If you have received a planning enforcement notice, you have the right to appeal to the Planning Inspectorate under section 174 of the Town and Country Planning Act 1990.
Enforcement appeals follow a particular format. You cannot simply write in to the inspectorate to say that the council has been unfair, that your neighbour has done something worse or that nobody complained for years. An enforcement appeal must be brought on one or more of the statutory grounds of appeal.
There are seven grounds, lettered (a) to (g). You can appeal on one ground or several, but the choice should be made carefully. Picking the wrong grounds, or pleading every ground without proper evidence, can weaken your case and may even expose you to an application for costs.
Enforcement notices are serious legal documents. If you do not appeal before the notice takes effect, you lose the right to challenge it. Once the notice takes effect, you are legally required to comply with it. If you do not, you may be prosecuted. This is why enforcement appeals should not be approached casually and you should always take advice from a planning solicitor or a chartered town planner.
Ground (a): planning permission should be granted
Ground (a) is the planning merits ground. You are saying that, even if there has been a breach of planning control, planning permission should now be granted for what has been built or done.
For example, the council may have served a notice requiring you to demolish an extension, remove an outbuilding, stop using a building as flats or reverse some other change of use. Under ground (a), the inspector considers whether that development is acceptable in planning terms.
This is the closest an enforcement appeal gets to an ordinary planning appeal. The inspector will consider the development plan, national planning policy and all the usual planning considerations, including design, impact on neighbours, highways, parking, living conditions, heritage and the Green Belt.
If you appeal on ground (a), you are treated as having made a planning application. This is known as a deemed planning application, and a fee is payable. The fee is double the amount that would have been payable for an equivalent planning application to the council, which can make ground (a) a relatively expensive ground to run.
The case therefore needs to be argued properly, with the same kind of planning evidence and analysis you would submit in support of a normal planning application or appeal. It is not enough to say that the development is harmless. You need to explain why it is acceptable.
Ground (a) is also subject to important restrictions. If planning permission for the same development has already been refused and an appeal has been dismissed, you may not be able to run the same planning merits case again through an enforcement appeal. In those circumstances, the strategy may need to focus on the other grounds. Check with your planning consultant whether you are entitled to make a ground (a) appeal.
Grounds (b) and (c): the development did not happen, or was not a breach
Grounds (b) and (c) look similar, but they do different jobs.
Ground (b) is a factual challenge. You are saying that the matters alleged in the notice have not occurred. For example, the council might allege that a house has been converted into two flats, when in reality it is still being used as one dwelling. Or it might describe a building, use or operation in a way that does not reflect what is actually on the ground.
Ground (c) is different. You may accept that the works were carried out, or that the use has changed in some practical sense, but say that there has been no breach of planning control. This is where arguments about permitted development, use classes, internal works and material changes of use tend to arise.
Ground (b) says the allegation is simply not true. Ground (c) says the alleged development does not need planning permission at all.
Ground (b) should not be pleaded casually. If the council says a building has been constructed, and everyone can see the building at the site visit, the argument is not likely to get far. Ground (c), by contrast, can be very powerful where there is a genuine legal or planning argument that permission was not required in the first place.
For example, you might accept that an outbuilding has been built, but argue that it was permitted development. You might accept that a property is being used differently from before, but argue that the change is not material in planning terms. You might accept that works have been carried out, but argue that they were internal only and therefore did not amount to development requiring planning permission.
This is often where enforcement appeals become more technical than people expect. Planning law does not always match common sense. Something that feels small or harmless may still require planning permission. Equally, something that irritates a neighbour is not necessarily a breach of planning control.
Ground (d): it is too late for the council to take action
Ground (d) is the immunity ground. You are saying that, even if there has been a breach of planning control, it has existed for long enough that the council can no longer take enforcement action.
This is where the four-year and ten-year rules come in. These rules changed in April 2024. In many cases, a ten-year period now applies, although transitional provisions mean that some older breaches may still benefit from the previous four-year rule.
Ground (d) appeals are evidence-heavy. It is not enough to say that something has been there “for years”, or that the council must have known about it. You need proper evidence showing what happened, when it happened and whether the use or development continued for the required period.
Useful evidence might include dated photographs, invoices, tenancy agreements, council tax records, utility bills, business records, statutory declarations, sworn statements and historic images. The exact evidence will depend on the type of breach alleged.
