If you have one T on the deeds then it is likely the fence belongs to your neighbour, is it possible to ask them?
If it is theirs you can only offer them some money, you can't force someone to take down the fence if it is on their land. There is no legal requirement to fence one's property in the UK unless you have a dog, pigs etc.
You do ofcourse have the option of fencing your own land, leaving the current fence in place. It is sometimes the best option if you are unable to negociate some sort of deal.
If it is theirs you can only offer them some money, you can't force someone to take down the fence if it is on their land. There is no legal requirement to fence one's property in the UK unless you have a dog, pigs etc.
You do ofcourse have the option of fencing your own land, leaving the current fence in place. It is sometimes the best option if you are unable to negociate some sort of deal.