In Jersey’s hyper-dense, premium property market, boundary transgressions and breaches of neighbourly obligations pose a direct threat to asset valuations, developer returns, and operational liquidity.
Allowing land conflicts to linger in passive negotiation gives opponents the runway to alter facts on the ground, establish prescriptive rights, or permanently impair your land use.
Whether you face a multi-million-pound commercial development encroaching across your border, acute structural interference, or a hostile drainage dispute, passive mediation risks permanent property devaluation.
Sinels delivers rigorous courtroom advocacy and decisive customary law counter-measures to secure titles, halt structural overreach, and safeguard your real estate equity.
Halt boundary overreach, enforce absolute neighbourly duties, and secure your real property rights.
Secure a Boundary & Voisinage Assessment
The Cost of Neighbourly Submission: Why Standard Firms Underperform
Standard offshore law firms frequently approach boundary and voisinage conflicts with an administrative mindset.
By filtering critical land disputes through generic property departments, they risk trapping commercial interests in prolonged cycles of polite correspondence, voluntary surveying reviews, or slow-moving mediations.
This passive approach treats physical encroachments as routine clerical matters, accumulating billable hours while the opposition continues construction, project timelines gridlock, and property value erodes.
Sinels treats boundary and voisinage disputes as high-stakes commercial conflicts. Led by Philip Sinel, our advocates deploy a strategy that prepares for trial from the outset. We do not wait for a counterparty to voluntarily retract an encroachment or mitigate a nuisance.
Instead, we identify historical title defects, exploit customary law liabilities, and launch decisive actions via an Order of Justice to place opponents on the defensive and secure tactical supremacy in the Royal Court of Jersey.
Our Strategic Boundary & Voisinage Framework
Dismantling Encroachments & Enforcing ‘Bornage’
We litigate high-stakes boundary determinations (‘bornage’) and pursue the immediate removal of unlawful physical structural encroachments before the Heritage Division of the Royal Court.
By executing exhaustive, forensic audits of historic contract deeds and registry records, we deploy premier independent mapping experts to expose boundary manipulations.
This approach permanently protects your property’s absolute footprint, clears clouded land titles, and compels the physical demolition of non-compliant counterparty structures at their sole expense.
Testing Exculpation and Exoneration Limits
Our trial advocates prosecute and defend specialised civil claims based on Jersey’s unique customary law doctrine of ‘voisinage’, the quasi-contractual neighbourly obligations governing noise, view, and hazards.
Targeting the core legal principle that landowners must not use their property to injure another, we leverage landmark authorities, such as Gale & Clarke v Rockhampton Apartments, to demand comprehensive damages and remedial orders.
This effectively shuts down invasive commercial operations, eliminates environmental contamination or excessive noise, and legally compels neighbours to fund vital structural rectifications.
‘Visite de Justice’ Execution & Customary Injunctions
We force immediate, formal site inspections (‘Visite de Justice’) by the Bailiff and Jurats, while applying ancient customary remedies including the ‘Clameur de Haro’.
By orchestrating a powerful courtroom presence on the physical land itself, we compel the judiciary to witness property damage firsthand, using emergency injunctions to halt illegal works instantly.
This halts hostile development campaigns on your border, freezing counterparty activity before unauthorised facts on the ground can be permanently established.
Why Landowners and Commercial Developers Instruct Sinels
Sinels is a dedicated litigation firm with a 30-year history of resolving Jersey’s most complex commercial asset, trust, and real property disputes.
We operate entirely free from the institutional conflicts of interest that prevent large, full-service offshore practices tied to local developers, utility monopolies, or public administrative bodies from acting.
We don’t issue passive advisory summaries or counsel submissive patience; we execute decisive trial strategies designed to defeat opposition and maximise your legal security from the moment of instruction.
Connect directly with a senior Jersey Advocate to deploy your property defence.
Engage Our Boundary & Property Litigators
Or Call Us: +44 (0)1534 620500
Frequently Asked Questions About Boundary & Voisinage Disputes
What exactly is the Jersey customary law principle of “voisinage”?
It is a foundational Jersey property law principle establishing a mutual, quasi-contractual duty between adjoining landowners to avoid causing unreasonable interference or physical damage to a neighbour’s property.
Distinct from English common law torts and statutory nuisance, breaches are treated as questions of fact evaluated by the Jurats of the Royal Court based on the severity, nature, and frequency of the disturbance, such as structural undermining, excessive noise, or vibration.
How does Jersey law handle a landslide or property hazard from a higher neighbour?
While historical customary law (’emboulement’) required lower land to accept natural descents from higher ground, modern Jersey jurisprudence ( Venturini v Ghyll Limited) links this principle directly to ‘voisinage’.
Landowners of higher ground owe a strict duty to secure their property once put on formal legal notice of an instability or hazard. If a neighbour fails to act, urgent court orders can be obtained to force them to fund stabilisation works and provide indemnification against resulting losses.
What happens during a “Visite de Justice” in a property dispute?
The Royal Court, comprising the Bailiff or Deputy Bailiff and the Jurats, convenes directly on the disputed land to conduct a formal, on-site inspection.
This procedure is deployed when a visual assessment is essential to resolve complex boundary alignments, encroachments, or structural damage.
Advocates present arguments in situ, allowing the Jurats to evaluate physical evidence firsthand while independent surveying experts capture definitive structural data.



