Minimum size for a house connection room

As long as it is still a shell construction, in my opinion that is the best way -> construction stop

And then?

And then?

Such a shell construction is not completely inflexible. Non-load-bearing interior walls can also be torn down again. For example, the one to the guest bathroom. Then the room would already be twice as large. The bathroom could possibly be accommodated elsewhere, although the bathroom is of course a bad example because of the drain pipes. But openings through the exterior wall are also conceivable to bring lines into the house at another location. That’s why it would be good to see the entire plan and the associated piping, lines, etc.

Haven't you received any execution plans?

A shell like this isn't completely inflexible. Non-load-bearing interior walls can still be torn down. For example, the one to the guest bathroom. Then the room would be twice as big. The bathroom could possibly be accommodated elsewhere, although the bathroom is obviously a bad example because of the drain pipes. But breakthroughs through the exterior wall are also conceivable to lead pipes into the house at another point. That's why it would be good to see the entire plan and the associated piping, wiring, etc.

Haven't you received execution plans?

What exactly are we talking about here? The foundation slab including drain pipes and breakthroughs to the outside is already finished, the ground floor is built, and the ground floor ceilings are poured!

Why do you want to have the overall plan? Is the guest bathroom supposed to be on the other side of the foundation slab including core drilling and laying of the drain pipes?

The thing is set! Everything has been fully planned with the general contractor. Should the OP now spend 10k€ or more just so the bathroom takes away living space?

Realistically, it stays like this. Until someone says it’s okay, if not then the general contractor has to come up with something, if necessary at the expense of the OP, because he approved the planning.

And I thought we already had the smallest utility room there is. At least electricians and plumbers get a little bit frustrated. But we're still putting the washing machine in there!

We recently had a case where the building services suddenly did not fit in the intended place after all (was that under the stairs?) and then the general contractor/subcontractor suggested putting it all in the attic?

What are we talking about here? The foundation slab including drainage pipes and openings to the outside is already finished, the ground floor is built and the ground floor ceilings are poured! Why do you want the overall plan? Should the guest WC be moved to the other side of the foundation slab including core drilling and laying of the drainage pipes? The thing is done! Everything is fully planned with the general contractor. Should the OP now spend 10k€ or more so that the WC takes away living space? Realistically, it stays like this. Until someone says it's okay, if not, the general contractor has to come up with something, if necessary at the OP's expense, because he approved the planning.

Well, the OP asks and I answered. If everything fits into the wall cabinet, I wouldn’t change anything either. Of course the pipes are there – I already hinted that it wouldn’t be that easy. We had a similar problem with a drain pipe that then had to take a different route – that worked out as well. And yes, somewhere probably more pipes come down from the upper floor, to which one could possibly connect with a clever re-planning if the WC has to be removed.