Floor plan planning shortly before submitting the building application

I also find the contract text ambiguous. You write "hereby" (due to the 201cm?) a 15cm step arises.

Why does the step arise because of a certain door height?
QUOTE]

1. The 15 cm step probably refers to the requirements according to DIN 18195, according to which floor-to-ceiling windows as a form of building waterproofing must have this 15 cm step - or in the case of ground-level exits as an exception, a special design with a drainage channel in front of the exit, which compensates for this analogously. The purpose of both is that the waterproofing is set high enough to withstand water impact and water buildup.
What is wrong with the above formulation is the logical connection "hereby"; it would be correct to say "with a step of 15 cm."

2. In the plan, not in the text, there should be a legend indicating the reference point of all dimensions or providing information about it, usually with the bold note thrown in the blue that all "raw construction measurements must be checked on site."

3. I do not necessarily see a planning error here, since it was built as (erroneously) ordered, so target = actual. Only unfortunately, poor workmanship was mistakenly ordered; possibly, the client was not sufficiently informed about this (a disputed factual question). It is different if the error means no congruence with other building regulations can be established; then there is a deviation from the recognized rules of technology that requires clarification.

4. Assuming no planning error was made since it was erroneously ordered / released, there is also no defect, so no liability of the general contractor follows. In the architect contract, which is not present here, the client must attribute planning errors of his architect, whom he employs as his vicarious agent, upon release.
How it works with the general contractor I have not found quickly. The planning is on the other side, which as the general contractor also owes a "single, functioning house" - but only "as ordered" (exception: duty to inform, see above).

In short:
Check whether a remediation is still technically possible at all and if in doubt, spend money on the remediation. One will not be happy with a passage height of 184 cm.

I just came from the construction site. There is a lot of news.

First of all, the biggest concern was dispelled, that you cannot walk through upright. Despite the low passage height of the window, you really don't hit your head on the threshold without jumping.

The man here is 4-5 cm taller than me:



So I think the biggest concern is thus dispelled.

But it still isn't really nice.

This is roughly how the whole thing will look later (here the utility room):



At the top right you can see a marking where the ceiling height will be when you zoom in (a bit hard to see):


And here again measurements of the window elements:




(the passage height)

What surprised me; the parapet height at the dressing room with the fixed element is according to the work planning 12.5 cm. Measured in the raw construction state, I got 27 cm:



Above the threshold, there are then 201 cm to the top.

Here some more photos of the windows from the house.





Well, what are the options? Difficult! So far I don’t see that it is being built contrary to the contract and contrary to recognized rules of technology. Therefore, a solution could presumably only look like finding an economical and procedural agreement with the general contractor (GU). But that is very difficult.

The unwanted terrace doors are indeed common standard sizes but they are made with laminated safety glass (VSG), with Maco Tronic, in RC2 and with increased sound insulation SK III. This is not something the general contractor can just use on the next project and the window manufacturer will also not take on the matter. Of course, I could offer that they install all the extras free of charge for another builder on top and only charge me the corresponding surcharges for the extras on the old windows as well as the surcharges for the new larger windows, with a generously calculated margin for the whole effort if desired. The problem, I think, will be to regulate the use of the old windows. In the first conversation with the general contractor, they did indicate that they would try to solve it if needed but costs in the five-figure range should be factored in. And whether it makes sense, I doubt.

I was also pointed out that higher elements would no longer fit with the other window lintels. In the utility room, this would actually be the only room where you would immediately notice because there are two windows there. Even in the master bathroom, where there are two windows, it wouldn’t necessarily be disturbing, since one window is largely hidden by an interior wall and there is no common line of sight. So you would have different lintels on the floor but at least the rear side on the upper floor would be uniform.

All in all, I think I have to accept it now. It would still be possible to change everything procedurally but certainly only with unacceptable additional costs.

Despite the low passage height of the window, you really don't hit the top on the threshold without jumping.

Well, what kind of outdoor flooring is supposed to go on the roof terrace?

That will surely also be raised by about 15-20 cm - analogous to the screed simulation inside made of blue EPS as shown in the picture - with wood, tile on battens, etc.

And then you also stand higher there... and crash.

More pictures from the construction site today.

Water on the garage. Should something be done about it?


Apparently, they have noticed that there is something wrong with the parapet height, as already asked a few times.
By the way, here is the photo from the utility room with the ceiling marking. In the photo just now, you cannot see it.

Well, what kind of exterior flooring is supposed to go on the roof terrace? It will surely be elevated, wood tile etc.

But will screed also be applied outside? I don't think so.

The exterior flooring has not been planned yet. It will of course be something as flat as possible now.

Do you have the floor structure of the roof terrace? Normally, a proper insulation is applied on top (even with a slope towards the floor drain), along with the waterproofing. Then the terrace covering, which is laid on pedestal supports, as Otus already mentioned. Not much remains of the threshold after that. We needed about 27cm for our roof terrace floor structure. We used 2cm thick terrace slabs on pedestal supports.