Land division and development

Hello,

we would like to divide the property attached.
My brother wants to renovate the yellow house. We would completely demolish the adjacent barn and want to build the red house new on it.

My question now is how it is with the distance between the houses. Is 1.5m enough if we mutually register a building encumbrance? How much distance must be at least if we do not install windows on the boundary side and provide a fire protection wall? Do we also need a fire protection wall for the yellow old building?

I do not want to build the house exactly straight because south comes vertically from below and we would no longer get sun from the southwest, only from the west...

If we build directly adjoining, does the existing house then also need a fire protection wall? If we only partially demolish the barn in such an angled way and build a new wall inside the barn, could we attach angled to the barn as in picture two?

The red house is 6.3m high roof outer edge, gable height 11.7m regarding distance areas. The yellow existing house is 5.5m outer roof edge height, gable 10.11m.

Can you help me here so that we can split the property sensibly as quickly as possible...

THANK YOU

Hello,

nobody who knows their way around here?

How is anyone supposed to give you helpful instructions here if the most important parameters - which you probably don't have yourself - are missing?

Go to the building planning office responsible for you with your request and have them explain to you under which options you can choose; if a subdivision is agreed to at all.

Kind regards

Am I on the right track here with the setback areas and the 75° orientation? (see attachment)? It would be nice if you could briefly let me know, then I would pass it on to our architect accordingly. Thank you very much for your help

Upper adjacent house height average ground level to roof covering = 4.87m x 0.4 H = 1.948m Lower adjacent house height average ground level to roof covering = 4.8m x 0.4 H = 1.92m

(7) The depth of the setback areas is 1. generally 0.6 of the wall height, 2. in core areas, village areas and special residential areas 0.4 of the wall height, According to sentence 2, windowless exterior walls create a reduced setback of 0.4 H. However, this regulation also favors walls in front of rooms that are not living rooms, e.g. stairwells, corridors, storage rooms, sheds or garages. It does not matter whether these rooms have window openings.

Basically, setback areas must not overlap. The second clause regulates the exceptions: ... this does not apply to 1. exterior walls that stand at an angle of more than 75° to each other,