Delays with the general contractor, no deadline set according to § 650 Building Code

Why exactly? Even the famous sampler said, yes, that works... I also want to include electrical planning. The general contractor does the electrical work later, but in the standard plan foresees a surface-mounted installation, which will later be covered with Rigitherm panels and then become a flush-mounted variant. However, the panels cost nearly €10,000, reduce the living space, and you basically have Styrofoam all around you... Planning early, embedding empty conduits, I find overall more sensible.

Where are the empty conduits supposed to be cast in? In the waterproof concrete?

So with a precast concrete basement, the interior walls are also made of concrete.