When the road was built, around 15 years ago, part of the planning permission was that a strip of land had to be left down the side of the road with a larger area at the end of the road as a wildlife refuge for a protected species. It is on all the plans of the road.
A fence runs down both sides of this strip of land, so it is clear where the boundary of the gardens is. At the end of the road, where there is a larger area of protected ground, there is a gate through to this area from the neighbours drive. Other neighbours used to check their garden cuttings into this area, so he put a padlock on the gate (or at least, that's why I assume he did...)
The larger area of protected land is adjacent to neighbours drive, house and garden.
The neighbour has now put his house up for sale and included in the particulars are this wildlife area, listed as an additional plot of land to the side. But HE DOESN'T OWN IT! It's a wildlife area and not his. You can't just randomly grab a piece of land, can you?
What can I do about it? I bet the other neighbours whose gardens also back onto this patch of land don't know about it and wouldn't agree to it.
I am so cross that he is trying to sell the wildlife area.