If your title deeds state a right of access then that would need to be mirrored in the other title deeds to be enforceable. On the assumption that there is an office somewhere where both title deeds are registered then I would suggest you take yourselves there and buy a copy of the other (both if you do not have a copy of your own - actually, better both because then you have a copy of what is registered). Be prepared for having to wade through quite a lot of legalese, but generally anyone with a good command of the language can extract the salient bits. If the other title states that they must provide or allow (the two are not the same - the first can infer maintenance to an acceptable degree) access then that access is not restricted to you alone but includes anyone wanting to get to your property unless it expressly states otherwise. If their deeds do not have your right of access stated but yours do, then that is a matter of, in effect, a conflict in law (the lawyers and/or the registry messed up). If no right of access is stated in either registered version, then I am afraid you are in trouble because then you would need to take the thing to court to try to establish a right of access as a matter of necessity (strictly good lawyer stuff). Unfortunately, while I believe that 90+% of humanity are perfectly decent people, the odd percent exist that are simply unpleasant or worse. What you describe is in my opinion plain bullying and entirely unnecessary whether you have a genuine right to access or not - I cannot see that they gain anything from their behaviour other than ill feeling. You need to be patient in dealing with this and never overstep your rights - assemble your argument quietly and then seek legal advice before proceeding to full blown court dispute - ideally after presenting (a copy of) your argument courteously to the other party. One of your items should be a very detailed diary, preferably daily over two or more months (six months would be excellent). One would hope your neighbours will ultimately see the sense in being amicable, or at least civil and reasonable but a few people are inclined toward disputes and that is simply their nature. Such people sometimes appear to be constantly coiled in order to go on the offensive at the slightest (sometimes made-up) opportunity - sad sorts.