My next door neighbour did this after she moved in. The previous owner had been a keen gardener and the garden looked beautiful with mature bushes planted along the joint fences which I enjoyed looking at when they flowered. The fence was a bit old but we both grew things against it so you could not really see it.
The new owner got some young inexperienced lads in to clear all the plants and bushes so she could have a new fence put up, one with thin slats parallel to the ground, individually nailed to posts. It’s a real mess, some of the slats have warped, they have not been evenly spaced and I get to see the rough side with nails poking through the wooden posts. In addition the lads attached the upright posts to the existing concrete posts so now I’ll have issues if my old fence, which still stands on my side, needs replacing.
She wanted the fence 8 ft high right the way round her property including the front garden with high electric gates but I pointed out our local planning laws which states fences can be no more than 6 ft high and only 3 ft high along the front on a public road. I pointed this out to her and to the lads building the fence.
i was having my drive replaced at the time so decided to have a low fence installed at the front and side passage at my expense, I discussed it with her and she was happy, even offering to pay half.
I then went away for a week, when I left the back garden fence was 6 ft high, when I got back the lads had added, very badly, an additional 2 ft to the height!
I wasn’t sure what to do, she seemed a nice person to me and I think she had been misled by the project manager of the renovations, he’d taken the final payment but then not spent it on finishing her house so she had to move in with no kitchen and loads of jobs unfinished. It was a very stressful time for her, she had to fight to get the work finished and even now, a year later, there are still jobs unfinished.
i didn’t want to add to her stress as I’ve always got on with my neighbours so I decided to leave the fence issue and let my bushes grow higher to hide the fence. I have a lovely acer tree close to her boundary which I’ve previously pruned each year to keep it a neat shape and not too tall but I might stop pruning her side ( just out of petty spite) as it will then grow and obscure the windows of her extension.
Ironically, she popped round recently to look at my new glass verandah and greatly admired my mature garden with its bushes and thick ground cover - like hers had looked until she had everything dug up! I do wonder if that was actually her decision or if the rogue foreman had done it without her knowledge.