Rights of light and where they sit outside planning

A rights of light neighbour dispute is a private property matter, decided in the civil courts, and it has almost nothing to do with the planning system. A right to light is an easement: a property right attached to a particular window in a particular building, enforceable against the owner of the land that would block it. Planning permission does not create it, does not remove it, and does not authorise interference with it.

That last point is the one people get wrong in both directions. A neighbour who assumes that objecting to the application is the way to protect their light is objecting in the wrong forum. A developer who assumes that permission settles the question has bought a building they may have to cut back.

Why rights of light are a civil matter

The planning system regulates development in the public interest. Private property rights sit outside it, and a planning permission is a permission to develop as against the state, not as against your neighbour.

The classic formulation is that planning permission does not override private rights. A permission can be granted for a building that would infringe an easement, and the owner of the easement can still sue. The remedies are civil: an injunction to stop or reverse the works, or damages in place of an injunction.

Section 203 of the Housing and Planning Act 2016 is the exception that proves the rule. Where land has been appropriated or acquired for planning purposes by a qualifying authority, that section allows works to override easements and restrictive covenants, with the person whose right is interfered with entitled to compensation instead. It is used on major regeneration schemes and it needs the authority's active involvement, so it is not available to an ordinary developer as a matter of course.

How a right is acquired over time

Most rights of light in England arise by prescription under section 3 of the Prescription Act 1832. Where light has been enjoyed through a defined aperture in a building, without interruption, for 20 years, the right becomes absolute unless it was enjoyed by written consent.

Three points inside that sentence do the work.

The right attaches to an aperture, not to a garden, a terrace or a wall. There is no right to light over open land.

The 20 years must be uninterrupted, and it is measured back from the date proceedings are brought rather than from any earlier date, which means a right can mature while a scheme is being designed.

A right can also arise by express grant in a deed, or by the doctrine of lost modern grant, and rights can be expressly excluded or released in a transfer, so the title deeds are always worth reading before anybody spends money on a survey.

The difference from daylight assessment in planning

Both systems measure light. They measure different things, for different purposes, against different tests.

The consequence is that a scheme can comfortably pass the planning tests and still infringe a right to light, and a scheme that fails a planning test may infringe nothing at all. Our note on rights of light and planning daylight as two different systems sets the comparison out in more detail.

What a planning permission does not authorise

Be specific about this, because the misunderstanding is expensive.

A permission does not grant a right to build over or under a neighbour's land, to place scaffolding on it, to oversail with a crane, to interfere with a right of way, to breach a restrictive covenant, or to infringe a right to light. Every one of those is a separate private law question with its own remedy.

For a neighbour, that means the planning objection and the private claim run on different tracks. Objecting is worth doing where the scheme raises genuine planning harm, including on daylight grounds. But an objection does not preserve a right to light, and a permission being granted does not lose it. Our note on the planning permission that ignores rights of light covers what to do when the two diverge.

Evidence of an established right

The evidence is documentary and physical, and it is worth assembling before taking advice, because it shortens the advice.

What establishes the claim: the age of the building and the aperture, from title deeds, historic Ordnance Survey editions, old photographs and any planning history showing when the window was formed. Evidence that the aperture has been in continuous use, which is usually a matter of photographs and occupation records. Confirmation from the title that no light obstruction notice has been registered and that the deeds do not exclude or release the right. And a measured survey of the room and the window, because the assessment depends on the internal geometry.

The interruption question matters on both sides. A developer can start the clock running against a neighbour by registering a light obstruction notice under the Rights of Light Act 1959, which operates as a notional screen and can prevent a right maturing. Neighbours discovering such a notice on the local land charges register should take advice quickly, because the notice has a limited life and a response is time-critical.

Practical steps before a scheme is built

For a developer, the sequence is well established and it should happen before the contract is let.

1. Commission a rights of light survey from a specialist surveyor, identifying every affected aperture and the scale of the infringement.
2. Check the titles for express releases, existing agreements and registered notices.
3. Quantify the exposure, both as a compensation figure and as the cost of a redesign.
4. Decide the strategy: design out the infringement, negotiate a release, or price the risk.
5. Consider whether insurance is available and on what terms, remembering that most policies require that no approach has been made to the neighbour.

That last item is the trap. Approaching the neighbour usually voids the availability of insurance, so the decision about whether to insure has to be taken before anybody knocks on a door.

For a neighbour, the sequence is shorter. Establish whether you have a right, get an assessment of the likely infringement, and take advice on timing, because delay is the factor most likely to convert a possible injunction into damages.

When to take professional advice

Take it early on both sides, and take it from the right people. A rights of light surveyor quantifies the infringement. A property litigation solicitor advises on the right and the remedy. A planning consultant deals with the application. They are three different jobs.

The courts retain a discretion to award damages instead of an injunction, and the exercise of that discretion is fact-specific, so no one case settles what will happen in another. Decisions where a mandatory injunction has been granted requiring a completed building to be cut back are rare but they exist, and they are the reason developers take the exposure seriously rather than treating it as a line in the contingency.

If your concern is how the scheme performs on planning daylight grounds rather than on private rights, that is assessed in a Daylight and Sunlight Assessment, which is a different document answering a different question. Browse the 66 report types by category to see how the two sit alongside the rest of an application.

This is general guidance, not legal advice. Rights of light are a matter of property law and the position depends on the title, the building and the facts, so take advice from a solicitor before relying on anything here. PlanScope provides AI-assisted draft reports for planning applications. Reports should be reviewed before submission. We do not guarantee planning approval.