Tree law is often misunderstood as being simply about overhanging branches or neighbour disputes. In reality, it sits at the intersection of property rights, nuisance, land ownership, development, environmental responsibility and risk management — and many of the legal principles still shaping modern disputes were established more than a century ago.
At Tree Law, we regularly advise homeowners, insurers, developers, housing associations, local authorities, arborists and landowners on disputes involving trees and neighbouring land. What is striking is how often those disputes are resolved using legal principles developed in historic cases that continue to carry real authority today.
These judgments may be old, but the issues they deal with remain extremely current.
Boundary disputes, overhanging vegetation, encroachment, nuisance, land use restrictions and ownership arguments continue to arise daily across England and Wales, particularly as trees become increasingly important within discussions around biodiversity, climate resilience, placemaking and development.
Below are five landmark cases that continue to influence modern tree law and property disputes.
- When a Boundary Becomes More Important Than the Title Plan
Hetherington v Galt (1905)
Boundary disputes are among the most emotionally charged and expensive neighbour disputes that can arise.
Many people assume that a title plan will provide a definitive answer. In reality, title plans are frequently approximate, historic, unclear or inconsistent with what physically exists on the ground.
Hetherington v Galt involved a dispute between neighbouring landowners in Edinburgh regarding trees growing along a boundary line. The title measurements themselves were uncertain and qualified by the phrase “or thereby”, meaning the plans could not be treated as mathematically precise.
The court instead focused heavily on the historical conduct of the parties and the physical treatment of the boundary over time.
The trees had effectively been treated as the boundary marker for years. That practical arrangement carried significant legal weight.
The court accepted that a long-standing agreed boundary, evidenced through possession and occupation, could prevail over imperfect measurements within title documentation.
That principle remains highly important today.
At Tree Law, we regularly encounter disputes involving:
- historic hedgerows
- mature tree lines
- old fences
- retaining walls
- planting arrangements
- boundary landscaping
In many of those cases, the physical reality on site becomes just as important, if not more important, than what appears on paper.
This case is also notable because it contains judicial commentary suggesting that a tree whose trunk stands wholly on one side of the boundary does not automatically become jointly owned simply because its roots spread underneath neighbouring land.
That remains an important distinction in modern tree ownership disputes.
- The Law Protects Airspace Too
Pickering v Rudd (1815)
Most landowners understand that entering someone else’s land without permission can amount to trespass.
What many people do not realise is that legal ownership also extends into the airspace above the land to a reasonable extent.
In Pickering v Rudd, a neighbour attached a board to his wall in such a way that it projected over adjoining land.
The court recognised that this interference could still infringe the neighbouring owner’s property rights, despite no physical contact with the ground itself.
This principle remains highly relevant in modern disputes involving:
- overhanging branches
- climbing plants
- intrusive structures
- scaffolding
- aerial encroachments
- signage
- balcony projections
- development overhangs
Trees are particularly interesting because they naturally grow across boundaries and into neighbouring airspace.
The law therefore attempts to balance competing rights:
- the right of a tree owner to enjoy and retain their tree
- the right of the adjoining owner to enjoy their own property without unreasonable interference
This balancing exercise sits at the heart of many nuisance disputes involving trees.
It also explains why modern disputes are rarely as simple as “the branches are over my garden so I can do whatever I like”.
Legal rights, duties, conservation protections and practical risk management all interact.
- Restrictive Covenants Can Shape Land Use for Generations
Jay v Richardson (1862)
Although not strictly a tree law case, Jay v Richardson contains principles that remain highly relevant in disputes involving woodland, estate management and development constraints.
The dispute concerned a restrictive covenant designed to prevent nearby land being used in competition with an existing hotel business.
The court confirmed that restrictive covenants can bind future owners who purchase land with notice of those obligations.
This principle continues to shape land use across England and Wales today.
