One full floor is allowed, 2/3 of the area must be at least 2.30 meters

Full storeys are storeys that protrude on average more than 1.40 m above the street level with the upper edge of the raw ceiling or on average more than 2 m above the ground surface (above-ground storeys) and have a height of at least 2.30 m. The two uppermost storeys are only full storeys if they have this height over more than 2/3 of the storey below. The height of the storeys is measured from the upper edge of the raw ceiling to the upper edge of the raw ceiling of the ceiling above; in the case of storeys with roof surfaces, it is measured to the lower edge of the roof structure.

This is stated in the state building code.

If the attic storey above the entire full storey has a height of max. 2.29 m or if 2/3 are 2.30 m or higher and the other third, for example, starts at 1.90 m and rises to 2.29 m through the roof, would that be allowed or?

I have tried to illustrate the whole thing pictorially in case it helps with understanding.

Thank you very much in advance.

That is stated in the state building code.

Bremen?

Bremen?

Yes.

If the attic above the entire full floor has a height of max. 2.29m or if 2/3 are 2.30m or higher and the other third, for example, starts at 1.90m and rises up to 2.29m through the roof, that would be allowed, right?

You can build it, but the house would practically be uninhabitable, since there is also Par. 47 of the state building code.

Can you build, but the house would practically be uninhabitable because there is also Par. 47 of the state building code.

Correct. The continuous 2.29m are eliminated. However, the second solution should be feasible as long as half of the room lies within the 2/3 area where it is at least 2.30m and rises up to the roof apex.

... if you then correct the ceiling height upstairs again in the ground floor ;) Yes, then the townhouse is legitimate. This is often done when a ground floor bay window is not possible, which would actually be the better solution.