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Unfortunately there are no measurements on the plan and the neighbour is trying to claim that the ROW should be about 22 feet wide but only our part of it.
The drive extends through one neighbours land, into our land and across to this difficult neighbours land. Our difficult neighbour does not seem concerned about the first part of the drive (which is on the land of our other neighbour) only the part on our land. The original owner/builder of the difficult neighbours property had an 8' wide gate flanked by brick walls on either side so even if the ROW had been wider (which we don't think it was) it could only be accessed through an 8' wide gateway.
The difficult neighbour installed a huge gateway (yes, you've guessed, about 22' wide) about 6 years ago and now seems intent on trying to bully us into changing our garden to suit this gateway.