Appealing a refused lawful development certificate

A lawful development certificate appeal is decided on fact and law, not on whether the development is any good. The inspector asks one question: has the appellant shown, on the balance of probabilities, that what is described is lawful? If yes, the certificate must be granted, however unwelcome the outcome is locally. Appeals go to the Planning Inspectorate under section 195 of the Town and Country Planning Act 1990, and the deadline is six months from the date on the decision notice.

That narrow focus is the reason these appeals are won and lost on paperwork. Nobody is weighing harm against benefit. They are reading your evidence and deciding whether it makes the claim more likely than not.

Why this is not a merits appeal

A certificate under section 191 confirms that an existing use, operation or state of affairs is lawful. A certificate under section 192 confirms that a proposed use or operation would be lawful. Neither grants permission, and neither involves any planning judgement.

So the arguments that work in an ordinary appeal do not work here. It makes no difference that the use is harmless, that neighbours object, that the design is poor or that the council would never have granted permission. Equally, the council cannot refuse because it disapproves. It can only refuse because the evidence does not establish lawfulness.

Objections from third parties are not irrelevant, but only in a narrow way: a neighbour's dated photograph showing the building was not there in a given year is evidence going to the facts. A neighbour's view that the extension is ugly is not.

The same discipline applies to a refused prior approval, which is likewise decided against a defined set of matters rather than on general merits, as set out in the note on appealing a refused prior approval.

The balance of probabilities

The burden sits with the appellant throughout, and the standard is the ordinary civil one: more likely than not.

That standard is lower than people expect and higher than they treat it. It does not require certainty, a paper trail for every month, or independent corroboration of every fact. It does require an account that hangs together and covers the whole of the relevant period.

Guidance and case law, of which the Gabbitas decision is the most quoted, establish that an appellant's own evidence can be enough without corroboration where it is sufficiently precise and unambiguous and there is nothing to contradict it or make it less than probable. The important qualification is in that final clause. Where the council produces its own evidence pointing the other way, unsupported assertion stops being enough.

Evidence that persuades an inspector

Documents beat memory. An account supported by dated records is worth several times the same account given from recollection.

The material that carries weight, roughly in order:

1. Dated documents created at the time for another purpose: invoices, delivery notes, contracts, tenancy agreements, insurance schedules, bank statements showing payments.
2. Official records: council tax banding history, business rates entries, electoral roll, building control records, Land Registry titles and plans.
3. Utility bills and meter readings showing continuous occupation.
4. Photographs with a verifiable date, and historic aerial or street-level imagery covering the years in question.
5. Statutory declarations from people who can speak to the facts from direct knowledge.

Cover the whole period without gaps. A change of use claim needs evidence that the use continued throughout, not evidence that it started and evidence that it exists now. Inspectors probe the middle years, because that is where broken continuity hides.

Build the chronology as a table before writing anything else. One row per year, one column per source, and the gaps become obvious while there is still time to fill them.

Statutory declarations and their weight

A statutory declaration is sworn evidence and it is taken seriously, but its value depends on its content.

A useful declaration states who the declarant is, how they know the facts, what they personally saw, and when. A weak one states a conclusion: that the use has been continuous for more than ten years. Inspectors discount conclusions and credit observations.

Get declarations from people with different vantage points. The owner, a former tenant, a neighbour, a tradesperson who worked on the building, an accountant who prepared the accounts. Several independent accounts that agree on detail are far stronger than one long declaration from the applicant.

Attach the supporting documents to the declaration they relate to, and make sure dates match. A declaration saying the workshop opened in spring 2014 sitting alongside an invoice dated November 2015 invites the question no appellant wants asked.

When the dispute is about the description

Many refusals are not really about lawfulness at all. They are about how the application described what it wanted certified.

A certificate is conclusive only for what it says on its face, so the description has to be precise: the use in the terms the law recognises, the extent of the land, any limitations. A description that is too wide invites refusal because part of it is not evidenced. One that is too narrow gives the applicant less than they need.

Where this is the issue, the appeal can still succeed, because the decision maker can grant a certificate in modified terms rather than simply dismissing. Offer the alternative wording in the appeal statement, precisely drafted and matched to the evidence, rather than leaving the inspector to invent it.

A short covering Planning Statement setting out the description sought, the legal basis and an index to the evidence makes the case far easier to follow than a bundle with a covering letter.

The timetable and the procedure

Six months from the decision notice to lodge. Where the council failed to determine within eight weeks, the appeal against non-determination becomes available once that period has passed.

There is no appeal fee. Most cases go by written representations, on the usual sequence and timetable set out for written representations appeals. Ask for a hearing where the facts are contested and the evidence needs testing, and for an inquiry where cross-examination of witnesses is likely to decide it. Where the dispute narrows to a few factual issues, agreeing what is not in dispute saves everyone time, which is what statements of common ground are for.

Costs are available in these appeals as in others, and a council that refuses without evidence to counter a properly evidenced application is exposed.

Reapplying instead of appealing

An appeal takes months. A fresh application takes eight weeks, costs a fee, and can be made as many times as you like.

So where the refusal identified a specific evidential gap that you can now fill, reapplying is usually faster and more certain than appealing. Where the disagreement is about the law, about the interpretation of a condition, or about whether the facts as accepted amount to lawfulness, only an appeal resolves it.

One caution before either route. A certificate obtained by a false statement or by withholding material information can be revoked, so evidence has to be complete as well as favourable. That includes the documents that do not help you.

To assemble the supporting documents for an application or an appeal, enter your postcode on PlanScope and work through the guided questions.

This is general guidance, not legal advice, so check the position with your local planning authority or a qualified professional before relying on it. A Lawful Development Certificate is the only formal way to confirm that works are lawful. PlanScope provides AI-assisted draft reports for planning applications. Reports should be reviewed before submission. We do not guarantee planning approval.