How Insurance Policies Influence Rights of Light Outcomes

By RightsOfLight.org.uk · 10 September 2026

Most people first hear about rights of light insurance when a developer mentions it in a letter or when their solicitor raises it during a property transaction. But rights of light insurance is a topic that touches both sides of a dispute, and understanding how these policies actually work can make a real difference to your position as a property owner.

Let us start with the basics. A rights of light insurance policy is typically taken out by a developer or a purchaser of land to cover the financial risk that a neighbouring property owner might bring a claim. The policy does not remove or override your legal right. It simply means the developer has arranged a pot of money to deal with potential claims rather than negotiating with you upfront. If you want to understand what a right of light is and how it arises, that context is essential before thinking about insurance.

From a developer's perspective, insurance is attractive because it can be cheaper than negotiating settlements with every affected neighbour. Premiums are calculated based on the likelihood and value of potential claims. Insurers assess how many properties are affected, how severe the light loss might be, and whether an injunction is a realistic risk. If the risk of a court ordering the building to be cut back or demolished is high, premiums will be steep or the insurer may decline to offer cover at all.

Here is where it gets interesting for property owners. The existence of an insurance policy does not prevent you from bringing a claim. Your rights under the Prescription Act 1832 remain intact regardless of what the developer has arranged behind the scenes. You can still pursue an injunction or damages through the courts. The insurance policy is a private arrangement between the developer and the insurer, and you are not a party to it.

However, developers who rely on insurance sometimes take a more aggressive approach. They may proceed with construction without contacting neighbours at all, hoping that affected owners will not notice or will not act quickly enough. This is a calculated gamble. Once a building is finished, courts are generally less willing to grant a mandatory injunction requiring demolition, which shifts the balance towards a damages award instead. If you are wondering whether you can make a claim after construction has finished, the answer is usually yes, but your leverage changes.

The timing of your response matters enormously when insurance is in play. If a developer has taken out a policy and starts building, acting quickly gives you the best chance of securing an interim injunction to halt work. Once the building is up, the insurer is more comfortable because the likely outcome shifts from an injunction to a damages payment, which is exactly what the policy is designed to cover.

So what should you do if you suspect a developer has insured against your claim rather than approaching you to negotiate? First, get professional advice promptly. A rights of light surveyor can assess whether your light has been materially reduced using established methods like the Waldram diagram. A solicitor experienced in this area can advise on the strength of your claim and the best tactical approach. Speed is your friend.

It is also worth knowing that insurance policies often contain conditions that can void the cover. For example, if the developer has been notified of a potential claim before the policy was taken out, the insurer may refuse to pay. This means that writing a formal letter asserting your rights early in the process can sometimes make it harder for the developer to obtain insurance at all, or at least increase the cost significantly.

From a valuation standpoint, insurance does not change how compensation is calculated if your claim succeeds. The court will assess damages based on established principles regardless of whether the developer has insurance. The measure of damages typically reflects either the diminution in your property's value or a share of the developer's profit attributable to the infringement of your light.

One common misconception is that if a developer has insurance, they will simply pay out quickly and generously. In practice, insurers are experienced in defending claims and will often resist or negotiate hard to minimise payouts. You should not assume the process will be straightforward just because insurance exists.

Finally, if you are buying a property near a development site and your conveyancer mentions rights of light insurance being offered by the seller, ask questions. Find out exactly what the policy covers, what the exclusions are, and whether it protects you as the new owner or only the developer. For practical guidance on next steps in your specific situation, professional advice tailored to the facts is always the safest route.

The bottom line is simple. Insurance is a risk management tool for developers. It does not take away your rights, and it should not stop you from exploring your options if your light has been affected.

Reference: Prescription Act 1832; Coventry v Lawrence [2014] UKSC 13 (on remedies and damages principles)