At Tree Law, restrictive covenants regularly arise in matters involving:
- private estates
- woodland management
- landscape preservation
- biodiversity projects
- planting restrictions
- visibility corridors
- development control
- historic estate arrangements
In practice, old title deeds often contain restrictive provisions that landowners have forgotten about entirely.
Those restrictions can suddenly become extremely important when disputes arise over:
- tree planting
- hedge growth
- blocked views
- woodland clearance
- development proposals
- access arrangements
Ignoring restrictive covenants can lead to injunctions, costly litigation and significant delays to development projects.
The case is a reminder that tree-related disputes are rarely confined solely to arboriculture. They often involve wider property rights and historic land obligations that continue to affect modern ownership.
- Shared Hedges Mean Shared Problems
Stanton v Jones (1994)
Boundary hedges frequently become a source of tension between neighbours.
What begins as a practical maintenance issue can quickly escalate into a dispute involving ownership, amenity, privacy, safety, light obstruction and responsibility for costs.
Questions commonly arise such as:
- Who owns the hedge?
- Who is responsible for maintenance?
- Can one neighbour reduce the height?
- Does one owner need permission from the other?
- Is the hedge jointly owned?
- What happens where the hedge forms the legal boundary?
In Stanton v Jones, the Court of Appeal considered whether a neighbour was entitled to reduce the height of boundary Cupressus trees and hedging treated as a shared or “party” feature.
The court recognised rights connected to maintenance and reduction of the vegetation.
The case reflects a wider legal reality: boundary features are often not owned or controlled in the straightforward way many people assume.
In modern disputes, outcomes frequently depend on:
- title documentation
- lease wording
- historic arrangements
- maintenance history
- boundary positioning
- physical evidence on site
This is particularly relevant as hedge disputes continue to increase, especially in densely populated residential areas where privacy, sunlight and property enjoyment often compete directly with one another.
- The Famous Right to Cut Back Overhanging Branches
Lemmon v Webb (1895)
Lemmon v Webb remains one of the most important tree law authorities in England and Wales.
The House of Lords confirmed that a landowner may remove branches overhanging their property without first giving notice to the tree owner, provided they do so from their own land and without trespassing.
The court treated overhanging branches as a continuing nuisance capable of self-help abatement.
This principle is still relied upon daily.
However, modern application is often far more complicated than people expect.
Issues regularly arise where:
- excessive pruning destabilises the tree
- Tree Preservation Orders apply
- conservation area protections exist
- wildlife legislation restricts works
- access onto neighbouring land occurs
- cutting extends beyond the boundary line
- the works cause tree failure or damage
In other words, the existence of a legal right does not necessarily eliminate risk.
Tree works carried out aggressively, carelessly or without proper consideration of legal protections can still generate substantial liability.
This is one of the reasons why specialist advice is often required before works are undertaken.
Why These Cases Still Matter
What these historic judgments demonstrate is that tree law has never simply been about trees.
It is about the relationship between people, land, risk, ownership, development and responsibility.
As trees become increasingly important within urban design, biodiversity strategy and climate resilience planning, disputes involving trees are becoming more technically and legally significant.
At the same time, rising property values and denser development mean neighbour disputes can escalate quickly and become deeply personal.
That combination creates a growing need for specialist legal expertise that properly understands both the legal framework and the practical realities involved.
At Tree Law, we work precisely at that intersection.
We help clients navigate complex tree-related legal issues with expertise and fresh thinking, whether the issue involves subsidence, nuisance, ownership, liability, planning constraints, risk management or dispute resolution.
Many of the legal principles may be historic, but the consequences for modern landowners are very real.
Need Advice on a Tree-Related Legal Issue?
Whether you are dealing with:
- overhanging branches
- a boundary dispute
- subsidence concerns
- tree-related property damage
- a Tree Preservation Order issue
- neighbour conflict
- woodland management issues
- development constraints
- liability following tree failure
- or strategic advice relating to trees and land
Tree Law delivers expertise and fresh thinking where trees, people and property meet.
To speak to our team, visit Tree Law.
