Dormer windows according to the new Bavarian building regulations

Hello,

I just spoke with the carpenter, and since he is (still) not up to date, I would like to ask for advice here. Apparently, a new building regulation has been in effect with us since February 1st, and I have already found the passage "The alteration and change of use of attics for residential purposes, including the construction of dormer windows, is exempt from approval." Now I am wondering several things: Does "change for residential purposes" also apply if the floor is already living space? The current situation is as follows: the upper floor is already living space, and bedroom and kitchen share a shed dormer with one window each. The sloping roof is very limiting in terms of use, furniture, etc., so I would like to enlarge the dormer. Of course, I am currently in the process of putting together plans, photos, etc., and I will then approach the municipality, but I like to be prepared. Since I do not currently live there, I am unable to upload pictures, etc., at this time.

Thanks in advance.

Since February 1st, a new building regulation apparently applies to us and I have already found the passage "The alteration and change of use of attics for residential purposes including the construction of dormer windows is exempt from approval." Now I wonder about several things: "Change for residential purposes" - does that also apply if the attic is already living space?

I read this as an intention to promote converting attic space from storage to living space; and for that, no building permit should be required even if the construction of dormer windows is involved. I do not read anything about an extension/enlargement of existing dormers in already residential attic space. This seems rather to be about, as an alternative to urban sprawl/densification in the built-up area, creating additional living space in existing buildings. This sounds less like an ordinary building law amendment and more specifically and typically like an implementation of coalition agreement.