It's a civil matter............ See the attached (wrong county etc, but it applies everywhere in the UK)
The house adjoining mine had some plants growing in both the front and the rear gardens, close to my boundaries. The plants grew rapidly and began to approach the size of trees. Looking into it, I discovered they were examples of Japanese Knotweed. This became rather worrying. I approached the owner (in the light of previous experience rather expecting him to be uncooperative), but no, he was reasonable and helpful. Once he realised the nature of the problem with Japanese Knotweed, he and I worked together to cut down the plants and he obtained some special poison to apply to the stumps to kill them off properly. So both our properties are now protected, without altercation or litigation. For a change.
If you have an uncooperative neighbour who has created an issue which puts your property at risk, you can approach your insurance company who will usually assist with the cause, befoe it becomes a claim. In the case of the OP, if he has inurance which covers fencing, then his insurance company should get involved. Interestingly my insurance cover doesn't extend to the actual wooden fence, but it does cover the concrete fence post replacement whether broken or tipped over.
there is a wee article in this months watchtower, awake supplement might help your situation. page 3.
I seem to have mislaid my copy however I take it this is a "love thy neighbour" type anecdote. Any advice in there applicable to my year long moral dilemma of taking action against a neighbour who's exceeded planning and now uses part of that development solely as business premises versus complaining about it and wrecking the life of a family of 4?
Peace has been restored. Neighbour paid for some concrete gravel boards. Whilst I installed them I photographed the shite work their builder had done installing a wooden retaining wall made of off-cuts of wood from other jobs and demolished fences.
I had to leave a note on my neighbours car asking him to stop parking in front of my drive. I didn't have any paper, so I had to use my car key instead
