Ceiling suddenly too small for controlled residential ventilation!

Wow. Crisp. There is really hardly any space for anything. The general contractor will have to show their creative side now. A solution can be found.

The general contractor/architect missed it. Bet on it!
A controlled residential ventilation system can be hung from the ceiling. And if you have more height than we do (2.45), it would work great in the TK room.
It doesn't have to be a continuous wall either, the pipes just need to be able to come out somewhere at the top. And then they disappear in the screed.

However, the house is already very "compact." Where are you putting your wardrobe? Where are you putting anything at all?

If the outlets are supposed to be in the upper floor ceiling, then yes. For an exterior wall installation, the walls are too thin.

If the outlets are supposed to be in the upper floor ceiling, then yes. For an exterior wall installation, the walls are too thin.

That's correct. We have drywall walls on the upper floor, so they were installed from below to come out at the top of the wall. With solid walls, of course, it is possible one floor higher.

If the outlets are supposed to be in the upper floor ceiling, then yes.

But that would be an option: controlled residential ventilation, distributor, silencer on the ceiling of the utility room, and the outlets in the upper floor in the floor (or from the upper floor floor up through the interior walls into the upper floor ceiling... but that might cause sound bridges or other problems). The reinforced concrete ceiling ground floor/upper floor must also be stronger than currently planned on average for the controlled residential ventilation; at least 22 cm thickness was needed in our case.

But that would be one possibility: controlled residential ventilation, distributor, silencer on the ceiling of the utility room and the outlets on the upper floor in the floor (or from the floor of the upper floor up the interior walls into the ceiling of the upper floor.. but that might cause sound bridges or other problems).

The concrete ceiling between ground floor and upper floor must also be stronger for the controlled residential ventilation than currently planned on average, in any case we needed at least 22 cm.

Yes, for us it is also consistently 22 cm

The general contractor/architect missed it. Bet on it!
A controlled residential ventilation system can be hung from the ceiling. And if you have more height than we do (2.45), it would work great in the TK room.
It also doesn’t have to be a continuous wall; the pipes just need to be able to exit somewhere at the top. And then they disappear into the screed.

However, the house is already very "grippy." Where will you put your wardrobe? Where will you put anything at all?

The height should actually be around 2.60, but if the ceiling has to be thicker because of the controlled residential ventilation... We'll see what the general contractor says tomorrow!
The wardrobe fits perfectly in the bedroom!

But that would be one option: controlled residential ventilation, distributor, sound damper on the ceiling of the utility room and the outlets on the upper floor in the floor (or from the upper floor floor up the interior walls into the ceiling of the upper floor... but that might cause sound bridges or other problems).

The concrete ceiling between ground floor/upper floor also needs to be stronger for the controlled residential ventilation than currently planned on average; at least 22 cm was needed for us.

I can’t really imagine the floor now... Just a hole with a grille in the floor? A wall would be nicer there.

Do you think a controlled residential ventilation system makes sense there? Or more likely a single-room ventilation and this window rebate ventilation? It really looks like the house isn’t designed for controlled residential ventilation!