Ground (d) appeals can also become procedurally more involved than a straightforward written appeal. Where the facts are disputed, or where the evidence needs to be tested properly, the appeal may proceed by hearing or public inquiry so that witnesses can give evidence orally and be questioned. That can significantly increase the cost of the appeal.
Not every ground (d) appeal will go to a hearing or inquiry. The procedure is ultimately at the discretion of the Planning Inspectorate, depending on the complexity of the case and the nature of the evidence. But it is a real possibility in immunity cases, especially where the appeal depends heavily on witness evidence or disputed factual history.
Ground (d) can be an excellent ground where the evidence is strong. Where the evidence is thin, disputed or dependent mainly on witness recollection, it can become difficult and expensive very quickly.
Ground (e): the notice was not properly served
Ground (e) is about service of the notice. The council must serve the enforcement notice on the owner, occupier and anyone else with a relevant interest in the land.
This is a narrow ground and is rarely decisive on its own. Procedural defects can sometimes be corrected by the inspector, particularly where no real prejudice has been caused. If you received the notice, understood it and appealed in time, a technical complaint about service may not help very much.
That does not mean ground (e) is never useful. If the council failed to serve the right people and that failure caused real prejudice, it may need to be considered. But it is usually run alongside other grounds rather than as the main argument.
Ground (f): the steps required go too far
Ground (f) is one of the most useful grounds in practice. You may accept that there has been a breach of planning control. You may even accept that something needs to be done. But you say that the steps required by the notice go further than is necessary.
For example, the council might require an entire extension to be demolished when a smaller alteration would remedy the planning harm. It might require a use to cease completely when a more limited restriction would be enough. It might require land to be restored in a way that goes beyond what is actually needed.
Ground (f) is often a sensible fallback to ground (a). You can argue first that planning permission should be granted for the development as it stands. If the inspector disagrees, you can then argue that the notice should be varied so that it requires something less drastic than full removal.
This can make a huge practical difference. An appeal does not always need to end with a complete victory to be worthwhile. Sometimes the realistic aim is to reduce the burden of the notice and achieve a workable outcome.
Councils can be heavy-handed when drafting enforcement notices. Once they decide to take action, they often require the most complete form of remedy available to them. From the council’s point of view, that is understandable. They want the breach resolved. From the landowner’s point of view, the requirements may be excessive, expensive and unnecessary. Ground (f) is the ground that allows the inspector to consider whether the notice has gone too far.
Ground (g): more time is needed to comply
Ground (g) is about the period for compliance. You are saying that the time allowed by the council is too short.
This might be important where the notice requires building works, the removal of tenants, the relocation of a business, the sale of equipment or any other practical step that cannot realistically be completed within the period allowed.
Ground (g) does not concede that the development is unacceptable. It is a protective ground. You are simply saying that, if the notice is upheld, more time should be given to comply with it.
It is often sensible to include ground (g), provided there is a proper reason why more time would be needed. If the appeal otherwise fails, an extended compliance period may still be a valuable outcome.
Choosing the right grounds
The temptation when facing an enforcement notice is to plead every ground available. Resist it.
Inspectors are used to seeing enforcement appeals padded out with grounds that have no real evidential basis. This does not help. It can make the appeal look weak and unfocused, and in some cases unreasonable behaviour can lead to a costs award.
The right approach is to read the notice carefully, understand exactly what the council is alleging and then identify which grounds genuinely fit the facts. In many cases, a focused appeal on two or three properly evidenced grounds will be much stronger than a scattergun appeal on all seven.
For example, in some cases the right approach may be to argue ground (a), because the development is acceptable and planning permission should be granted. In others, the real argument may be ground (c), because the council has misunderstood whether permission was required in the first place. In older cases, ground (d) may be the strongest route, but only if the evidence is good enough. Ground (f) and ground (g) are often important fallback grounds, because they can reduce the practical impact of the notice even where the main argument fails.
Enforcement appeals are technical, and the consequences of getting them wrong can be serious. If you have received an enforcement notice, you should take advice quickly. The appeal must be submitted before the notice takes effect, and once that deadline is missed, it may be too late to challenge it.
At Just Planning, we regularly advise homeowners, landlords and small developers on enforcement notices and planning enforcement appeals. We can review the notice, advise on the available grounds of appeal and prepare the appeal on your behalf.
If you have received an enforcement notice, do not ignore it. Contact us as soon as possible.
