Define: Light-And-Air Easement

Light-And-Air Easement
Light-And-Air Easement
Quick Summary of Light-And-Air Easement

A light-and-air easement is a form of negative easement that prohibits an adjacent landowner from constructing a structure that would obstruct the passage of light or air to the dominant property. This grants the owner of the dominant property the entitlement to receive light and air from a specific direction, while the owner of the servient property is prohibited from interfering with this entitlement. For instance, if a homeowner possesses a light-and-air easement over their neighbour’s land, the neighbour is not allowed to erect a tall fence or a large building that would obstruct sunlight or airflow to the homeowner’s property. This type of easement is commonly used in densely populated urban areas where buildings are in close proximity, and there is a potential for the loss of natural light and ventilation. It is also frequently employed in historic districts where preserving the neighbourhood’s character is of utmost importance.

What is the dictionary definition of Light-And-Air Easement?
Dictionary Definition of Light-And-Air Easement

A light-and-air easement is a form of easement that prohibits a neighbouring landowner from constructing anything that would obstruct the passage of light or air to another person’s property. An easement is a legal entitlement to use or control someone else’s land for a specific purpose, but it does not grant the holder the right to own or sell the land. The land that benefits from the easement is referred to as the dominant estate, while the land burdened by the easement is known as the servient estate. Other types of easements include rights-of-way, water rights, and rights to engage in activities that would otherwise be considered a nuisance.

Full Definition Of Light-And-Air Easement

An easement of light and air, often simply referred to as a “light and air easement,” is a legal right that allows the holder to receive natural light and air through openings, such as windows, over another person’s land. This concept plays a crucial role in property law, particularly in urban settings where buildings are closely situated, and access to natural light and air can significantly impact the value and enjoyment of a property. This overview will explore the origin, legal basis, types, creation, protection, and termination of light and air easements in British law.

Historical Background

The concept of light and air easements has roots in English common law. Historically, these easements evolved from the ancient doctrine of “ancient lights,” which originated in medieval times. Under this doctrine, a landowner who had enjoyed uninterrupted light through a window for at least 20 years gained a legal right to continue receiving that light. This principle aimed to balance property rights with considerations of fairness and the need for natural light in living spaces.

Legal Basis and Framework

Common Law Principles

At common law, the right to light is primarily governed by the Prescription Act 1832. According to this Act, if a window or other opening has received natural light for at least 20 years without interruption, the property owner may acquire a prescriptive easement to that light. This period of uninterrupted use, known as “prescriptive period,” is essential for the establishment of the easement.

The Prescription Act 1832

The Prescription Act 1832 provides the statutory foundation for acquiring easements by prescription, including rights to light. Under Section 3 of the Act, the right to light is considered absolute and indefeasible after 20 years of uninterrupted use, unless it can be proven that the light was enjoyed by consent or agreement between the parties.

Case Law

Numerous cases have shaped the interpretation and application of light and air easements. Notable cases include Colls v. Home & Colonial Stores Ltd [1904] AC 179, where the House of Lords clarified that a claimant must prove substantial interference with their light, and Regan v. Paul Properties Ltd [2007] EWCA Civ 193, which reaffirmed the principles established in earlier judgments regarding the extent of interference necessary to constitute a breach of the easement.

Types of Light and Air Easements

Easements of Light

An easement of light entitles the dominant tenement (the property benefiting from the easement) to receive natural light through specific apertures, such as windows, in buildings on the servient tenement (the property burdened by the easement). This easement ensures that any new construction or alterations on the servient tenement do not significantly obstruct the flow of natural light to the dominant tenement.

Easements of Air

Although less common, easements of air operate similarly to easements of light. They guarantee that the dominant tenement can receive adequate air circulation through specific openings. Such easements are particularly relevant in densely populated urban areas where buildings are closely packed, and ventilation can be a significant concern.

Creation of Light and Air Easements

Express Grant

Light and air easements can be expressly granted through a formal written agreement between the property owners. This agreement typically specifies the terms and conditions of the easement, including the exact openings through which light and air are to be received and any limitations or restrictions on the servient tenement.

Implied Grant

In certain circumstances, easements may be implied by law. For instance, when a property is subdivided, and part of it is sold, an implied easement may arise if it is deemed necessary for the reasonable enjoyment of the dominant tenement. Implied easements can be established through principles such as “necessity” or “common intention” of the parties.


As previously discussed, an easement of light can be acquired by prescription under the Prescription Act 1832. After 20 years of uninterrupted and unchallenged use of light through a window, the property owner may gain a prescriptive easement to that light. The prescriptive period must be continuous and without the express consent of the servient tenement owner.

Statutory Easements

In some cases, easements may be created by statute. Local planning regulations and building codes may impose requirements that effectively create easements of light and air to ensure adequate living conditions and urban planning standards.

