Pretext in the bathroom on the upper floor directly next to the window

Dear forum members,

our house seller has recommended an empty conduit from the HAR to the attic in order to later pull a cable for photovoltaics through it.
This empty conduit runs on the upper floor right next to the bathroom window, alongside other pipes such as the heating exhaust, so it will be a larger pre-wall installation. I just wonder if it looks good when the pre-wall comes (almost) up to the window opening or if it would be better to do without the empty conduit. That would provide 20 cm more space to the exhaust pipe.
Attached is the construction drawing.

Thank you in advance.

I would rather worry about how the tiles behave that possibly go around the corner into the window area. Then I’d just pull the thing all the way to the window jamb to have a flat surface and not constantly have to patch it up. I really looked at the floor plan for a few minutes and desperately tried to figure out what kind of strange "ventilation thing" is supposed to be in the bedroom. Then it dawned on me – that was the zigzag bar with the chimney in the middle of the room. So this is the result. Mh. *liebernüschtsag*

The wall doesn't work anyway, where should the washbasins go with 12.5cm of water and wastewater? So this has to be changed anyway and the shaft can then be integrated into the wall. For photovoltaics, by the way, a 32 or at most 40mm conduit is needed, which can just be laid into any wall, no corner or shaft is needed.

For photovoltaics, by the way, you need a 32 or at most 40 conduit,

It is a matter of technology and dimension. We have planned a 100 conduit for photovoltaics and it should not be much less. With a 40 conduit we wouldn’t stand a chance.

I just wonder if it looks good when the partition wall reaches (almost) up to the window opening or if it’s better to do without the conduit.

The alternative is not "there or not at all". You can also lay the cables in there right away or find another location.

I would rather worry about how it works with the tiles that possibly go around the corner into the window area. Then I'd rather just extend the whole thing up to the window reveal to have a straight surface and not have to patch it up all the time.

I really looked at the floor plan for a few minutes and desperately wondered what kind of strange "ventilation thing" was supposed to appear in the bedroom. Then it dawned on me - that was the zigzag bar with the chimney in the middle of the room. So that's the result. Mh. *prefers not to say*

I also thought about extending it straight to the window. At least that way there is a reasonable edge.

I'm actually quite satisfied with the bedroom, the door hits that spot anyway and next to it there is enough space for a long wardrobe. The stove fitter was quite enthusiastic about the "niche" in the living room for the chimney/fireplace, so the stove doesn't protrude far into the room and the resulting "built-in shelf" probably looks good too.

The wall doesn’t work anyway, where are the water supply and drainage for the washbasins supposed to go with 12.5cm? So you have to change that anyway and can then integrate this shaft into the wall.
By the way, for photovoltaics you need a 32 or at most 40 mm conduit, which can simply be laid into any wall, no corner or shaft is needed.

You mean the wall with the washbasins now? I suppose a pre-wall installation will be added there if necessary, for water supply and drainage. It’s just not shown on the plan.

Of course, the conduit also has to work from the HAR in the ground floor, maybe there is still another position for that.