T rees on boundaries are the most common source of neighbour disputes in the UK after parking and noise. The law is more settled than people realise, but it’s also more nuanced. You have a right to prune what crosses onto your land. You don’t have a right to enter your neighbour’s garden. The cuttings legally belong to them. And if the tree is protected, common-law rights take a back seat. This guide walks through where the lines actually sit.
Whose tree is it?
English common law is clear on ownership: a tree belongs to the owner of the land its trunk grows out of, regardless of where the canopy or roots extend. This has been settled since at least the nineteenth century and confirmed repeatedly in case law (Lemmon v Webb [1894] AC 1 being the foundational decision).
The practical implication: if the trunk is on your neighbour’s side of the boundary, the tree is theirs. Theirs to manage, theirs to fell (subject to TPO or Conservation Area consent), and theirs to be liable for if it fails and causes damage. You don’t get a vote on the tree itself, only on what crosses onto your property.
Where the trunk straddles the boundary line itself — a single tree growing exactly on the boundary — the tree is jointly owned. Any work requires both owners’ consent, and decisions about felling or major reduction must be agreed. These cases are uncommon but they do exist, especially with hedgerow trees that have grown up on the line itself.
If the boundary is unclear, the Land Registry title plan is the starting point, though title plans show only general boundaries and don’t resolve disputes to the centimetre. For close calls, a chartered land surveyor is the next step.
The right to abate a nuisance
If your neighbour’s tree overhangs your garden, or its roots are growing under your lawn, you have a common-law right to abate the nuisance. In plain English: you can cut back the bits that are on your side of the boundary.
The rules are narrower than people assume. You can only prune up to the boundary line, not beyond it. You cannot reach over and cut something that’s on your neighbour’s side, even if you can see it from your garden. You cannot enter your neighbour’s land to do the work — doing so is trespass, even if the work itself would be legal from your own side.
The work must also be reasonable. You can’t cut so heavily that you damage the structural integrity of the tree or cause it to fail, because that’s a separate tort — your common-law right to prune doesn’t override your duty not to damage your neighbour’s property. In practice, this means a competent reduction back to the boundary line, with proper pruning cuts that respect the branch collar, not a hack job that leaves stubs and tears.
It’s also good practice (and good neighbours) to tell them before you start. There’s no legal duty to give notice for work strictly on your side, but a quiet word avoids 95% of subsequent arguments.
What you must do with the cuttings
The cuttings from a neighbour’s tree, even cuttings you produced legitimately on your own side, legally belong to your neighbour. Strictly speaking, you must offer them back.
In practice, most people don’t want a pile of brash dumped over the fence — and dumping it over the fence without asking is fly-tipping, which can attract a fixed-penalty notice from the local authority. Many UK councils have published guidance on this; Stoke-on-Trent City Council’s waste guidance is consistent with the general position.
The sensible approach: ask your neighbour, in advance, whether they want the cuttings. If yes, leave them in a tidy heap on their side or yours, by agreement. If no, you dispose of them yourself — either by adding to your garden waste collection (subject to volume limits) or by paying the contractor doing the work to take them away. A reasonable arborist factors this into the quote.
The one situation where you must offer the material back is if it has obvious value — mature timber, fruit, a useful log. Throwing away timber that your neighbour wanted is more contentious than throwing away a pile of leylandii brash. When in doubt, ask.
If the tree is protected
Tree Preservation Orders and Conservation Areas change everything. The protected status overrides the common-law right to prune. You still need formal consent before cutting, even if the branches are over your land and even if your pruning would be otherwise legitimate.
For a TPO’d tree, that means a written application to the local planning authority on form 1AP, with a description of the work and the reasons. The authority has eight weeks to decide. For a Conservation Area tree without an individual TPO, the process is a section 211 notice — a six-week notification giving the council the chance to impose a TPO if they think the work is unjustified.
