A CLEUD (Certificate of Lawfulness of Existing Use or Development) is a legal document, issued by a local planning authority in England to confirm that an existing use or development is lawful in planning terms.
It doesn't grant planning permission. Instead, it confirms that permission is no longer needed — because the use has become lawful through the passage of time, or because planning permission was never required.
Simply put, a CLEUD turns years of established use into legal certainty.
Lawful is not the same as approved
A common misconception is that a CLEUD is a form of planning approval. It isn't. When a council decides a CLEUD application, it is not judging whether a use or development is desirable, attractive or something it would approve today.
The only question is whether it is lawful as a matter of fact and law. That's why a successful CLEUD depends on evidence. The stronger the evidence, the stronger the case for lawfulness.
When might you need one?
You're selling a property and the buyer's solicitor wants proof that a use or building is lawful.
A mortgage lender or purchaser has raised planning concerns.
The council has questioned the planning status of your property.
You want legal certainty before carrying out further work or making changes.
You want to protect a long-established use from future planning challenges.
If any of these sound familiar, a CLEUD may be the answer.
What a CLEUD can confirm
How long is "long enough"? That depends on the type of breach and when it occurred. We explain the ten-year rule, the former four-year rule and the recent changes on our Planning Immunity page.
An established use
A use of land or buildings continued long enough to become lawful — a caravan used as a home, a house converted into flats, or a storage yard.
Operational development
Building works that have become lawful over the passage of time.
Compliance with a condition
Compliance with a planning condition, where its lawfulness is in question.
CLEUD, LDC or Planning Permission?
Existing & lawful
Confirms that something which already exists is lawful. This is what we specialise in.
Existing or proposed
A Lawful Development Certificate can relate to existing or proposed development. A proposed certificate confirms your plan would not require permission.
New consent
Gives consent to carry out new development. A CLEUD doesn't give permission — it confirms permission is no longer needed.
How do you apply for a CLEUD?
You apply by submitting a Certificate of Lawfulness application to your local planning authority, usually through the Planning Portal. A successful application is built on evidence.
Identify the correct legal basis
We establish which rule applies and the strongest route to lawfulness.
Build a clear chronological timeline
Mapping the history of the use across the relevant immunity period.
Gather independent evidence
Sourcing documents and testimony that corroborate the timeline.
Survey the site & produce architectural drawings
A measured site survey provides the basis for high-quality architectural drawings that represent the buildings and land accurately and clearly.
Prepare and submit the application
Bringing together the evidence, supporting statements, and architectural drawings into a complete application for submission.
Respond to the authority
Responding to any questions from the local planning authority through to the decision.
We manage the entire process on your behalf.
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Does a CLEUD expire?
No. A CLEUD confirms that a use or development was lawful at the date of the application. It doesn't expire. However, it only applies to the specific use or development certified, so a later material change may fall outside its scope.
How long does a CLEUD take in planning?
Local planning authorities aim to determine most applications within around eight weeks, although more complex cases can take longer. In practice, the biggest variable is often how long it takes to gather the evidence needed to prove lawfulness — which is where specialist support can make all the difference.
Can a CLEUD be refused?
A CLEUD can be refused, as no application is guaranteed to succeed. The most common reasons for refusal include insufficient evidence, inconsistent timelines, or an inability to prove that the use or development continued for the relevant immunity period. However, a refusal is not necessarily the end of the road. Depending on the circumstances, it may be possible to appeal the decision or submit a stronger application supported by better evidence.
Not sure if you qualify?
Answer a few simple questions about your property and its history, and we'll give you a clear, honest assessment of where you stand.
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