Building law: 2nd emergency exit from attic (hip roof)

Hello,

in a 3-family house, built in 2013, the attic was converted differently than in the building permit (the upper floor and attic are each 2 maisonette apartments).
The building permit planned a gallery, which I would consider permissible as an "installation within the room".
However, in execution, the attic was fully constructed as a separate floor (including 2 rooms + bathroom). It is a hipped roof with a 23° pitch. At the double casement windows in the attic, no rescue platforms are present.



Can someone here confirm or deny my opinion (not permissible)?

What are rescue platforms for? I know it is okay as long as the fire department can reach it with the ladder (status 2016 in NRW. Source: Feuerwehr NRW at their own building).

Is there a standard for this? Or does it depend on which fire truck the municipality currently has in operation?

I know it is okay as long as the fire department can reach with the ladder

But I believe only if the edge of the double casement window is horizontally one meter away from the roof edge and the knee wall is less than 90 cm. Otherwise, a step must be placed in front of the window corresponding to this 1 m distance.

It probably has to do with how you can make yourself noticeable. If the distance is too great, you cannot be seen from below.

The federal state will probably also be decisive.

For occupancy units according to paragraph 1 that are not located on the ground floor, the first escape route must lead via a necessary staircase. The second escape route can be another necessary staircase or a location of the occupancy unit accessible by fire department rescue equipment. Windows serving as escape routes according to § 33 para. 2 sentence 2 must have a clear opening of at least 0.90 m x 1.20 m and be positioned no higher than 1.20 m above the finished floor surface. If these windows are located in sloping roofs or roof structures, their lower edge or a projecting element in front of them may not be horizontally more than 1 m away from the eaves edge.

==> This applies in Saxony.

Hmm. It is 2.8m to the eaves edge. So probably not permitted. Therefore, probably approved differently than built.