Structural engineer not for probation acceptance, and now?

The completion of the shell construction (one week in advance!) must be indicated and the inspection report from the structural engineer must be attached immediately!

You could quote the state building code where other things are stated ;) . Unless you are building, I think, larger than 200 sqm.

You can quote the state building code where other things are stated ;) . Unless you build, I believe, larger than 200 sqm.

Do I understand correctly that the building authority actually has no reason to make this demand? I don't see anything directly about it in the NRW building code either, but I thought that municipalities can also set their own requirements and/or restrictions beyond that?

Edit: I'm not building larger than 200 sqm :)

§68 of the Landesbauordnung
(2) The structural technical proofs must for
3. single-story buildings with a floor area up to 200 m²

not be prepared or reviewed by state-recognized experts according to § 87 paragraph 2 sentence 1 number 4. In this case, the qualified structural engineer according to § 54 paragraph 4 certifies the compliance of the structural safety proof with the construction based on personal random on-site inspections.

Whoever believes that a site manager manages the construction probably also believes that a lemon butterfly folds lemons.

What is a site manager there for anyway. In case of doubt, he would have had to carry out a self-inspection before the concrete pouring to determine whether the reinforcement was properly installed.