A 14-year neighbour dispute over a garden fence that reportedly left a couple facing more than £130,000 in court costs has highlighted just how expensive disagreements over seemingly ordinary property issues can become, according to a solicitor. The Essex dispute, which began over the position of a garden fence and boundary between neighbouring homes, eventually escalated into years of legal proceedings.
It was an extreme example of how quickly disagreements over what homeowners can and cannot do on their own land can spiral. But fences are far from the only everyday issue capable of triggering a costly neighbour dispute.
Legal rights over your land
Senior partner and property litigation solicitor Alex Cook of Helix Law is warning homeowners that owning a property does not necessarily give them complete freedom to do as they please within its boundaries. From building an extension and cutting back trees to installing CCTV or changing access arrangements, a number of seemingly routine decisions can, in certain circumstances, give a neighbour legitimate grounds to challenge what you're doing.
Mr Cook said: “People naturally assume that if something is on their land, it is entirely up to them. In reality, English law layers a whole set of neighbour-facing rights and duties on top of ownership, covering everything from shared walls to trees, boundaries, privacy and access. None of this means a neighbour can simply object to anything they dislike, but it does mean there are specific situations where they have a genuine legal basis to challenge what you're doing. As recent cases show, getting these disputes wrong can become extremely expensive, so it pays to know where those lines sit before you start work.”
Five common areas of dispute
Extensions, loft conversions and other significant building work often bring homeowners up against the Party Wall etc. Act 1996, which applies where work affects a wall shared with a neighbour, or involves excavation near their foundations. Under the Act, affected neighbours must usually be given formal written notice before work starts, and they can require a party wall surveyor to be involved if they have concerns.
Separately, a neighbour can object during the planning process itself, and in some cases challenge a completed extension if it turns out to breach planning permission or building regulations. Before starting major work, homeowners should check whether the Party Wall Act applies, confirm what planning permission or permitted development rights actually cover, and give neighbours proper notice rather than relying on a friendly heads-up.
A tree or hedge on a boundary line is not automatically fair game to cut back however a homeowner sees fit. Ownership of the tree itself depends on where its trunk is rooted, not which side the branches happen to overhang, and a neighbour can object if branches or roots are removed in a way that damages a tree they own, or that breaches a Tree Preservation Order or conservation area rules protecting it.
High hedges are covered separately: under the Anti-social Behaviour Act 2003, a neighbour affected by a hedge over two metres tall can, in some circumstances, complain to the local council, which has powers to require it be reduced. Before reaching for the shears, homeowners should establish who owns the tree or hedge, check for any protection order, and only ever cut back growth on their own side of the boundary.
Fences are one of the most common sources of neighbour disputes, largely because boundary lines on title plans are often drawn to a general scale rather than an exact position, leaving genuine room for disagreement over precisely where a boundary sits. Putting up a new fence, replacing an existing one, or changing its height or style can prompt a challenge if a neighbour believes it encroaches onto their land, or if it breaches height restrictions that apply near a highway or in some planning designations.
There is no general legal rule that a boundary must be fenced at all, or that either side is automatically responsible for a particular boundary. Before installing or altering a fence, homeowners should check title deeds and, where there's any doubt, consider a formal boundary survey rather than assuming an existing line is correct.
Home security cameras and video doorbells are treated as purely domestic devices under UK data protection law only while they capture footage within a homeowner's own boundary. The moment a camera's field of view extends into a neighbour's garden, windows or private space, it can fall under UK GDPR and the Data Protection Act 2018, in much the same way as a business-operated system.
A neighbour whose property is captured can ask to see footage of themselves and, in more serious or persistent cases, raise a complaint with the Information Commissioner's Office. Homeowners should angle cameras and doorbells as narrowly as possible towards their own property, use privacy masking where a wider view is unavoidable, and think carefully before enabling audio recording, which is treated as more intrusive than video alone.
Where a neighbour has an established right of way or easement, such as a shared driveway, a path across a garden, or access needed to reach their own property, a homeowner cannot simply block or restrict it because it sits on land they own. Easements are legal rights that run with the land itself, and interfering with one, even unintentionally through new landscaping, gates or parking arrangements, can give a neighbour grounds to take action.
Homeowners should check title deeds for any registered easements or rights of way before changing access arrangements, and be aware that a right can sometimes exist informally, through long-standing use, even where it isn't formally documented.
Avoiding an expensive dispute
Mr Cook's overall message is that most neighbour disputes are avoidable with a small amount of groundwork before a project begins, rather than after a complaint has already been raised.
“The biggest mistake I see is homeowners ploughing ahead and only checking their legal position once a neighbour has already objected,” said Mr Cook. “A short conversation and a bit of paperwork at the start, whether that's a title check, a party wall notice or simply asking a neighbour if a camera angle bothers them, is far cheaper than untangling a dispute once positions have hardened. None of this means a neighbour can block a project just because they don't like it. But where a genuine right or protection is in play, it's far better to know that before you start digging, building or cutting, not after.”
