If a neighbour says that a strip of your garden, driveway or other land is theirs, do not move the fence or concede ownership immediately. Record the claim, obtain your title register and title plan, locate any filed deeds and conveyancing papers, and compare the documents with the physical evidence. A title plan’s red edging normally shows only the general extent of registered land, not a survey-quality legal line.
Speak to the neighbour if it is safe to do so. If the disagreement continues, obtain advice from a property solicitor and a chartered land surveyor. HM Land Registry can register information and process applications, but it cannot decide, mediate or resolve a boundary dispute.
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First steps when the claim is made
- Write down exactly what was claimed. Note the date, the area involved, the neighbour’s stated basis and any proposed change. Keep copies of letters, messages, photographs and older plans. Preserve existing evidence rather than editing or annotating originals.
- Do not alter the boundary feature yet. Avoid moving a fence, wall, hedge, gate or other marker while the issue is live. HM Land Registry advises speaking to the neighbour before changing a boundary feature.
- Confirm the jurisdiction. The procedure described here is for England and Wales. Scotland and Northern Ireland use different land-registration processes and require jurisdiction-specific advice.
- Arrange advice if the land matters financially or the relationship is deteriorating. A property solicitor can explain the legal effect of deeds and agreements. A chartered land surveyor can assess documentary and physical evidence and prepare a plan where a formal application requires one.
These steps protect the evidence and reduce the chance that a practical disagreement becomes an unnecessary legal confrontation. They do not, by themselves, establish who owns the disputed strip.
Why the red line on a title plan is not the answer
For registered land, the title plan’s red edging generally identifies the land included in the title. It normally shows a general boundary, not an exact line surveyed to centimetre accuracy. HM Land Registry warns against scaling the plan and transferring a measurement to a fence, hedge, wall or other feature on the ground.
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That means a red line appearing to run on one side of a fence does not automatically prove that the fence is in the legally correct position. The plan’s scale, the age and quality of the underlying mapping, and the wording of historical deeds can all matter. Treat the plan as one piece of evidence, not as a ruler.
Read the register, plan and underlying documents together
Obtain the title register and title plan
Order the current title register and title plan for your property and read them together. The register identifies the title and may refer to documents that are not reproduced in full. The plan gives the mapped extent but usually does not resolve a disputed line on its own.
Find documents marked “copy filed”
If the register refers to a deed or other document as “copy filed”, obtain that filed copy through HM Land Registry’s document-request process. A conveyance, transfer or deed plan may contain wording about a boundary, rights, ownership or maintenance that is absent from the register’s short entries.
Search your conveyancing file
Ask the solicitor or licensed conveyancer who handled your purchase for the contract, transfer, replies to enquiries, plans and any pre-completion correspondence still held. Earlier conveyances can be relevant, especially where the current transfer refers to them.
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Check the lease if the property is leasehold
Leaseholders should read the lease and its plans, schedules and variations. The lease may allocate repair or maintenance duties and describe areas that are included in, or excluded from, the demise. A freehold title plan alone may not answer a leasehold question.
Deeds can provide more detail than a title plan, but even a deed plan may not establish the exact legal boundary. If the wording and the ground features remain uncertain, professional interpretation is safer than drawing your own conclusion.
What fences, hedges, walls and T marks can—and cannot—show
The position of fence posts, rails or panels is not a reliable shortcut to ownership. Construction practices, replacement work and later movement can leave a feature away from the legal line. A hedge or wall may have been maintained by one owner without that owner owning all the land on a particular side.
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Look for express deed wording, covenants and any T marks on deed plans. A T mark can be relevant, but it must be interpreted with the accompanying wording and the plan conventions used for that document. A covenant requiring one party to maintain a fence does not automatically establish who owns the fence or the land beside it.
Photograph the feature from both properties and keep dated copies, but do not treat a photograph, smartphone measurement or scaled enlargement of the title plan as conclusive proof. A surveyor can assess how physical evidence fits with the documents.
Talk to the neighbour before choosing a formal route
If it is safe and practical, ask the neighbour to explain the basis for the claim and suggest comparing the relevant documents. Keep the discussion focused on the location, evidence and any immediate maintenance issue. Do not sign a statement, admit that land is theirs, or agree to move a feature without understanding the legal consequences.
Both sides should keep a written record of what was discussed and any temporary arrangement. A conversation may reveal that the disagreement is about maintenance rather than ownership, or that both parties are relying on different historic plans.
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A written boundary agreement
Neighbours can use a written boundary agreement to record an agreed position of an uncertain boundary or to allocate maintenance responsibilities. Obtain legal advice before signing, identify the properties and the feature or coordinates clearly, attach an appropriate plan, and state who will maintain any fence, wall or hedge. Keep the signed document with the title papers.
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A boundary agreement records an agreement; it does not itself sell, give away or convey land. If the proposed line would transfer ownership of a strip from one title to another, a formal conveyance or transfer and registration may be required. A solicitor can distinguish an agreement that fixes an uncertain line from a transaction that changes ownership.
When an agreement is not enough
If the parties cannot agree the line, or if one side will not sign, an informal note cannot bind the disagreement into a final result. Mediation can help willing neighbours explore a settlement, but it does not determine ownership. Professional advice is particularly important where a sale, mortgage, development or access route depends on the disputed area.