The penalties for unauthorised work on a protected tree are serious: an unlimited fine on conviction in the Crown Court, or a fine of up to £2,500 on summary conviction in the Magistrates’ Court, plus a duty to replace. "I was only cutting what was on my side" is not a defence — your common-law right to prune doesn’t extend to protected trees.
If you don’t know whether the tree is protected, the council’s TPO map (usually on their planning portal) is the first check. Stoke-on-Trent City Council, Newcastle-under-Lyme Borough Council and Staffordshire Moorlands District Council all publish searchable maps.
High Hedges — the Anti-Social Behaviour Act 2003
If the trouble is a row of evergreens — leylandii most commonly — blocking light, view or reasonable enjoyment, the route is the High Hedges legislation. Part 8 of the Anti-Social Behaviour Act 2003 (sections 65 to 84) gives councils the power to require a hedge to be reduced.
The criteria are specific. The hedge must be: two or more evergreen or semi-evergreen trees or shrubs (a single tree doesn’t qualify); over two metres in height; on land adjoining your domestic property; "adversely affecting" the reasonable enjoyment of your property because of its height. Deciduous hedges, single specimen trees, and hedges separated from your property by a public highway don’t fall within the scope.
The Act requires mediation first. You must show that you have made reasonable attempts to resolve the issue with the hedge owner before the council will accept a complaint. That usually means a written request, ideally with photographs, allowing a sensible period for response.
If that fails, the application goes to the council with a fee, typically in the range of £400–£500 (check Stoke-on-Trent City Council’s current fee schedule, which is reviewed annually). The council assesses whether the criteria are met, and if so can issue a remedial notice requiring the hedge to be reduced to a specified height. Non-compliance is a criminal offence.
The process is slow — typically six months from application to enforcement — and the council cannot order the hedge to be removed entirely, only reduced. Two metres is the threshold below which the Act doesn’t allow them to go.
Subsidence and trees
If your house is showing cracks and you suspect a neighbour’s tree is implicated, the framework is different again. Tree-related subsidence claims in the UK follow the Pre-Action Protocol for Damage to Property Caused by Trees, part of the Civil Procedure Rules.
The sequence: first, a chartered structural engineer or building surveyor inspects the damage and produces a report identifying the cause. If the report points to root-induced clay shrinkage, the next step is usually root sampling under the foundations to confirm species. Only with that evidence does it become reasonable to approach the tree owner.
The protocol then requires a formal notification to the tree owner (or their insurer), setting out the evidence and proposing a course of action — typically that the tree be reduced, pollarded or felled to allow the soil to rehydrate. The tree owner has a defined period to respond.
Most subsidence claims are resolved through insurer-to-insurer negotiation without ever reaching court. The cost of underpinning a property is typically twenty to fifty times the cost of removing the implicated tree, and insurers know it. What matters from a homeowner’s perspective is engaging a chartered surveyor first, and not embarking on root sampling or making accusations to the neighbour before the evidence is in.
When to call a mediator versus a solicitor
Most boundary-tree disputes never need a court. The thresholds we see in North Staffordshire roughly break down like this.
Direct conversation: overhanging branches, light obstruction by deciduous trees, leaves or fruit dropping onto a drive. These resolve in 90% of cases with a knock on the door and a polite request. Bring it up before you’re angry, not after.
Mediation: where direct conversation has failed once and you still need to live next to this person for years. The Royal Institution of Chartered Surveyors operates a Neighbour Dispute Service, and several Staffordshire community mediation services offer low-cost or free sessions. Mediation typically costs £100–£400 per side and resolves issues in weeks rather than years.
Council enforcement: high hedges, suspected TPO breaches, dangerous trees on public-facing boundaries. The council has statutory powers the courts will not duplicate.
Solicitor: tree-related subsidence, alleged trespass causing material damage, situations where you need a formal pre-action letter to focus minds, or where the value at stake clearly justifies the cost. The Pre-Action Protocols require effort to resolve before issue of proceedings, so even a solicitor’s involvement usually means letters and negotiation, not court hearings. The County Court is genuinely the last resort.