Judging by the title sheet all of them are shared. That's 3 different neighbours to deal with, lol. Could have been worse, according to the plan we adjoin 6 different gardens!
The lady on the left had already arranged for her nephew to come and fix those ones so we lifted them and moved them as they were squishing our shrubs. The person with the single panel in our garden at the end of the rhs was out there this morning but I hadn't had my breakfast by that point and she was gone when I went out. We put that one in the pile with the others.
The orange one there was no signs of neighbours when we were out, it looked bloody big and heavy and not easy to move and it wasn't in our garden so I left it.
Seems to be someone doing something with it now so I sent Pingu to investigate as I am under a pile of sleeping cats. He's just come in and said neighbour has claimed it as their fence (they built it, might explain why some of the posts appeared to be only decorative haha) so we'll just let them take responsibility.
Weirdly though the same fence which runs between 2 of the neighbouring gardens and has been leaning at a jaunty angle ever since we moved is unchanged.