Connecting two houses - How to design the renovation?

So above your first post, the question "Statics okay?" is asked, and now you write that it is not about a remote assessment of the statics. At the same time, you know that it is not a load-bearing wall, but the plans are, according to consensus, unsuitable for evaluating it. And in your second point, you only read escroda's statement as far as it suited you. You omit your paragraph regarding the building separating wall. Furthermore, a commercial use also seems to be present, which likewise affects the requirement for approval.

Overall, you do not seem to be an expert; therefore, remodeling work without professionals is a very bad idea. Whether someone prescribes this to you or not, you should seek professional advice out of your own interest.

Explicitly again:

Please confirm that the statics of the house will not be affected by the remodeling, and that nothing else will be affected (fire protection?, etc.) – I do not know exactly what else must be considered. Please confirm that the remodeling of the walls and doors in this case does not require approval.

You will only get that against payment from trained engineers on site.

... and another one who only wants to express with lengthy posts that he/she knows better and corrects the person seeking advice. Please only relevant answers. blabla is really just exhausting.

It's best if you write right away what you want to hear. That way, the risk of someone trying to enlighten you is eliminated.

Hello,

the confirmation you requested is not possible.

Reasons: Such a partition wall is very unlikely to consist solely of drywall. If it does, the stud framework will be load-bearing. Therefore, structural impairments due to the planned conversion are possible. A specialist can provide more precise information during an on-site appointment. No participant here in the forum can do that. This CANNOT be deduced from the drawing!

You need a permit, as Escroda has explained to you. In any case.

That was the summary of the relevant polemics of my predecessors.

... and another one who only wants to express with lengthy posts that he/she knows better and corrects the person seeking advice. please only relevant answers. blabla is really just exhausting.

You will not get your desired answer here. It is impossible.
You will have to spend several thousand euros at a service provider near you who will be liable for their answers.

Got it now? Or too long as well?

I add: Blablabla