Selling a House With a Boundary Dispute: UK Guide 2026

By Lisa Hayes · 8 November 2026

Yes, you can sell a house with a boundary dispute, but you must tell the buyer about it, and the dispute will shape who buys and at what price. Mortgage buyers and their solicitors tend to walk away from an open argument over land, while cash buyers will usually proceed if the price reflects the risk. The cleanest route is to settle it in writing before you list, and the next best is to disclose it fully and sell to someone who can live with it.

I have watched perfectly sellable houses stall for months over a strip of land that nobody wanted to mow. The legal position is less frightening than it feels from the inside, but the process is slow, and buyers do not wait politely. So this guide walks through everything you are likely to ask, in roughly the order you will ask it.

• £90HM Land Registry fee for a determined boundary application (surveyor and solicitor on top)
• 10 yearsof reasonable belief of ownership relevant to a registered-land adverse possession claim
• 26 Feb 2025Brown v Ridley, the Supreme Court ruling on that ten-year point

What counts as a boundary dispute when you are selling?

A boundary dispute is any disagreement with a neighbour, or a landowner behind you, about where your land stops and theirs starts. Or about who owns, or must maintain, the thing sitting on that line: a fence, wall, hedge, hedge-and-ditch, shared driveway edge or the gutter that overhangs the other side.

They come in a handful of familiar shapes:

• The moved fence. A previous owner, or the neighbour, replaced a fence a foot over the old line some years ago and nobody objected at the time.
• The plan that does not match the ground. The title plan shows one thing, the deeds another, and the garden a third.
• The extension that crosses over. Foundations, a gutter or an eave project onto the neighbour's land, or theirs onto yours.
• The tree and hedge row. Roots, height, or arguments over whose hedge it is. High hedge complaints have their own route through the local council under the Anti-social Behaviour Act 2003.
• Shared access. A driveway, passage or parking strip where ownership and rights are tangled together. Our guide to selling a house with a shared driveway goes deeper on that one.

A disagreement that has been settled does not vanish from the sale. It still goes on the form, but as a resolved matter with a paper trail, which is a very different thing to a live row.

Where does my boundary actually lie? What the Land Registry plan does and does not tell you

Here is the fact that surprises almost everyone. The red line on your title plan is not a survey. GOV.UK says it plainly: "Most title plans do not show exact boundaries", and you usually do not need the exact boundaries recorded anywhere (GOV.UK: your property boundaries). The Land Registry works on the general boundaries rule. The plan shows roughly where the edge is, usually following a physical feature on the Ordnance Survey map, without fixing it to the inch.

That is fine until two people disagree about a foot of lawn. Then you need evidence, and the evidence comes from several places, none of which is automatically conclusive:

1. The title plan and register. Download both from the Land Registry for a few pounds. They show the general position.
2. The original conveyance or transfer deed. Older deeds sometimes carry a measured plan, and sometimes a "T mark" on one side of a boundary. The T-mark usually points to the party responsible for maintaining it. It is a clue about who looks after the fence, not proof of who owns the soil.
3. Old Ordnance Survey maps and aerial photographs. Useful for showing where a hedge or wall stood decades ago.
4. The physical features. Walls, ditches, mature hedges, the age of posts.
5. Witness evidence. A previous owner's statement that the fence has stood there since they moved in can carry real weight.

Do I have to tell a buyer about a boundary dispute?

Yes. This is the question where I will be blunt, because the temptation to stay quiet is real and the consequences are disproportionate.

The TA6 Property Information Form has a boundaries section and a separate disputes section. The Law Society's explanatory notes tell sellers that if they know the boundaries have been changed they should share details, that if they are unsure who is responsible they should answer "not known", and that buyers will want to know about disputes between neighbours, past or current, including issues where nothing has yet been said or done (Law Society: TA6 6th edition explanatory notes). The same notes warn that misleading information can leave the buyer able to claim compensation after completion.

In practice that means:

• Answer the form truthfully. "Not known" is an acceptable answer if you really do not know. A confident wrong answer is not.
• Do not rely on the buyer not finding out. Neighbours talk to new owners within days. A surveyor sometimes spots a fence that does not match the plan. Local searches and the agent's own enquiries can surface it.
• Remember the agent's duty too. Estate agents have to give buyers material information, and an agent who knows about a dispute and says nothing is exposed. A good one will want to know.

After completion, a buyer who was misled may bring a misrepresentation or breach of contract claim. Remedies can include damages, and in a serious case rescission, meaning the sale is unwound. You do not want that conversation, especially once the money has been spent. Our full walk-through of the form is in the TA6 guide, and the wider question of when neighbour friction must be declared is covered in do you have to declare a neighbour dispute when selling.

Can I sell while the dispute is still going on?

Legally, yes. Nothing stops you marketing a house with an open boundary row. The practical reality is harsher.

