Additional cost for electrical equipment

Hello everyone,
since I am currently planning my additional electrical equipment, I would like to ask for your experience in order to better estimate the prices from my electrician. Basically, I am interested in additional costs compared to the existing electrical package according to the construction/performance description for the solid house. The comparison basis should be "all-in" values, including material and installation.
- Additional cost per socket (single and double)
- Additional cost for "switchable" sockets (via light switch)
- Additional cost per light outlet
- Additional cost per TV connection
- Additional cost per network socket (double socket, CAT-7 cable)
- Additional cost for motion detectors (house entrance)

Thanks in advance for your comments!

No experience in the forum....? What do the moderators say ;->?

It is summer .. not everyone feels like looking up their comparison prices and your request is not even 17 hours old including a night in between.

And why don’t you already post the prices offered to you? That would be a good starting point.

I am quite sure that some prices have already been posted here in the forum. I have the price for the socket in mind at our place. It was €40 per socket or €80 per double socket. Of course, when setting the prices, I had as few double sockets installed as possible. When I read the other prices here in the forum, that was more in the upper price range.

So our local contractor told us: "We do that on the construction site with my electrician, and he then gives ME an offer, which I have to pay... and then you pay that." In plain English: that is negotiated under the table. 40€ per socket? Someone really took a big bite there. Or did you choose a particularly expensive series?

Above all, it’s pointless – one pays a lot properly, the others just don’t... in the end, you have to pay whatever your builder wants from you anyway . Even a printout from the forum doesn’t help...