How Insurance Policies Affect Rights of Light Claims and Settlements

By RightsOfLight.org.uk · 1 September 2026

When a developer builds near your property and reduces your natural light, you might assume the dispute is simply between you and the developer. In practice, insurance plays a surprisingly large role in how rights of light claims unfold and how they get resolved. Understanding this can change how you approach a claim and what kind of outcome you can realistically expect.

Most developers today take out rights of light insurance before they start building. The idea is straightforward. They buy a policy that covers the cost of defending or settling any rights of light claims that affected neighbours might bring. This is sometimes called "diminution of light" insurance or, more broadly, third-party rights insurance. Developers do this because rights of light claims carry serious financial risk, including the possibility of an injunction that could halt or even reverse construction. Insurance gives them a financial safety net.

For you as a property owner, the existence of an insurance policy on the developer's side matters more than you might think. When an insurer is involved, the insurer often controls the defence strategy. That means the person you are negotiating with may not be the developer at all, but an insurance company and its appointed solicitors. Insurers tend to be experienced in handling these disputes and will typically push for a damages settlement rather than risk an injunction being granted by a court. If you want to understand what a right of light is and why it creates such a potent legal risk for developers, it becomes clear why they insure against it so routinely.

One thing that catches many property owners off guard is the timing element. Developers often take out these insurance policies very early in the project, sometimes before planning permission is even granted. A condition of the policy is usually that the insured party does not notify or alert neighbouring owners to the potential light impact. This is why some neighbours only discover a problem once construction is well underway. The developer's insurer has been quietly managing the risk from the start.

So what does this mean if you are the one losing light? First, it means there is almost certainly money set aside to deal with your claim. Insurers budget for settlements. They would rather pay a reasonable sum in damages than face the unpredictable cost of litigation and a possible injunction. This can actually work in your favour, because it means the other side has both the resources and the motivation to settle. If you are wondering whether you can make a claim, the presence of insurance on the developer's side should give you some confidence that there is a realistic path to compensation.

However, do not assume the insurer will simply hand over whatever you ask for. Insurance companies employ experienced rights of light surveyors and solicitors. They will scrutinise your claim carefully, challenge the extent of any light loss, and negotiate hard on valuation. Knowing how compensation is calculated in these disputes puts you in a much stronger position when dealing with an insurer-led negotiation.

There is another side to the insurance question that fewer people talk about. As a property owner, you can also obtain insurance in certain situations. For example, if you are buying a property and there is uncertainty about whether a right of light exists or whether it has been infringed, a buyer's solicitor might arrange an indemnity policy. This protects you against future loss if the right turns out to be unenforceable or if a neighbouring development proceeds lawfully. These policies are common in conveyancing and are relatively inexpensive compared to the potential loss of property value.

The interplay between insurance and rights of light is one reason why so many claims settle out of court. When both sides have professional advisers and an insurer controlling the purse strings, there is a strong commercial incentive to agree on a number rather than fight it out before a judge. Litigation is expensive, slow, and uncertain. Insurance companies know this better than anyone.

If you suspect your light has been affected by a nearby development, it is worth understanding the role insurance might be playing behind the scenes. The developer may seem unresponsive, but their insurer could be quietly assessing your claim already. Getting proper advice early, from both a specialist surveyor and a solicitor, helps you engage with the process on equal footing. You can request a free assessment to find out where you stand before making any decisions about how to proceed.

Reference: General insurance market practice in rights of light claims; Prescription Act 1832; Shelfer v City of London Electric Lighting Co [1895] 1 Ch 287