How New Build Properties and Developments Acquire Rights of Light

By Daniel Peddlestone · 16 September 2026

Most people associate rights of light with older buildings, Victorian terraces, and period homes with tall sash windows. But what about newer properties? Can a house built ten years ago have a right of light? And what about a brand new development that has only just been completed? These are surprisingly common questions, and the answers matter for anyone living in or near modern housing.

To understand how new builds fit into the picture, you need to know the basics of what a right of light is and how it comes into existence. Under English law, a right of light is most commonly acquired through long use. Section 3 of the Prescription Act 1832 provides that if a building has received natural light through a defined aperture, such as a window, for 20 years or more without interruption, the owner gains a legal right to that light. This right is enforceable against neighbours and developers who want to build something that would block it.

So here is the key point for new builds. A property does not automatically have a right of light just because it exists. If your home was built five years ago, your windows have only been receiving light for five years. You have not yet crossed the 20-year threshold. That means, in most cases, you cannot bring a prescriptive right of light claim against a neighbouring development that blocks your daylight.

This catches a lot of people off guard. You might have bought a new build flat with floor-to-ceiling windows and gorgeous views. Then a developer starts work on a tower block next door. Your light drops dramatically. But unless you can point to a right of light acquired by prescription, or one granted expressly by deed, you may not have a claim at all. It is a frustrating position to be in.

There are, however, some situations where newer properties can have rights of light. If a new build replaced an older building on the same site, and the original building had windows in the same positions that had enjoyed light for over 20 years, the right may have survived. This depends on the facts, and particularly on whether the apertures remained substantially the same. Courts look at the actual opening through which light passes, not at the building around it.

Another route is through express grants. When a developer builds an estate and sells off individual plots, the conveyancing documents sometimes include express rights of light in the deeds. This is not standard, but it does happen, especially in developments where buildings are close together and the developer anticipates future disputes. If your title deeds include a right of light granted expressly, you do not need to wait 20 years.

There is also the question of restrictive covenants. Some developments are subject to covenants that restrict building heights or footprints on neighbouring land. These are not rights of light in the technical sense, but they can achieve a similar practical result by preventing obstructions. It is always worth checking your title documents carefully.

If you are unsure whether you can make a claim, the first step is usually to have a surveyor review the history of the site and the terms of your deeds. The prescriptive right under the 1832 Act requires 20 years of uninterrupted enjoyment, and that clock starts from when the aperture first existed, not from when you personally moved in. Previous owners' time counts towards the total.

For developers, this 20-year rule creates a window of opportunity. If you are planning a project next to a recent development, you may face fewer rights of light constraints than you would beside a row of Victorian terraces. But this is not a reason to ignore the issue. Rights of light are just one piece of the puzzle. Planning conditions, restrictive covenants, and the general law of nuisance can all impose limits on what you can build.

From a valuation perspective, properties without established rights of light may be worth less than equivalent homes that have them. Buyers and their solicitors increasingly ask about daylight risk, especially in dense urban areas. If you want to understand how compensation is calculated in cases where a right does exist, the methodology typically looks at the diminution in the value of the affected property or the developer's profit attributable to the infringement.

The practical takeaway is simple. Do not assume that your property has a right of light just because you have windows. And do not assume it does not, either. The answer depends on the age of the building, the history of the apertures, and the terms of your deeds. If a neighbouring development threatens your light, get the facts checked early. You can always request a free assessment to find out where you stand before making any decisions.

Reference: Prescription Act 1832, Section 3