WU concrete + flush-mounted boxes in the residential basement - how can this be solved?

It's more about the statement maximum 3 holes why should it become leaky with, for example, 4 or 5 holes?

I was explained that this is about the structural integrity of the wall as such.

Don't let yourself get stressed! In a year you won't even remember exactly when your house was finished, but whether it is professionally done, you will know exactly.

Well, we have already given notice on our apartment... actually the whole thing was supposed to be finished in September, we have given notice for November 30th to be sure. Now it's the end of June and we are still far from the screed. Basically, you are of course right

Update for you: On the part of the developer, it is now suddenly said that even if the boxes had been cast in from the beginning, there would have been no warranty for the waterproof concrete anymore. Extremely annoying, I can't even tell you how much this pisses me off. Why do I even have a basement with living space built...

According to the Homeowners Protection Association, in a modern single-family house that was offered and bought with a basement with living space, it is to be assumed for all installations in living spaces, including the basement, that the execution is done flush-mounted.

For me, however, the die is unfortunately cast. I will definitely not waive the warranty for the basement. So now I am left with only the unpleasant and never wanted from the beginning way to the skirting board channel. I could puke.

Or as has been said 5 times already, installation level! Sometimes you can also act up.

You can also lay electrical wiring in the screed and then install a surface-mounted box. Then you don't have a cable duct. Screed already done?

No, not yet. Surface-mounted boxes are, to me, absolutely hideous visually. We have now decided on the skirting board duct variant; at least the device carriers are somewhat decent-looking and not as deep as traditional access point boxes.

No, not yet. Surface-mounted boxes are, for me, absolutely the worst in terms of appearance. We have now decided on the skirting board duct variant; at least the device carriers there are somewhat decent-looking and not as deep as classic access point boxes.

Yes, it’s not sexy, but with the idea of doing the wiring in the screed, you at least avoid cables or cable ducts running along the wall. Otherwise, you’d still have to squeeze them behind the baseboards.

yeah, it’s not sexy, but with the idea of doing the wiring in the screed, you at least avoid cables running on the wall or cable ducts. Otherwise, there would still be some squeezing behind the baseboards.

Haer Thealit offers a 55x20mm duct, which conveniently has exactly the same dimensions as the white skirting board we would have laid anyway.
In that respect, it fits in at least somewhat.