If i were to look out from the rear of my property to my garden am i responsible for the right hand side fence or the left hand side fence?
I think that's based on the presumption that people build the fence on their own land edging up to the boundary, but it's not definitive.
As I remember it's neither in reality. The border on your deeds is just that. Ultimately who ever put the existing fence up is responsible for it but they could in theory just pull it down and have no obligation to replace it. Further I believe if you neighbour puts up a fence its technically criminal damage if you put a nail in it and you would need to ask permission to paint your side.
Our house deeds have a plan attached that shows the various fence lines in our estate. Fence ownerships are marked with a 'T' symbol. If the 'T' is on our side of the line, the fence is ours and we're responsible for maintaining it.
Is it possible to just put your own fence up regardless? Looking out over our backs there are plenty with ungainly double fences. Especially at the bottoms of gardens backing onto the next block. There's a foot gap between our fence and the fence backing onto us on the next street with a tree no one wants. In our previous property we had a 6x4 piece of land between us and two neighbours on the corner that no one wanted to claim as it was overgrown with Ivy. One neighbour was complaining that it was the others and our responsibility to get rid of the Ivy because it started creeping up their fence. We asked the landlord and he said to let them contact him. The Ivy is still there now.
Yes if you put up a fence within your own boundary then that's fine. As you say it happens a lot at the bottoms of gardens as people want the fence to go all the way round in the same style.
But only if there is a deed referring to the T as denoting ownership. The simple presence of a "T" on a plan is not in itself definitive proof of responsibility.
As far as I know that was always the case ( a reference to the T that is ) My experiences were in the 70’s and 80’s so things may have changed though. I had involvements with the sales of large new housing estates and the conveyancing solicitors acting on both sides.