Boundary disputes are one of the most common — and most stressful — property issues people face. They can arise over a fence that’s been moved, a hedge that’s been cut back, a wall that’s been built, or simply a disagreement about where one property ends and another begins.
The first thing most people do is check their Land Registry title plan. But here’s what many do not realise: that red line on your title plan does not show the precise legal boundary. Understanding why — and what you can actually do about it — can save you thousands in unnecessary disputes.
Important disclaimer: This guide provides general information about how HM Land Registry handles boundaries. It is not legal advice. If you are involved in a boundary dispute, we recommend seeking advice from a property solicitor who specialises in boundary issues.
1. The General Boundaries Rule Explained
Under Section 60 of the Land Registration Act 2002, the boundary shown on a Land Registry title plan is a “general boundary” unless it has been specifically determined. This means:
The red edging on your title plan shows the approximate position of your property boundary — not the exact legal line. The boundary could actually be slightly inside or outside the line shown on the plan. This is not a flaw or an error; it is by design.
The general boundaries rule exists because title plans are based on Ordnance Survey mapping, which is not intended to show property boundaries with millimetre precision. OS maps are produced for topographic purposes, and their accuracy can vary. In fact, Ordnance Survey acknowledges that the position of features on their maps compared to their actual position on the ground can differ by several metres.
When the boundary is drawn against features like walls, hedges, or fences, the line thickness on the map at 1:1250 scale represents approximately one metre on the ground. This means it is physically impossible for the title plan to show whether the boundary runs along the inside face, outside face, or centre of a boundary feature.
2. What Your Title Plan Does (and Doesn’t) Show
| Your title plan DOES show | Your title plan DOES NOT show |
|---|---|
| The general extent of your registered land | The precise legal boundary line |
| The approximate position of boundaries relative to OS features | Whether a boundary feature (fence, wall, hedge) is yours or your neighbour’s |
| Rights of way and easements (where noted in the register) | Boundary ownership or maintenance responsibility (unless specifically entered) |
| T-marks and H-marks where included in the original deed | Who is responsible for repairs to a shared boundary |
Common misconception: Many people believe that the way a fence is constructed (posts on one side) indicates ownership. There is no legal foundation for this belief. Boundary ownership can only be determined from the title deeds, and even then, it is often unclear.
3. What the Land Registry Can and Can’t Do
What HMLR can do:
- Provide copies of the title register and title plan for both properties
- Provide copies of filed deeds that may contain boundary information
- Process a determined boundary application where the evidence supports it
- Refer disputes to the First-tier Tribunal (Property Chamber) where an objection is raised
What HMLR cannot do:
- Tell you where the exact boundary is — the general boundaries rule means they do not hold this information
- Mediate between neighbours in a boundary dispute
- Make a decision about who owns a disputed strip of land
- Provide legal advice about your boundary situation
- Attend your property to inspect the boundary
4. Boundary Agreements
If you and your neighbour can agree on where the boundary lies, you can formalise this through a boundary agreement. This is usually the simplest, cheapest, and least confrontational option.
A boundary agreement records the position that both parties accept as the boundary line. It does not have to be in writing, though written agreements are strongly recommended. The agreement does not involve any transfer of land — it simply identifies where both parties believe the existing legal boundary already is.
Once agreed, a solicitor can prepare the necessary documentation and submit it to HMLR to be noted on the register. The agreement can deal with the position of the legal boundary, the maintenance of a boundary feature (such as a hedge or fence), or both.
5. Determined Boundary Applications
Where a boundary agreement is not possible, or where you need the boundary to be legally fixed, you can apply to HM Land Registry for a determined boundary under Section 60 of the Land Registration Act 2002.
This is a formal process that results in the exact line of the boundary being recorded on the title plans of both properties. The application is made using form DB and requires:
- A detailed plan showing the exact boundary line claimed, with reference to physical features on the ground
- Evidence supporting the claimed boundary position (deeds, historical plans, measurements)
- Identification of all owners of adjoining land
- A fixed fee payable to HMLR
HMLR will assess whether you have an “arguable case” for the boundary position. If satisfied, they will serve notice on the adjoining owner. If the neighbour agrees, the boundary will be determined and noted on both titles. If the neighbour objects, HMLR will generally refer the matter to the First-tier Tribunal (Property Chamber) for a decision.
