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The Land Registry Official copies is evidence of who owns a property and what rights exist for the benefit of the property. So, the fact that the right of way is shown in your Official Copies is evidence (and the only evidence) that you need to prove that the right of way exists, and the neighbouring owner can not insist on seeing the original Conveyance (the original Conveyance Plan may depict the exact extent of the right of way, but this document is not required to prove evidence that the right exists).
If he were to prevent you using the right of way, you would be entitled to obtain an Injunction against him at Court. This of course would be very expensive, and I would suggest that a sternly written letter from a local Solicitor, would do the trick for you, if the neighbour remains obtrusive.
I hope this assists and sets out the legal position.
Thanks for your reply.
You are correct- I'm afraid you shouldn't remove it, as this may be seen as criminal damage!
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