How many power sockets do you have? Do we need more?

Network? You always need it everywhere – at least one double socket in every room and hallway, then you're already at over 30, then some rooms need more, then the garage/carport and terrace/garden. Then you quickly get to 44 – besides, I hate Wi-Fi, but unfortunately I still need it...

Around 80 are too few! But I do not tend to exaggerate

In the children's rooms (~15 m²) there are, for example, 7 sockets (1x single, 3x double)

For PC with printer and monitor, in my opinion, one socket is enough, with a 3-way splitter connected to it, but also pay attention to table lamps (bed, desk, possibly floor lamp). Also, in every corner 1 to 2... already said it: children's rooms need to be adaptable.

The living room has 12 sockets (+ phone and TV)

That seems about right

the kitchen 10 (including appliance connections)

Depends on the appliances: stove, oven, extractor hood, kitchen island, fridge, steam cooker, waste disposal unit, kettle, kitchen multi-function device... and then 2 working sockets on the walls each. I would say: when I take out my mixer, and I don't operate so many more technical devices at the same time, but it should be flexibly connectable at different corners.

2 laptop cables, phone charging, vacuum cleaner,

Do you have that in the living room? I would reserve a range of sockets at work height in the utility room for charging of any kind (window cleaner, Kärcher, lawn mower, phone battery, handheld vacuum, etc.)

For vacuuming you use the working sockets, which should ideally not be planned under the light switches. Warning: every room is planned with such a socket, which you don't actually need there. We almost all removed them because a central one is enough for us.

How much does such a socket cost extra?

Negotiate that with the electrician - he is definitely cheaper than your general contractor

Since I'm asking here anyway: is one ceiling outlet enough for e.g. the children's rooms, or should you have 2 or another on the wall?

We have planned several wall outlets for spots and indirect lighting, also in the bathroom as accent lighting (unfortunately not finished yet)

There is a nice description online on how to proceed, light on, light off, also the symbols are explained, color-coded between outlet, switch, and light switch etc... I once had it, I'll look for it...

Regards Yvonne

Edit: LAN and satellite in every living or bedroom

85 units for 190 sqm seem very few to me.

In my newly built 3-room rental apartment with 66 sqm, I have according to my needs

[*]about 45 sockets in the living room/office/bedroom/bathroom/hallway and storage room, including one in every window for Christmas lights or a small nice lamp. In every room, really at least 1 socket in every corner, often double sockets. LAN and TV connections in all rooms (except bathroom and storage room).
[*]in addition, in the kitchen (8 sqm) around 13 sockets plus 3 separately fused sockets for dishwasher, oven (here I recommend at least 2 of this kind, because you never know how cooking habits will develop in the future. I’m just saying steam cooker) and stove socket.
[*]I had ceiling light outlets installed according to the planned furniture layout
[*]some sockets or ceiling outlets are linked with two-way switches, so I can turn them on or off from different places, e.g. bedroom, but also kitchen and living room.
[*]the hallway light has a motion detector
[*]for the terrace I have 4 more sockets, TV socket (washing machine or something ), ceiling outlet in the covered terrace section as well as 2 switches for lights and sockets and additionally a switch to control the light from inside as well.

Thank you Yvonne, the link would be helpful I think
We just planned it out for ourselves and ended up with a total of 85 sockets (although distributed somewhat differently than in the BL) and 14 LAN outlets. However, what we have significantly more of than offered are light switches. We will now try to fit in a few more sockets. I'm curious to see what the electrician says about that.
By the way: we currently have 25 units in our 70 sqm – we haven't died yet either (in the living room there are just multiple sockets)

By the way, we have a socket in the living room coupled with a switch. A power strip with TV, receiver, etc. is connected to this socket. When we go to bed, we only turn off the switch at the door.

We have planned that too - better than a master-slave strip

I find and found electrical planning the most complex so far. On the shell construction it is completely different from the plan...