Floor plan 175 sqm gable roof without basement

I would have thought it is 16.92m

You have not yet taken all the remarks into account and incorporated them into the planning?

That is correct. But unfortunately, I can't either, I don't have a tool/program with which I can do that :(

In my opinion, the existing house and the surroundings indicate that the eaves should face the street. Or does the development plan say nothing about that?

But more than 17 m ... unfortunately, you have not yet dimensioned your site plan. I had, for example, the 16.92 only roughly measured from your data using the not exactly resolvable Google graphic. Maybe you can take my measured values and write again which distance is now how long, so

16.92 = 17.xx m
09.56 = 10.xx m (you had already written this somewhere)
34.96 = ?? m
28.00 = ?? m
17.43 = 18.xx m (you had already written this somewhere)

I have just received the surveyor's plan. But it does not contain any length measurements. Is that normal?

Somewhat unusual, but as long as a scale is indicated, okay. There should be somewhere a 1:200 or something like that and next to it a proper line. Then you can measure from it and take off all dimensions on the plan and convert them.

As an accusation: garage planned incorrectly and the children's room is a storage room with almost 14 sqm. Wow... do you even realize that yourself?

The only one who will realize it is you, when after countless months of waiting your building application is rejected, while you are already worried about whether you can avoid the commitment interest.

I also find it astonishing that you don't care at all that your "architect" hasn't dealt with your development plan yet. And even more astonishing is that he hasn't done it. An architect doesn't do that. It's like the Pope not having a Bible.