Received a Letter from a Developer About Rights of Light? Here's What to Do

By Stephen Buchanan · 13 July 2026

If a letter has landed on your doormat from a developer or their solicitors mentioning your right of light, you are not alone. Thousands of property owners across England and Wales receive these letters every year, and most have no idea what they mean or how to respond. This article explains what is really going on and why that letter could be more significant than it looks.

Developers send these letters because they know their proposed building is likely to reduce the natural light reaching your windows. Under English law, if your property has received light through defined apertures for 20 years or more without interruption, you almost certainly have a legally protected right of light under the Prescription Act 1832. A developer who builds in a way that substantially interferes with that right is exposed to a claim for compensation or, in some cases, an injunction requiring them to cut back or demolish the offending structure. The letter you have received is the developer's way of opening a conversation before that risk crystallises. If you want to understand what a right of light is and how it comes into existence, that is a good place to start.

The tone of these letters varies. Some are polite and vague, simply notifying you that a nearby development is planned. Others are more pointed, enclosing a deed of release for you to sign or offering a modest sum of money in exchange for giving up your rights. A few arrive with technical reports attached, showing that your light will not be affected. Do not take any of these at face value. The developer has had surveyors and lawyers working on this for months. You are seeing the output of a carefully planned strategy, not a casual courtesy note.

Here is the key thing to understand. You are under no obligation to respond immediately, and you should not sign anything without independent advice. A deed of release, once signed, permanently extinguishes your right. That means you lose any future claim, no matter how badly the finished building affects your light. The amount offered in these early letters is almost always far below what a proper valuation would support. To get a sense of the figures involved, it helps to learn about how compensation is calculated in rights of light claims.

Timing matters enormously. Before construction begins, the property owner holds the strongest hand. Courts are far more willing to grant an injunction at this stage, which means the developer faces real risk if they proceed without resolving your claim. Once the building goes up, the balance shifts. Judges become reluctant to order demolition and are more inclined to award damages instead. Developers know this, which is why they often try to settle cheaply before breaking ground or, alternatively, build quickly and hope affected neighbours do not act in time.

So what should you actually do when you get one of these letters? First, do not ignore it. Silence is not a strategy that works in your favour. Second, do not panic or rush into signing anything. Third, get a proper assessment of your position. A specialist rights of light surveyor can measure the impact on your property using daylight modelling techniques, and a solicitor experienced in this area can advise on the strength of your claim. You can find out more about your legal rights as a property owner and what options are open to you.

One common misconception is that the developer's planning permission somehow overrides your private legal rights. It does not. Planning consent and rights of light operate in completely separate legal spheres. A council granting permission for a building says nothing about whether that building will infringe your right to light. The developer still has to deal with affected neighbours on a private law basis.

Another thing to watch for is whether the developer has registered a light obstruction notice under the Rights of Light Act 1959. This is a legal mechanism that allows a notional obstruction to be registered against your property without any physical structure being built. If you fail to challenge it within a year, your right of light can be defeated. These notices sometimes accompany the letters, or they may be registered without you even realising. Always check.

If you have received a developer letter and want to understand your position, the smartest move is to seek a professional opinion early. Many firms offer a free initial assessment, and acting promptly gives you the widest range of options. You can request a free assessment to find out where you stand before making any decisions.

Reference: Prescription Act 1832, s.3; Rights of Light Act 1959; Coventry v Lawrence [2014] UKSC 13