A mortgage lender's valuer and solicitor will want clear title to what they are lending against. If the boundary is contested, the solicitor will raise enquiries, the lender may ask for a retention or a resolution, and the buyer, who has paid for searches and a survey, usually decides it is not worth the risk. I have seen this kill sales at the eleventh hour after weeks of work. That is not a failing of your house. It is how risk-averse conveyancing is.

If you can resolve it first, you widen the pool again. If you cannot, plan for the narrower pool honestly rather than hoping the next viewer will not ask.

How do I settle a boundary dispute before selling?

Move in this order. Cheap and cooperative first, formal last.

1. Gather your evidence. Title plan, deeds, old photographs, anything showing where the line has been. Do it before you speak to the neighbour so the conversation is about facts.
2. Talk to the neighbour. Not a letter first. A calm conversation, ideally framed as "I'm selling and need this tidied up". People often cooperate when they see the problem is time-limited.
3. Get a boundary surveyor if the facts are unclear. A chartered land surveyor can map the ground against the records. Ask for fee quotes up front, as the cost depends on the plot and the work needed.
4. Try mediation. A neutral third party costs far less than court and tends to be quicker. Both sides need to be willing to turn up.
5. Record any agreement in writing. A handshake on the doorstep does not bind the next owner and will not satisfy a buyer's solicitor.
6. Go formal only if you must. A determined boundary application, or a court or tribunal route, is the last rung, not the first.

GOV.UK's guidance on resolving neighbour disputes is a sensible starting point if conversation has failed, and it sets out the mediation route alongside what the council can and cannot do.

What is a boundary agreement, and should I get one?

A boundary agreement is a signed document between you and your neighbour that records where the line is, ideally with a plan prepared by a surveyor. The Land Registry recognises these. Done properly, it gives a buyer's solicitor exactly what they are looking for: a clear answer, signed by the person who might otherwise object.

I would get one whenever the neighbour is cooperative, even if there is no active row. It is cheap insurance. Two things matter:

• It should be a proper legal document, drawn up by a solicitor, with a measured plan attached.
• It must be signed by everyone with an interest, so if the neighbour has a mortgage, their lender's position may need checking too.

What is a determined boundary, and how much does it cost?

If your property is registered, you can ask HM Land Registry to record the exact line. GOV.UK says the application fee is £90, and that you also pay the surveyor and the solicitor, so the real cost is considerably higher than the form fee (GOV.UK: apply for a determined boundary).

The application needs a completed DB form, evidence supporting your case and a plan of the boundary prepared by a chartered land surveyor. Evidence can include certified copies of pre-registration deeds, an expert's report, or a statement signed before a solicitor, magistrate or commissioner for oaths.

What happens next depends on the neighbour:

• They agree. They sign the form and plan, and the exact boundary is recorded.
• They object. Land Registry decides whether the objection is valid and may give the parties a chance to agree. If that fails, the application goes to a tribunal. You may then need legal and surveying advice, and if you lose you may pay your neighbour's costs.

A determined boundary stays valid when either of you sells, which is the whole attraction for a seller: the answer travels with the land. The honest caveat is time. If a tribunal gets involved, you are looking at months, not weeks, and that is not a route for someone who needs to move this quarter.

What if the neighbour says they have owned my strip of land for years?

This is adverse possession, and it is the reason I tell sellers not to ignore a boundary encroachment on the basis that it is "only a few feet".

For registered land, the rules in Schedule 6 of the Land Registration Act 2002 let someone who has occupied land for ten years apply to be registered as owner. The registered owner is notified and can object, and in most cases that objection defeats the application. But there are narrow exceptions, and one of them is where the applicant reasonably believed the land was theirs for at least ten years. In Brown v Ridley, decided by the Supreme Court on 26 February 2025, the court held that the ten years of reasonable belief must fall within the adverse possession period but need not be the ten years immediately before the application (Supreme Court: UKSC 2024/0044). That helped the neighbours who had been using the land. Where the land is unregistered, a longer 12-year period applies under the older Limitation Act rules.

What does this mean for you as a seller? Two things. First, if someone has been using a strip of your garden and you have never objected, a buyer's solicitor will see a risk to the title. Second, if you have been using a bit of theirs, you may have a claim that strengthens the longer you wait, but you should take legal advice before relying on it. This is complex, and general information is no substitute for a property solicitor looking at your actual facts.

What if my neighbour has built over the boundary, or I have?

Structures across the line fall into three groups. Overhanging eaves and gutters are the mild end. TA6 specifically asks sellers to share details of features that project over a boundary. Foundations crossing the line are more serious, because they can amount to a trespass the neighbour may eventually seek to have removed. An extension built hard against the boundary may also involve the Party Wall etc. Act 1996, which requires notices for certain work near or on the line. Sellers are expected to supply any notices they served or received.

