The short answer
No, not without your permission. If the fence belongs to you (shown by the T-mark pointing into your land on your title plan), it is your property, and a neighbour has no right to attach trellis, brackets, plant ties, lights, hanging baskets or anything else to it. Doing so without consent is interfering with your property and can be treated as trespass to goods. You are entitled to ask them to remove whatever they have fixed and to make good any damage. The neighbour's lawful alternative is to put up their own fence or posts just inside their boundary and attach to those instead.
It often starts innocently: next door wants a bit more privacy or somewhere to train a climbing plant, and your fence is conveniently there. But if the fence is yours, even a few screws are a step they are not entitled to take without asking.
Attaching to a fence at a glance
- Fence is yoursNeighbour needs your permission to attach anything
- Attaching without consentInterfering with your property (trespass to goods)
- Your rightAsk for removal and repair of any damage
- Shared (H-mark) fenceBoth must agree before attaching
- Neighbour's lawful optionAttach to their own fence or posts
A fence you own is yours to control
When the title deeds and T-marks make a boundary fence yours, you own the whole structure. That ownership carries the right to decide what is and is not fixed to it. A neighbour who drills into it, screws on trellis battens, hangs planters, mounts lights, or runs wires along it is altering and using your property without your consent.
This holds even when the addition seems harmless or even improving. The legal point is not whether the trellis looks nice; it is that the neighbour has no right to attach anything to a fence they do not own. If you object, they must remove it. The 'good side faces them' convention does not give them ownership of, or a right to use, the face pointing into their garden.
Why unauthorised attachments are a problem
Beyond the question of permission, there are practical reasons the law protects the fence owner here:
- Damage and water ingress: screws and brackets pierce the timber, letting in moisture and accelerating rot. The owner, not the neighbour, then bears the cost of premature replacement.
- Added load and wind resistance: trellis, climbing plants and heavy baskets increase the surface area and weight the fence carries. In a storm this extra wind load can pull panels loose or topple the fence, again at the owner's expense.
- Structural strain over time: a vigorous climber can warp panels and push posts out of true.
Because the owner carries the maintenance burden and the replacement cost, the law treats unauthorised attachment as a genuine interference rather than a trivial matter, even though most cases are resolved by a conversation rather than a court.
| What the neighbour attaches | Allowed without your consent? |
|---|---|
| Trellis fixed to your fence | No |
| Brackets, hooks, planters, lights | No |
| Climbing plant tied to your fence | No — needs your agreement |
| Their own trellis on their own posts | Yes |
| Anything on a shared (H-mark) fence | Only by mutual agreement |
What a neighbour may attach to a boundary fence. Source: general property law on trespass to goods; Land Registry boundaries guidance.
What to do if they have already attached something
If you discover the neighbour has fixed something to your fence without asking, the calm and effective sequence is:
- Talk first. They may genuinely not realise the fence is yours. Many people assume the fence facing them is theirs. A friendly conversation often ends it.
- Confirm ownership. Check your title plan T-marks so you can show, politely, that the fence is yours and explain your concern about damage.
- Put your request in writing. A short, courteous note asking them to remove the items and make good any holes by an agreed date creates a record.
- Offer a workable alternative. Suggest they erect their own trellis on their own posts just inside their boundary, which solves their need without using your fence.
- Escalate proportionately. If they refuse and the attachment is causing real damage, a mediation service or, as a last resort, legal advice on trespass to goods is available, but the cost rarely justifies it for a few brackets.
The goal is removal and repair, not a feud. A neighbour who attached something in good faith will usually undo it once they understand the position.
The neighbour's lawful alternatives
It helps to be able to point your neighbour toward what they can do, so the conversation is constructive:
- Build their own fence or trellis screen just inside their boundary, on their own land, and attach to that. Two structures a few centimetres apart is perfectly normal and lawful.
- Use free-standing planters or obelisks on their side to support climbers without touching your fence.
- Ask your permission and, if you agree, record the arrangement, including who is responsible if the fixings damage the fence.
If you are happy for them to use your fence, that is entirely your choice; just make the agreement explicit so a future dispute, or a future change of neighbour, does not reopen it.
What about a shared fence?
Where the boundary is a shared or party fence (an H-mark on the title plan), neither owner can attach things unilaterally, because both have an interest in the whole structure. If your neighbour wants to fix trellis to a shared fence, they need your agreement, just as you would need theirs. The fairest approach is to discuss any addition that affects the shared structure, agree who bears the cost of repair if the fixings cause damage, and record the decision. Treating a shared fence as jointly controlled avoids the most common shared-boundary arguments.
Frequently asked questions
My neighbour fixed trellis to my fence without asking — can I make them take it down?
Yes. If the fence is yours, the neighbour has no right to attach anything to it without your consent. You can ask them to remove the trellis and make good any holes. Start with a friendly conversation, confirm ownership from your title plan, and put the request in writing if needed.
Can my neighbour grow a climbing plant up my fence?
Not without your permission, if the fence is yours. Tying a climber to your fence uses your property and can add wind load and moisture damage. They should grow climbers on their own trellis or supports, just inside their boundary, rather than against a fence you own.
Can I attach things to a fence I share with my neighbour?
Only by agreement. A shared or party fence (shown by an H-mark) belongs to both owners, so neither can attach trellis, lights or planters to it unilaterally. Discuss it, agree who is responsible if the fixings cause damage, and record the decision.
Sources & further reading
- GOV.UK — disagreements about property boundaries
- HM Land Registry — practice guide 40: boundaries
- Citizens Advice — problems with neighbours
Figures on this page are typical UK ranges drawn from published sources and depend on your specific garden. They are guidance, not a quotation.