Neighbor wants to take over setback areas - experiences

This probably counts as 2 buildings and thus the 3m distance is considered maintained.

Otherwise, M4rvin would have had to maintain the 3m distance (from the neighbor) on his property.

If that were the case, the neighbor would not need to take over distance areas.

That you still do not want to understand it, ...

I admittedly did not understand the matter and also did not know that hobby rooms and saunas can be built on the boundary. And why this boundary construction is then only allowed for one neighbor and not both?

Yes, I think that's why we should have signed. That's how I understood it.

Under no circumstances sign. You can't prevent the construction by not signing anyway, you only lose your right to carry out a boundary development in that area yourself if you sign. It was totally wrong tactically for the neighbor to call it a hobby room and sauna. Then they wouldn't have needed the transfer of the distance area.

I admittedly did not understand the situation and did not know that hobby rooms and saunas are allowed to be built on the boundary. And why this boundary construction is allowed for only one neighbor and not both?

Hobby rooms and saunas are precisely not allowed on the boundary. The neighbor has already recognized this. However, since the garage is connected to the hobby room and the sauna, the neighbor requires the transfer of the setback area. As a result, his setback area shifts onto the property of the original poster. Building may then not be allowed on the neighbor's setback area.

Unfortunately, we are actually missing here, who could tell us if it might be possible to mutually transfer the setback area.

Hobby room and sauna are simply not allowed at the boundary. The neighbor has already recognized this. However, since the garage is connected to the hobby room and sauna, the neighbor requires the transfer of the setback area. The consequence is that his setback area shifts onto the property of the original poster. Construction may then possibly not be allowed on the neighbor’s setback area.

Above all, it would have meant for all non-garage or shed buildings that 6 m to the boundary would have to be maintained instead of 3 m.

Phew, luckily we didn’t sign!

Is there anything else to keep in mind? I mean, not that they actually build it the way it "wasn’t allowed" and because we don’t complain, it will be considered as given?
Something similar applies for example to trees/bushes, if they are too close and then grow over 2m, you have to object, otherwise after a few years it’s practically approved by not reporting it. (I hope you know what I mean... :D)