Who owns the fence between two properties in Ireland?

As with boundary walls, Irish property law does not have a universal default rule (unlike the popular myth of automatic 'left-hand' or 'T-mark' ownership) that decides who owns a dividing fence. The starting point is always the title deeds for both properties, which occasionally include an express statement about which owner is responsible for a particular boundary feature.

Where the deeds do not address it, which is common for fences (as opposed to older stone walls), ownership is usually inferred from practical evidence: who erected the fence, who has paid for its repair and replacement over time, and which side any posts or rails face. A fence can also be treated as jointly owned where both neighbours have historically shared its cost and upkeep, particularly for post-and-wire or timber fencing along a shared boundary.

Because fence ownership determines who can alter, replace or attach items to it, and who is expected to maintain it, it is sensible for neighbours to clarify the position, ideally in writing, before one side carries out works. Ongoing disputes are best addressed informally in the first instance, with legal advice sought if agreement cannot be reached.