We have recently had new neighbours move in next door. A month ago they said that they would like to replace all of the fences around their garden (sides and back) which includes replacing mine. They said they will pay for this as they want their garden to look uniform. At first I was on board with this, actually quite pleased at the thought of having a brand new fence as mine is quite old, however they have now said they will be replacing my current 4ft fence with a 6ft fence instead.
I have told them I do not want them to replace my fence with anything higher than 4 ft. They’ve now said that in that case, instead of replacing my fence, they will just build another fence against mine in their garden. So basically, I will retain my current fence, then there will be another in their garden, but I will have double fences on my side! Is this even allowed?