Do you need planning permission for a right to light claim, the truth

Planning vs right to light, the simple version

Planning permission is public law. Councils decide applications by reference to planning policy and public amenity issues. Daylight and sunlight reports may be part of that picture, often using guidance such as BRE, but that is not the legal test for rights of light.

Right to light is a private property right (an easement), usually acquired by long use under the Prescription Act 1832. If it is infringed, it is enforced through the courts as a nuisance claim.

That means:

• You can support a planning scheme and still pursue a right to light claim later if you suffer an actionable loss.
  
  
• A council can grant planning permission and you can still seek an injunction or damages if the built development infringes an established right.

The only point where planning can change the outcome, section 203

There is one big exception developers and owners need to be aware of.

In certain cases, where land is acquired or appropriated by a local authority (and other legal conditions are met), section 203 of the Housing and Planning Act 2016 can allow development to proceed even if it interferes with easements such as rights of light. The practical effect is that an injunction is typically removed as a remedy and the affected owner’s claim becomes one for compensation instead.

This is not automatic and it is not common on everyday schemes, but it is a real tool on larger projects.

Why “sign up now” letters before planning are usually a red flag

We are seeing more agencies writing to owners before there is even a planning application, asking them to “register a claim”.

The problem is basic: without a defined proposal there is nothing reliable to assess.

A proper right to light assessment needs enough information to build a 3D model of the proposed scheme and test it against your affected windows and rooms. If there are no proper drawings, heights, or coordinates, there is no meaningful model and no evidence of injury. At that stage, signing up often just hands your details to a lead generator.

What a proper assessment should include

If you are going to take advice, look for this:

• A credible servient model: accurate drawings of the proposed scheme (or clearly stated assumptions if it is early-stage).
  
  
• A credible dominant model: your building surveyed properly, including window positions and relevant room layouts.
  
  
• A recognised calculation method: usually Waldram-derived analysis, used with judgement rather than as a rigid tick-box.
  
  

Anything less is guesswork.

Timing, act within 12 months to protect your position

You do not need to sign anything before the developer has shown their hand. But the first year after your light is threatened is critical if you want to keep all remedies on the table.

• If a new obstruction goes up, get a clear written protest out inside 12 months. Silence can be treated as acquiescence, which lets a one year interruption bite against the Prescription Act route. A simple, direct protest to the party doing or authorising the works will usually protect you.
  
  
• If a Light Obstruction Notice is registered, you have 12 months to issue a court challenge. If you do not, the notice is treated as a one year interruption that defeats the statutory prescriptive claim for those windows.
  
  
• If section 203 Housing and Planning Act 2016 is engaged, move promptly. Once a council validly engages section 203, injunction leverage is usually removed and the route turns to section 204 compensation assessed on compulsory purchase principles. Timing and case management then matter, so take advice as soon as you are on notice of that step.
  
  

Only sign a retainer when you have full cover
Do not lock yourself in unless you are getting the full works, legal team, independent experts, barristers and appropriate insurance. That is the protection you need for a proper fight.

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