Specialist Rights of Light Practice | Independent Surveyors | London & Nationwide | Developers & Neighbours | Free Initial Consultation
Rights of Light
Surveyors
Blue Sky Surveyors are independent, specialist rights of light surveyors. Unlike larger generalist practices, rights of light is at the very core of everything we do – meaning every client receives focused expertise, not a generic service.
Expert Rights of
Light Surveyors
A right to light is a legal easement that entitles the owner or occupier of a building to receive natural daylight through defined apertures such as windows. When a neighbouring development threatens to reduce that light below an acceptable level, the consequences for both sides can be significant – from injunctions halting construction to substantial financial claims.
Blue Sky Surveyors are a dedicated specialist practice, focused exclusively on rights of light and daylight & sunlight. That focus means every client – whether a homeowner, a large-scale developer, or a legal team – receives the same depth of expert attention on every instruction.
Whether a homeowner is concerned about a neighbouring extension, a developer needs to assess and address rights of light risks before or during a project, or a solicitor requires an independent expert opinion, our team of specialist rights of light surveyors is here to help.
Why Choose a Specialist?
Free Initial Consultation
Blue Sky Surveyors offer a free initial telephone consultation to discuss the situation and explain the options available. Call 020 7867 3955.
Our Rights of
Light Services
Blue Sky Surveyors provide a full range of rights of light surveying services across London and the UK, covering every stage of the process for both developers and neighbours.
Rights of Light Assessments
Early-stage risk identification, design advice to minimise exposure, negotiation with affected neighbours, and strategic guidance throughout the development process to protect the project.
Independent advice and representation for property owners and occupiers concerned about the impact of a neighbouring development on their right to light.
Detailed written reports suitable for use in legal proceedings, planning applications, insurance purposes, or property transactions. Prepared to the highest professional standards.
Negotiation & Settlement
Expert negotiation on behalf of clients to reach a fair financial settlement, whether seeking compensation for an infringement or seeking to obtain a release of a right to light.
Expert Witness Services
Blue Sky Surveyors are experienced in preparing expert witness reports and appearing as expert witnesses in legal proceedings, arbitration, and mediation relating to rights of light disputes.
A right to light is a type of easement — a legal right attached to a property that allows the owner or occupier to receive natural daylight through windows and other apertures in the building. It is a common law right, meaning it exists independently of planning law and is not affected by the granting of planning permission.
How is a Right to Light Acquired?
Prescription (Long Use)
Under the Prescription Act 1832, a right to light is acquired automatically if light has passed through a window for 20 or more years without interruption. This is the most common way rights of light arise.
Express Grant
A right to light can be expressly granted in a deed, conveyance or transfer of land.
Implied Grant
In certain circumstances, a right to light may be implied when land is transferred or a lease is granted, even if not expressly mentioned.
What Constitutes an Infringement?
An infringement of a right to light occurs when a development reduces the level of natural daylight reaching a protected window or aperture to below an acceptable threshold. A reduction in light does not automatically constitute a legal infringement — the reduction must be sufficient to leave the affected room with an inadequate level of natural daylight for its purpose.
Important
The granting of planning permission for a development does not override or extinguish a neighbouring property's right to light. Rights of light are a civil matter entirely separate from the planning system.
How We Work
Step 1 - Free Initial Consultation
Step 2 - Site Survey & Data Collection
Where required, a measured survey of the relevant properties is undertaken to gather the accurate data needed for the technical assessment.
Step 3 - Technical Assessment
Using specialist software, existing and proposed daylight conditions are modelled to determine whether an infringement exists or is at risk. The assessment considers all relevant factors including the use of each affected room.
Step 4 - Rights of Light Report
A detailed written report is prepared setting out findings, conclusions and recommendations. The report is suitable for use in legal proceedings, with insurers, or to support negotiations with the other party. Learn more about our Rights of Light Reports
Step 5 - Negotiation & Resolution
In the majority of cases, rights of light matters are resolved through negotiation rather than litigation. Blue Sky Surveyors will negotiate on behalf of the client to seek either a financial settlement or a design modification to eliminate the infringement.
Developers & Neighbours
For Developers
Rights of light represent one of the most significant legal risks facing any development project in the UK. An unresolved claim can result in an injunction halting construction, mandatory demolition, or substantial financial damages. Early engagement is the most effective way to manage this risk.
- Pre-acquisition risk assessment
- Design stage advice to minimise rights of light exposure
- Formal rights of light assessment and report
- Advice on rights of light insurance
- Light Obstruction Notice (LON) strategy
- Ongoing support through to project completion
For Neighbours
Where a neighbouring development is threatening a right to light, it is important to take action early. Once a development is complete, available remedies may be limited to financial compensation rather than an injunction to halt or modify the works.
- Assessment of whether a right to light has been or will be infringed
- Advice on legal options and likely remedies
- Negotiation with the developer's surveyor on behalf of the client
- Preparation of expert reports for legal proceedings
- Attendance at mediation or court proceedings as required
- Advice on compensation and settlement values
Rights of Light - Frequently Asked Questions
Does planning permission override a right to light?
No. Planning permission is granted by the local planning authority and relates to whether a development is acceptable in planning terms. It does not affect private rights such as rights of light, which are a civil matter between neighbouring landowners. A developer can have planning permission and still be liable for infringing a neighbour’s right to light.
What remedies are available if a right to light is infringed?
The primary remedy is an injunction, which could require the developer to modify or demolish the offending structure. However, courts increasingly exercise discretion and may award damages in lieu of an injunction where appropriate. The likelihood of an injunction versus damages depends on a number of factors including the severity of the infringement and the stage of the development.
How long does it take to acquire a right to light?
Under the Prescription Act 1832, a right to light is acquired after 20 years of uninterrupted enjoyment of light through a window or aperture. The 20-year period is calculated up to the date of any legal proceedings, not the date of the obstruction.
Can a right to light be prevented or interrupted?
Yes. A landowner can interrupt the acquisition of a right to light by serving a Light Obstruction Notice (LON) under the Rights of Light Act 1959. A LON is registered at HM Land Registry and has the effect of a notional obstruction to the light, resetting the 20-year prescription period. This is a complex area and specialist advice should be sought before serving or responding to a LON.
What is the difference between rights of light and daylight & sunlight?
Rights of light is a common law property right that can be enforced through civil litigation. Daylight and sunlight assessments are carried out for planning purposes, typically following BRE guidelines, and inform whether a planning authority should grant or refuse permission for a development. The two are separate but related -a development can comply with BRE guidelines for planning purposes yet still infringe a neighbour’s legal right to light, and vice versa.
How much does a rights of light assessment cost?
The cost of a rights of light assessment depends on the size and complexity of the project, the number of potentially affected properties, and the level of detail required. Blue Sky Surveyors provide fixed-fee quotations following an initial consultation. Call 020 7867 3955 for a free consultation and quote.