Bathroom renovation in house 1979

That could then cause problems, depending on how the screed is constructed. Because you usually have to connect to the shower with a 50mm drain pipe. If this is to be flush with the floor, a drain box is added in the floor. And then you still need a slope in the pipe. That quickly adds up to 100mm depth. Whether the ceiling allows that much remains to be checked. But there are certainly specialists here for that.

I assume that there is no screed under the current shower and bathtub... ultimately it doesn’t matter with your desired layout, since the bathtub is supposed to go back where it is now. Otherwise, you could make use of these holes for wastewater. Well then: behind a partition wall, of course quite a few pipes can disappear, you can also make a pedestal or half-height shelf only on the outside wall by laying pipes in it. For the shower, I would generally make a pedestal from wall to wall, but this idea doesn’t help much for you either, since the wastewater pipe is very likely at the bottom left and thus the route is too long. What is located under the current bathroom? You speak of 2 rooms that you don’t need... isn’t the second room by any chance on the other side of the bathroom? Then you would have the wastewater pipe more centrally located ;) Edit: I forgot the suggestion: break out the screed, then everything works :) Regards

Edit: I forgot the suggestion: chip out the screed, then everything will work :)


Regards

The question here is also how thick the screed is. If it is thick enough, then of course it is perfect.

Even with the screed knocked out, not everything works. For me, the screed had to be removed anyway, but a floor-level shower still could not be installed at the desired location for that reason. My screed was/is 7 cm thick including insulation.

The screed can only be made higher to a limited extent because the door threshold sets a dimension that must be adhered to. As a rule, the new screed is therefore exactly as high as the old one.

Thank you for your many great suggestions and things I need to keep in mind! Unfortunately, it’s not that simple ;)