Choosing among the available routes
| Route | Cooperation needed | What it is for | Formality and escalation |
|---|---|---|---|
| Informal discussion | Both neighbours participate voluntarily | Clarifying each claim and comparing documents | Least formal; it does not determine title |
| Mediation | Both neighbours must agree to engage | Reaching a practical settlement with a neutral mediator | Settlement-focused; it does not itself determine ownership |
| Written boundary agreement | Both neighbours sign | Recording an agreed uncertain line or maintenance responsibility | Written record, but it cannot convey land |
| Formal transfer and registration | Parties agree to change ownership | Conveying a strip of land from one title to another | Requires formal conveyancing and registration |
| Determined-boundary application | Applicant can apply without consent, but objection is possible | Asking HM Land Registry to record a formally determined boundary for registered land | Evidence-based application; an accepted objection can lead to a tribunal |
The sensible choice depends on whether both owners are willing to cooperate, whether the goal is to record an uncertain line or transfer land, the quality of the documentary and physical evidence, professional and process costs, and the risk of escalation.
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Property solicitor or licensed conveyancer
A property solicitor or licensed conveyancer can read the register, filed deeds, conveyances and covenants; explain whether a proposed document changes ownership; and advise on correspondence, settlement terms and registration. HM Land Registry says its staff cannot give legal advice, so the Registry’s inability to decide the dispute is not a substitute for independent advice.
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Chartered land surveyor
A chartered land surveyor can inspect the site, compare historic plans with occupation features and prepare a plan suitable for a formal application. HM Land Registry’s guidance says a determined-boundary plan will almost always need to be produced by a chartered land surveyor. Give the surveyor the complete documentary bundle, not just a screenshot of the title plan.
Mediation
Mediation may be useful where both neighbours want a negotiated outcome and the core problem is uncertainty or communication. It can produce an agreement about a line or maintenance, but the mediator does not decide who owns the land. Have a solicitor check any resulting agreement, particularly if the arrangement affects ownership, a sale or registration.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What a determined-boundary application involves
A determined boundary is a formal option for a registered property when the owner wants HM Land Registry to record a more specific boundary than the general boundary shown on the title plan. It is not an informal request for the Registry to measure the fence.
- Assemble evidence. Collect the register, title plan, filed deeds, conveyancing papers, lease where relevant, historic plans, photographs and other material that bears on the line.
- Instruct a chartered land surveyor. The surveyor normally investigates the evidence and prepares the plan required for the application.
- Obtain legal advice. A solicitor can assess the strength of the evidence, prepare or review the application and explain the consequences of serving it on the neighbour.
- File the application for the registered property. The retrieved HM Land Registry application page stated a £90 application fee, in addition to surveyor and solicitor charges. Fees and forms can change, so verify the current amount before filing.
- Allow for an objection. If the neighbour objects and the objection is accepted, HM Land Registry gives the parties an opportunity to agree. If they cannot, the matter may be referred to a tribunal.
The Registry warns that applying without the neighbour’s consent can lead to costly proceedings. Consider the value and importance of the land, the evidence available and the financial risk before starting. Less than 1% of registered titles have determined boundaries, according to HM Land Registry’s 24 September 2026 guidance; the Registry says the process is uncommon in part because it can be expensive. That figure is the Registry’s reported share of registers, not a measure of how frequently neighbours argue about boundaries.
What HM Land Registry can and cannot do
HM Land Registry can supply or receive registration documents, process applications and record information when the legal requirements are met. It cannot investigate the facts as a mediator, choose between two neighbours’ competing accounts or resolve the dispute for you. Its public guidance states: “HM Land Registry cannot decide, mediate or resolve boundary disputes between neighbours.”
A refusal or inability to determine the issue at the counter does not prove that either neighbour is right. It means the question requires agreement, professional evidence and, if necessary, the appropriate tribunal or court route.
Common mistakes that make a boundary dispute worse
- Scaling the red edging. A title plan is generally not a precision survey.
- Assuming the fence owner is obvious. Posts, rails and maintenance habits do not automatically establish ownership.
- Relying on one document. Read the register, plan, filed deeds, conveyancing file and lease together.
- Moving the feature first. Altering a fence, wall or hedge can destroy physical evidence and inflame the disagreement.
- Signing an informal “boundary agreement” that actually transfers land. A transfer may require formal conveyancing and registration.
- Expecting the Registry to mediate. HM Land Registry is not a dispute-resolution service.
- Filing without assessing the risk. An opposed determined-boundary application can progress to a tribunal and create substantial professional and process costs.
A practical document checklist
- Current title register and title plan
- Every deed or plan referred to as “copy filed”
- Purchase transfer, earlier conveyances and conveyancing correspondence
- Lease, plans and variations for leasehold property
- Dated photographs and notes about the existing fence, hedge, wall or gate
- Copies of all messages and letters recording the neighbour’s claim
- Any proposed agreement, plan or survey, reviewed by a solicitor before signature
Limits of general guidance
The legal boundary of a particular property depends on its deeds, history, physical evidence and any agreement or formal decision. The public guidance and determined-boundary procedure discussed here concern England and Wales. HM Land Registry describes boundary law as complicated and cannot give advice on the line of an individual property. Use this information to organise the evidence and choose the next professional conversation, not as a substitute for advice on your own title.
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