Posted: 14/12/2015 at 15:00
Sounds odd to me.
We only have one fence around our garden - on the left hand side and the rear boundary we erected and maintain the fence and on the right hand side that neighbour erected one (when the previous one blew down) and he maintains it.
Most gardens only have one fence around the boundary.
How is your neighbour going to maintain his fence if you have another fence butting up against it? Sounds a bit 'fence obsessive' to me.
Perhaps a case for the Citizens' Advice Bureau - a written response from them might be helpful.