I've just bought a new build house, when we moved in we realised that the developer had fenced a strip of land at the side of our garden off, when we asked why they said it's a wildlife corridor. The boundary on the deeds is the second fence so we immediately on completing took down the internal fence. They are now saying we need to reinstall it or they may contact the council who will Inforce it?! Surely this isn't possible for them to dictate what we do within our boundary. I'll try and attach some pictures if I can work out how to make this a bit clearer