If you did the work and cannot find the paperwork, our guide to selling a house with no party wall agreement covers how solicitors usually handle that gap, and indemnity insurance is sometimes offered for missing paperwork. Note the catch: insurers generally will not cover a dispute that has already been raised. Indemnity cover is for a risk nobody has shouted about yet, not for the argument already in progress.

Will a boundary dispute reduce the value of my home?

Almost certainly, if it is open and the buyer knows. I will not invent a percentage because it depends on how big the disputed strip is, whether it carries a driveway, a garage or the only route to the back garden, and how likely the neighbour is to dig in. But the logic is simple. The buyer is taking on both the problem and the cost of resolving it, and they will ask for a discount that covers the downside case.

The cheapest way to get a sense of where you stand is to run a free house valuation and then ask an agent, plainly, what they think the dispute does to the price. If you want to see how the figure is reached, how much is my house worth explains the approach.

What are my options if the dispute will not be resolved?

When the neighbour will not engage, the time is short, or the cost of fixing it exceeds the cost of selling at a discount, you have three realistic choices.

1. Fix it anyway and sell on the open market. Right if you have the time and the neighbour is at least responsive.
2. Sell with the dispute disclosed, at a lower asking price. Right if the amount of land is small and the buyer pool is broad enough. Be ready for a down-valuation if the lender's valuer flags the issue.
3. Sell to a cash buyer. Right if you need certainty and speed. A cash house buyer does not depend on a lender's solicitor being satisfied, so an open boundary question is a pricing point, not a deal-breaker. You will normally take a lower figure than a perfect-title sale, and you should compare several offers rather than accepting the first. Our guide on the best house buying companies shows how to vet them, and selling an unsellable house covers the harder cases.

How do I stop a boundary problem blowing up the sale?

Preparation beats damage control. Before you list:

• Download your title register and plan and read them for anything odd.
• Walk the boundary and compare it to the plan. If a fence has moved, you want to know now.
• Find your deeds, any boundary agreement, and any Party Wall notices.
• Fill in the TA6 early and honestly, and tell your solicitor about anything you are unsure of.
• If a dispute exists, agree with your agent how it will be described to viewers so buyers hear it from you first.

Early disclosure sounds like it will frighten buyers off. In my experience it does the opposite for the buyers worth having. They respect a straight answer and they have the information to price it. The ones who vanish would have vanished later, after you had paid for searches.

What does a buyer's solicitor look for on boundaries?

Your buyer's solicitor will read the title plan against the TA6, raise enquiries if there is any mismatch, and check whether anything mentioned in the form appears in the Land Registry documents. They are looking for four things: a consistent description of who owns and looks after each boundary; no unexplained changes; any Party Wall paperwork if there has been building work near the line; and no sign of a live argument. If any of these is missing or muddy, expect enquiries, and expect them to take time.

You can speed things up by answering with documents rather than assertions. A copy of the boundary agreement, the surveyor's plan, or the neighbour's signed confirmation will close a line of enquiry in one email.

How do boundary disputes interact with trees, hedges and rights of way?

They overlap more than people realise. A hedge on the line can be jointly owned or belong to one side, and a protected tree can restrict what either of you may do. If a tree on or near the boundary has a preservation order, our TPO guide explains what a seller has to declare. A boundary row also often hides a right of way argument: whether someone has a lawful right to cross your land to reach theirs. That is its own legal subject, covered in selling a house with a right of way. If you are unsure which problem you have, a short session with a property solicitor is money well spent, because the answer changes what you disclose and how you price.

What does it cost, and who pays?

You pay for your own evidence and advice, whichever route you take. Typical items on the list are the title documents, a chartered land surveyor's plan, solicitor's fees for the agreement or application, and mediation costs. For a determined boundary application the Land Registry fee is £90 per GOV.UK, and the surveyor and solicitor are extra. If a contested application ends up before a tribunal and you lose, you may pay your neighbour's costs. Budget with a margin, and get quotes before you commit rather than discovering the bill halfway through.

A sensible way to decide

Ask yourself three questions. How big is the disputed area and what does it carry? How cooperative is the neighbour? And how soon do you need to move? Small area, friendly neighbour, plenty of time: sort it on paper, then list. Large area or hostile neighbour or a firm deadline: disclose, price realistically and test the market with someone who does not need the title to be perfect.

If that second description sounds like you, it is worth seeing what the market will actually pay. Compare offers through Ready Steady Sell and you will see the range from different buyers, with no obligation, so you can weigh a quick sale against the cost and delay of fighting it out. If you want the wider picture on moving quickly, start with our guide to selling your house fast.

This guide gives general information, not legal advice. Boundary law turns on the facts of each case, so speak to a property solicitor before you rely on any of it.