Which type of house to choose?

Then he should go back to school again

Could you please explain it a bit more thoroughly? I have also always believed that with a ceiling height of 4m, a mezzanine like in the attachment is not feasible.

...yes, I would be grateful for tips then!
Then I might explain it to him once more and maybe he can still do it after all?!

Good evening,

Can you please explain it a bit more thoroughly? I always thought that with a TH of 4m, a setback floor as shown in the attachment is not feasible.

That is wrong.

In §2 of the Lower Saxony Building Code for Lower Saxony it says (by the way, similarly for NRW and many other federal states as well):

(6) An above-ground floor is a floor whose ceiling upper edge protrudes on average more than 1.40m above the ground surface. [...]

(7) 1 - A full floor is an above-ground floor that has a clear height of 2.20 m or more over at least half of its floor area. 2 - A top floor is only a full floor if it has the clear height mentioned in sentence 1 over more than two-thirds of the floor area of the floor below.

This also means that compliance with the TH for the construction of a setback floor (SG) is irrelevant – how could it be otherwise? What counts is the FH. Therefore, if a development plan does not explicitly oppose a setback floor (rare, but it exists), the approving building authority cannot refuse it.

Then I would maybe explain that to him once more and maybe then he can actually do it?!

Honestly? If the guy doesn’t know the simplest basic rules of building law, how is he supposed to sell you a house?

Rhenish greetings from on the road

Honestly, construction expert, you are wrong (also confirmed by courts). Eaves height is calculated separately for each floor, therefore your example is not approval-capable. Unless you have ceiling heights for dwarfs.

Honestly? If the guy doesn’t even know the simplest basic rules of building law, how is he supposed to sell you a house?

Actually, I had total trust in him. I always had the feeling that he knew what he was talking about... He even said something like:
The eaves height, which is set in a development plan, is measured at the upper roof surface of the top floor in the case of a recessed floor. Even if that is not a full floor.

Now I’m unsettled. I’ll bring it up with him... I just don’t understand the paragraphs somehow. But I was always terrible at law anyway.

We have a normal gable roof with approx. 1.65 m knee wall height from the finished floor level – the whole building is single-story (so no bay windows or dormers and a long house) – however, this will be difficult with a ceiling height of 4 m. A mansard roof might be interesting – or as the building expert says, a stepped floor – although this probably also depends somewhat on the federal state where the ceiling height is measured (?). I found, for example, a ruling from Greifswald: