I would definitely get the council involved. I take it a for sale sign will be going up in the near future. I would try and talk to the developer and explain the situation and get him to move the fence back. If he doesn't he might find it difficult to sell the house if there is a dispute going on.
Is this the only way to access the field with the combine? Things will be very difficult if it is.
Is this the only way to access the field with the combine? Things will be very difficult if it is.