Height of the fence to the neighbor and windows in the boundary construction

uh... What kind of answer is that???

I just want to know if she is allowed to build the ugly wall. Completely independent of whether the neighbor is nice or not.

And no, you can't choose a building plot around here but have to thank the gentleman on your knees if you even get one.

Presumably self-supporting in front, yes. You won't break anything. I wouldn't do straps or cladding. I'm also not sure if that is allowed.

Yes, self-supporting, of course. As I said: like a garage wall, just without a garage. But is there a filling material between the walls? Somehow it has to be sealed, because, as I said, there is no rain gutter, the water would flow between the two walls, and that can't be healthy.

It is certainly a question of how much edge development you already have. Is there already anywhere 9m on the boundary?

...and just off the top of my head: Do you have different plot parts or different parcel numbers at the corner? (Because of the 9m boundary construction)

Yes, self-supporting, of course. As I said: like a garage wall, just without a garage.

When it comes to boundary construction, it concerns the exterior walls of buildings. A wall, on the other hand, is generally a enclosure and is therefore not covered by the 9m privilege. Check your development plan or state building code to see what is allowed as an enclosure or simply place a building (garden house, shed, etc.) in front of the garage – this way you should be allowed to build higher compared to a wall (typically the maximum is 180 cm).