Thanks for your enquiry.
Firstly, someone would have to show that they have had unrestricted and uninterrupted use of the access for 20 years, before they can claim a prescriptive right.
The fact that the gates are locked, even if not for the whole year, is going to prevent any such person claiming that they have had "unrestricted" use.
You therefore have very little to worry about, but if possible, a simple sign saying "private property-no public access" would back up your position in the highly unlikely event of someone trying to claim a prescriptive right.
I hope this answers your question, and if so, I would be grateful if you could leave positive feedback.
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