Practical note: Determined boundary applications work best where neighbours already agree on the boundary line. If there is a genuine dispute, the application process may force the matter into tribunal proceedings. Consider whether a boundary agreement would be more appropriate.
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Get a Free Quote →6. Types of Boundary Evidence
If a boundary dispute cannot be resolved by agreement, determining the legal boundary position often comes down to evidence. The courts consider various types of evidence, broadly in this order of weight:
- Original pre-registration deeds: The conveyance or transfer that first created the boundary is the primary source. The verbal description and any attached plan form the starting point.
- Physical features on the ground: Walls, hedges, fences, ditches, and other long-standing features often carry significant weight, particularly if they can be traced to the time the boundary was originally established.
- Historical plans and maps: Old deed plans, OS map editions, aerial photographs, and planning application drawings can show the boundary position at different points in time.
- Expert surveyor evidence: A chartered surveyor can measure the ground, compare physical features with deed plans, and provide an expert opinion on the likely boundary position.
- Witness evidence: Testimony from long-standing residents about the historical position of fences or use of land.
The fundamental question the court will consider is: what would a reasonable person think they were buying at the time of the original conveyance, based on the deed and plan?
7. When You Need a Surveyor vs a Solicitor
| You need a surveyor when… | You need a solicitor when… |
|---|---|
| You need the ground measured and compared to deed plans | You need legal advice on the strength of your position |
| A detailed plan is needed for a determined boundary application | You want to negotiate a boundary agreement with your neighbour |
| You need an expert opinion on where physical features relate to old plans | The dispute may lead to tribunal proceedings or court action |
| You need a Land Registry compliant plan prepared for registration | You need the legal documents prepared for a boundary agreement or transfer |
In many cases, you will need both. A surveyor provides the factual, plan-based evidence, while a solicitor handles the legal strategy and documentation.
8. Practical Steps If You Have a Dispute
- Stay calm and communicate: Most boundary disputes are best resolved through conversation. Avoid taking physical action (moving fences, cutting hedges) before establishing the legal position.
- Get copies of your title register and title plan: Download both from GOV.UK (£7 each) — and do the same for your neighbour’s property. This gives you the starting point.
- Check the original deeds: If the title register refers to “filed” deeds, request copies from HMLR. The original conveyance may contain a more detailed plan or verbal description.
- Take photographs: Record the current position of boundary features, including any physical evidence of long-standing boundaries.
- Seek professional advice early: A solicitor specialising in boundary disputes can assess the strength of your position before costs escalate.
- Consider mediation: A professional mediator can help neighbours reach agreement without the cost and stress of tribunal proceedings.
9. Frequently Asked Questions
Does the red line on my title plan show the exact boundary?
No. Under the general boundaries rule, the red edging on a title plan shows the approximate position only. The precise legal boundary is determined by the original deeds, physical features, and other evidence.
Can the Land Registry resolve my boundary dispute?
No. HMLR does not mediate disputes or determine where boundaries lie. They can process determined boundary applications and refer objected cases to the tribunal, but they do not make the decision themselves.
How much does a determined boundary application cost?
HMLR charges a fixed fee for the application itself. However, the total cost includes the surveyor’s fee for preparing the plan and evidence, and potentially solicitor’s fees. If the application is contested, tribunal costs can be significant.
Does the position of fence posts indicate boundary ownership?
No. This is a widespread myth with no legal basis. Boundary ownership can only be established from the title deeds, and even then, many deeds are silent on the matter.
What are T-marks on a title plan?
T-marks indicate responsibility for maintaining a boundary feature. The T points towards the property whose owner is responsible. An H-mark (two T-marks back to back) indicates shared responsibility. These only appear where explicitly stated in the original deeds.
Need a Compliant Plan for a Boundary Matter?
Whether you need a plan for a determined boundary application, a boundary agreement, or simply an accurate record of your property’s extent, Towers Richardson can help. We prepare plans to HMLR standards with a 100% acceptance rate since 1994.
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