Layout of city villa 164 sqm solidly built on a rear plot

Unfortunately yes, there is no other way to do it according to the building permit decision. Although I already have the idea to plan the driveway only at the very end, when entering the carport, to the full width of 6 meters and funnel it down to about 3 meters in the middle,

I couldn't google what Pfuschertaschen are. Do you have a link? Isn’t that a common wall construction?
I have to add, it is an EH 40 house.

If you have a positive preliminary building permit for the wastage of the floor area ratio, then let's just pretend I said nothing on this point ;-)

That patchwork pockets have become "a common wall structure" ;-) – you might actually be right about that – or did you mean to sum 24 cm plus 18 cm to THIRTY-THREE cm even though there is nothing in between?
I find 115 search hits for the term patchwork pockets here in the forum (counted before your question), but I’m happy to explain them again: these are mortar pockets where none belong at all, namely in the mortar joints of masonry walls. They occur when thoughtless planners invent fantasy dimensions of wall segments that a mason cannot execute properly. Then masonry units at places where a dry interlocking joint should be are filled with mortar like cream puffs in a pastry shop. This comes with disturbances of the overlap dimension and weakens the masonry bond in its structural and thermal stability. One could almost speak of masonry cancer, which, at least, neither grows uncontrollably nor metastasizes. It is pure sloppiness (but by the planner, not the mason), and there are no reasons for it, not even with the more noble KfW premium classes. The client doesn’t really care because afterwards the plasterer puts a cloak of silence over it. Then you "see" them at best in high-resolution thermography. Still, they remain avoidable rubbish. Houses will not collapse because of them – but making this a standard excuse, in my opinion, sets no moral example ;-)
At window reveals, the same fantasy dimensions lead to sawing through stones in places also not intended, thereby endangering correct window installation. So, at least conscientious window installers know that criticizing this grievance is not a private obsession of a single 11ant.

But since I basically gave you the homework to find these things yourself: simply divide each wall measurement by an eighth of a meter. Every non-integer result is a warning light.

Thank you very much for the detailed explanation. Now I understand. I suspect it is because the property is a first draft to create a rough cost estimate for us. Perhaps these planning sloppiness will be corrected in the more detailed planning. I will definitely keep an eye on this.

Based on the great hints here in the forum, I have adjusted the ground floor property in two variants to straighten out the confusion around the entrance area. Maybe someone has an opinion about that.

I know the Pappenheimers differently. For a cost estimate, I already find the draft far too detailed. The detail-to-diligence ratio would be too unfavorable for me to trust this general contractor.

Plot = floor plan of a city villa? - since you added the classification of the house on the plot later, I think: it should be oriented completely differently. The sunk costs of a second preliminary building inquiry are too trivial to forgo a relaunch because of them. Am I correct in assuming that the ground floor has always been started here? (unfortunately, that is a very common beginner’s mistake).

Why actually the room labels "Living/Dining" for "Living" and "Kitchen" for "Dining/Cooking"? And among other things, because of the location of the utility room, I wonder: what is the planner's profession? I can't shake the impression that this is an (interim) result of the builders' own search for somewhat suitable floor plan ideas, which were given to a general contractor and "redrawn" by their planner. What comes out of it looks like a professional plan...

so that I know where the error is now and can restart or supplement the planning?

Do you have concrete ideas or existing comparable floor plans

Another planning is not hindered by that. The preliminary inquiry only sets the depth of development through the second building row.

Unfortunately yes, it cannot be done differently according to the building pre-approval.

Exactly so it was. We sent him a floor plan of a model house that we like and he then adapted it according to our wishes.