Floor plan planning shortly before submitting the building application

But where is your problem

I don't have a problem with it, the general contractor does!! The entire plan-right wall is now allocated with solar technology, heating technology, hot water storage, etc. The house connection box is in the way and he says it cannot stay there. I don't give a damn where the thing hangs. But they are demanding that I have it changed because otherwise work cannot continue. And they just write to me that the house connections are clearly marked on the plan-top wall and not on the right.

Lol. Then your [GU] should take care of it. His problem, not yours. His construction site, not yours.

Lol. Then your general contractor should take care of it. His problem, not yours. His site, not yours.

He is twisting it so that the supplier and the demand for services do not fall within his scope of responsibility (which is not part of the contract for work). I am supposed to be the contact person for the supplier. In principle, he is right about that. Then I can at most argue that NOTHING was told to ME about where the house connection box should specifically go.

However, I also doubt whether the planning document does not clearly state that the house connections are to be installed on the top wall of the plan. No one has written anything about that yet. Should the house connection box have been listed separately again?

Lol. Then your general contractor should take care of it. His problem, not yours. His site, not yours.

I'd be careful there. Of course the general contractor has to solve the problem but in the end it's your house for a lot of money. Basically, I would always be in favor of solving problems together. If you just leave him alone, he might do something that you don't like at all. He might deduct a few euros from the bill at most but you have the mess forever.

Push everything to Monday. If in doubt, ask the new expert.

For us, it was the responsibility of the GU/site manager. The plumber had positioned his things incorrectly, and the supplier left without accomplishing anything.

But they are demanding that I have it changed, otherwise work cannot continue. And they write to me that the house connections are clearly marked on the top side of the wall and not on the right.

Who is demanding the change? - if I understand correctly, it’s the heating engineer:

The heating engineer says he needs the entire wall and cannot install there.

But he also could not have installed the previously planned technology there because the energy connection is located on that wall. Whether with a box or not, it is basically drawn there – it must be expected that it will be enclosed in a box; and the box as a housing has nothing to do with the fact that this connection must be accessible. You cannot simply place the heating stuff in front of it as drawn.

The heating engineer will have to look for another wall and change the layout of his entire system, or the general contractor arranges and pays for relocating the house connection box to the wall with the other connections.

Even if you sealed the envelope with the plan to the supplier: the plan was drawn by the general contractor, and as a layperson you cannot recognize the error. So it is the general contractor who misinformed the supplier.

The supplier acts entirely correctly by proceeding according to the plan and not by reading wall drawings. The electrician also acts correctly if he only handles the box from the output side and leaves the input side (and thus the location of the box) of the Kaiser alone. The general contractor must check the plans before sending them!