Original building permit documents to the construction company?

We or I will simply seek the conversation, and if I get the feeling that they are being uncooperative, I have to take action. We were also lucky or it was a coincidence to be able to speak with former clients, and they only reported positive things, also had a separate construction supervisor. And personal experiences are, in our opinion, very valuable.

I do not read the problem you are presenting here in that passage.

All good. You have to be able to read laws!

Good luck with building!

Thank you

and if I get the feeling that they are resisting, I have to act.

Where exactly is your problem now?
This is quite a normal clause. You may at any time... you just must not disrupt the construction work.
If necessary, also coordinate if you absolutely have to get in on a specific day.

This is part of general security, someone above also wrote that (e.g. so that the screed doesn’t get damaged).
I wouldn’t be impressed at all by such clear phrases in the contract and wouldn’t even mention them – otherwise you might be labeled a difficult fury and when it counts, not taken seriously anymore.

Maybe I'm just exaggerating it. We will let it happen and then see.

Yes, I am an accountant and a trained legal assistant and probably think and act that way because of it. I find it important to double-check, not down to the last cent, I’m not at work, but you still want to have an overview, right? And no, I don’t immediately come around with a lawyer

well, it’s fatal that you apparently signed something like that with such a mindset...

sorry for the criticism