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Written by Brad Askew
Legal Tech Founder
Civil & Commercial Law background · Founder of LegalDocuments.co.uk
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Updated April 2026 · England & Wales
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Commercial Property
BA
Written by Brad Askew Legal Tech Founder
Civil & Commercial Law background · Founder of LegalDocuments.co.uk
Updated May 2026
·
England & Wales
Boundary disputes on commercial property have a habit of surfacing at the worst possible moment: when you're extending a warehouse, refinancing a site, or trying to sell a unit to an incoming tenant. What looks like a trivial disagreement over a fence line or a few metres of yard can quickly stall a transaction, sour a relationship with a neighbour, and generate legal fees that dwarf the value of the land in question.
In commercial settings, the stakes are usually higher than in residential disputes because access rights, service media, and development potential are all bound up in where the line actually sits. This guide walks through what causes these disputes, how they tend to play out, and the practical routes to resolution.
Overview
A commercial boundary dispute is a disagreement between the owners or occupiers of neighbouring business premises about the precise line separating their respective land holdings. It can involve the freehold boundary itself, or it can relate to associated rights such as rights of way, drainage, overhanging structures, or shared access points.
In England and Wales, the Land Registry title plan shows a 'general boundary' rather than an exact one, which means the red line on the plan rarely settles the question by itself. The actual legal boundary is usually determined by interpreting historic conveyances, pre-registration deeds, physical features on the ground, and sometimes long-standing conduct between adjoining owners.
Disputes commonly surface during a sale, a development application, a lease renewal, or when one party puts up a new fence, wall, or building. Because commercial properties often involve multiple interested parties, lenders, freeholders, tenants, and guarantors, these disputes can become tangled quickly if they aren't addressed head-on.
Key steps
01
Gather the paper trail. Pull together the Land Registry title, title plan, any pre-registration conveyances, historic leases, and previous surveys. Older documents often contain the clearest description of the original boundary and can carry more evidential weight than the registered plan, particularly where a conveyance refers to specific measurements or physical features.
02
Inspect the site and record what's there. Walk the boundary with a measure and a camera. Note fences, walls, hedges, drains, signage, and any encroachments. Photograph everything from multiple angles and date the images. If the dispute escalates, contemporaneous evidence of the physical state of the boundary will be valuable.
03
Open a dialogue with the neighbour. Most commercial boundary issues are resolved more cheaply through conversation than correspondence. Put your understanding of the boundary in writing, share the supporting documents, and invite a response. Keep the tone businesslike and avoid threatening letters at this stage, as they tend to harden positions rather than resolve them.
04
Instruct a chartered land surveyor if needed. Where the paper evidence is ambiguous, a surveyor with boundary expertise can produce a determined boundary plan or an expert report. This often becomes the central piece of evidence in any negotiation or subsequent proceedings, and a jointly instructed surveyor can help keep costs down.
05
Consider mediation before litigation. Boundary disputes are notorious for racking up disproportionate legal costs. Mediation, or a without-prejudice meeting between the parties and their advisers, can produce a binding settlement in a single day. Court should be a last resort, and judges increasingly expect parties to have tried alternative dispute resolution first.
Common questions
QDoes my Land Registry title plan show the exact boundary?
In most cases, no. Title plans in England and Wales show a general boundary, meaning the red line indicates the approximate position rather than the precise legal line. The actual boundary is determined by the wording of the original conveyance and the physical features on the ground. If you need a precise line recorded, you can apply to the Land Registry for a determined boundary, but this is a formal process with its own evidential requirements.
QWho is responsible for maintaining a boundary fence or wall?
There is no general legal rule that one side must maintain a boundary structure. Responsibility usually depends on what the title deeds say, whether any covenants apply, and sometimes longstanding practice between the parties. Some titles include 'T' marks indicating which side owns a particular boundary. If the deeds are silent, neither party is automatically obliged to repair or replace a fence, though party wall legislation may apply to shared walls.
QWhat is adverse possession and can it affect a commercial boundary?
Adverse possession is the legal principle by which someone occupying land without the owner's permission for a long enough period can, in certain circumstances, acquire title to it. For registered land, the rules under the Land Registration Act 2002 are stricter than they were under the old regime. In a commercial boundary context, it sometimes arises where a neighbour has used a strip of land, for parking or storage, for many years without objection.
QCan I just put up a fence where I think the boundary is?
Erecting a fence on what you believe to be the boundary can easily trigger a dispute if your neighbour disagrees. If the fence ends up on their land, it could amount to trespass. Before putting up any new structure, it is sensible to confirm the boundary position from the deeds, notify the neighbour, and try to reach agreement. Rushing ahead often makes later resolution harder and more expensive.
QHow much does a boundary dispute typically cost to resolve?
Costs vary enormously depending on how early the matter is addressed. A surveyor's report and a round of solicitors' correspondence may cost a few thousand pounds. If the dispute proceeds to trial, combined legal and expert costs can easily run into tens or hundreds of thousands of pounds, often far exceeding the value of the land in dispute. This is why early negotiation and mediation are almost always preferable to litigation.
QDoes a boundary dispute have to be disclosed when selling commercial property?
Standard commercial property enquiries ask about disputes and complaints concerning the property, including boundary issues. Failing to disclose a known dispute can give a buyer grounds for misrepresentation claims after completion. An active or recent dispute can also affect the price, delay the transaction, or cause a buyer's lender to withdraw, so it is usually better to resolve or document the issue before going to market.
QWhat is a determined boundary application?
A determined boundary is a formal process under the Land Registration Act 2002 where HM Land Registry records the exact line of a boundary between two registered titles. It requires a plan prepared to a specific standard, usually by a chartered land surveyor, and notice to the adjoining owner. If the neighbour objects, the matter may be referred to the First-tier Tribunal. It provides certainty but is not always quick or cheap.
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Brad Askew Legal Tech Founder
Brad has a background in civil and commercial law and founded LegalDocuments.co.uk to make clear, reliable legal information accessible to everyone. This site is not a law firm and does not provide regulated legal advice.
Legal disclaimer
This article is for general information only and does not constitute legal advice. We are not solicitors. For advice on your specific situation, please consult a qualified solicitor.
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