basically, I find it very unfortunate when you have to walk several meters at an angle to reach the place where things happen. In this respect, I would have swapped the entrance door and stairs so that upon entering the open space, I am looking into it and not at a door leading to a side room. Upstairs, the 2.88 in the shell construction will not be enough for an adult bed plus passage. In the bathroom, switch the shower access.

I would have also swapped the living room and kitchen. I find living in the top right of the plan cozier.

For the shower on the upper floor, I would definitely build only half-height walls and then install a glass wall. Otherwise, it will be very dark there. Otherwise, I find the corner bathroom really interesting

I would have swapped the living room and kitchen as well. I find living at the top right of the plan cozier.

Exactly, 7.19 should also be enough for kitchen and dining table. It will be too tight for corner sofa and dining table. Living room as a contained space rather than a passage room.

I have been following the forum for quite some time and am looking forward to your honest feedback and hope not to be torn apart too much in the "Dragon's Den".

Then you also know forum customs and respond to the answers?!