Protection and Enforcement


One of the primary remedies for the infringement of a light and air easement is an injunction. An injunction is a court order that prohibits the servient tenement owner from taking actions that would interfere with the dominant tenement’s easement rights. Injunctions can be temporary (interim) or permanent, depending on the circumstances.


In addition to or instead of an injunction, a property owner whose easement rights have been violated may seek monetary compensation for the loss or damage suffered. Damages aim to place the injured party in the position they would have been in had the interference not occurred.


Abatement refers to the self-help remedy where the dominant tenement owner takes direct action to remove or reduce the obstruction causing the interference. This remedy is generally discouraged and should only be considered when it can be done without causing a breach of peace or further legal complications.

Declaratory Relief

A property owner may seek a declaratory judgment from the court to affirm the existence and scope of their easement rights. This legal determination can provide clarity and prevent future disputes between the parties.

Termination of Light and Air Easements

Express Release

An easement can be terminated by the express release of the dominant tenement owner. This release is usually documented in writing and formally registered to ensure that it is legally binding and recognized.


An easement may be considered abandoned if it is not used for a prolonged period and there is evidence indicating that the dominant tenement owner has no intention of resuming its use. Mere non-use is insufficient; there must be a clear intention to abandon the easement.


If the dominant and servient tenements come under the same ownership, the easement may be extinguished by merger. In such cases, the necessity for the easement ceases as the owner can control the use of both properties.

Statutory Termination

Legislation or changes in local planning regulations may lead to the termination of easements. For example, urban redevelopment schemes or compulsory purchase orders can override existing easement rights in certain situations.

Practical Considerations

Urban Development and Planning

Light and air easements play a significant role in urban development and planning. Local authorities and planners must consider these easements when approving new constructions or alterations to existing buildings. Failure to account for light and air easements can lead to legal disputes and potential delays in development projects.

Property Transactions

When buying or selling property, it is essential to conduct thorough due diligence to identify any existing easements of light and air. Prospective buyers should ensure that these easements are clearly documented and understand their implications on property use and development potential.

Dispute Resolution

Given the potential for disputes over light and air easements, alternative dispute resolution methods such as mediation or arbitration can be effective in resolving conflicts amicably and avoiding costly litigation. These methods provide a more flexible and collaborative approach to dispute resolution.


Light and air easements are a critical aspect of property law, ensuring that property owners can enjoy natural light and air through specific openings. The legal framework governing these easements is rooted in common law principles and statutory provisions, with the Prescription Act 1832 playing a central role. Property owners can acquire easements through express grants, implied grants, prescription, or statutory provisions.

Protection and enforcement of light and air easements are achieved through remedies such as injunctions, damages, abatement, and declaratory relief. Termination of these easements can occur through express release, abandonment, merger, or statutory intervention.

Understanding the legal principles and practical considerations surrounding light and air easements is crucial for property owners, developers, and legal professionals. As urban environments continue to evolve, the importance of these easements in balancing property rights and ensuring adequate living conditions remains paramount.

In conclusion, light and air easements reflect the need to harmonize individual property rights with broader societal interests. They ensure that properties maintain access to essential natural resources, contributing to the health, well-being, and enjoyment of urban living spaces. As such, they remain a vital and dynamic component of property law in the United Kingdom.

Light-And-Air Easement FAQ'S

A light-and-air easement is a legal right granted to a property owner to ensure access to natural light and air on their property, even if it may be obstructed by neighbouring structures or developments.

To obtain a light-and-air easement, you would typically need to negotiate and enter into an agreement with the neighboring property owner, outlining the specific terms and conditions of the easement.

Having a light-and-air easement can protect your property from being overshadowed or blocked by future developments, ensuring that you continue to enjoy natural light and ventilation.

Yes, a light-and-air easement can be transferred to a new property owner if it is explicitly mentioned in the easement agreement and if the transfer is legally documented.

In some cases, a light-and-air easement can be revoked if both parties involved agree to terminate the easement or if certain conditions specified in the agreement are met.

Yes, a light-and-air easement can be modified if both parties agree to the changes and if the modifications are legally documented.

If a neighboring property owner violates a light-and-air easement, you may have legal recourse to seek remedies such as an injunction to stop the violation or monetary damages for any harm caused.

Yes, a light-and-air easement can generally be enforced against future property owners, as long as it is properly recorded and documented in the public records.

In some cases, if a neighboring property owner continuously and openly obstructs the light and air access for a certain period of time, they may acquire the right to continue the obstruction through adverse possession, potentially terminating the light-and-air easement.

In certain situations, a light-and-air easement may be created by necessity if it is deemed essential for the reasonable use and enjoyment of a property, even without the explicit agreement of the neighboring property owner. However, this is subject to specific legal requirements and may vary depending on jurisdiction.

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This site contains general legal information but does not constitute professional legal advice for your particular situation. Persuing this glossary does not create an attorney-client or legal adviser relationship. If you have specific questions, please consult a qualified attorney licensed in your jurisdiction.

This glossary post was last updated: 7th June 2024.

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