Enforcement Notices & How to Appeal

An enforcement notice is the main formal step a council takes when it decides that a breach of planning control has happened and that something should be done about it. It is served on you, it tells you what the council says is wrong, and it sets out what you must do and by when. Unlike the earlier information-gathering stages, this one carries a right of appeal, and, crucially, a deadline for using it that cannot be extended.

That deadline is the single most important thing on this page. An enforcement notice can be appealed to the Planning Inspectorate, but only before it takes effect, and lodging the appeal in time suspends the notice until the appeal is decided. Miss the date and the right is gone, whatever the strength of your case. So if a notice has arrived, the clock is already running, and the first task is to read the effective date, not to panic about the rest.

This page explains what a valid enforcement notice must contain, the seven grounds on which you can appeal, how the timing works, and what happens if you get it wrong or ignore it. It sits within our wider guide to planning enforcement, and picks up at the point the enforcement sequence reaches a formal notice. If you are the neighbour who reported the breach rather than the person served with the notice, our guide on how to report a breach of planning control explains what you will and will not be told. If nothing formal has arrived yet and you are here because somebody reported you, start instead with being reported to planning enforcement.

 

 

 

 

 

What an enforcement notice must contain

A council may issue an enforcement notice only where it considers it expedient to do so, the discretionary judgement explained on our enforcement hub. Once it decides to act, section 173 of the Town and Country Planning Act 1990 governs what the notice must say. A notice that gets this wrong can be quashed or corrected on appeal, so the contents matter as much to you as to the council.

A planning enforcement notice is sent to the owner and the occupier of the land where the breach has occurred, as well as anyone else who has a legal interest in the property (such as freeholders, leaseholders, and mortgage lenders) according to the property title.

A properly drawn notice must state, in terms an ordinary reader can follow:

• the matters the council alleges are a breach of planning control, described plainly, so you know exactly what is said to be wrong
• which kind of breach it is: development carried out without permission, or a failure to comply with a condition or limitation
• the steps you must take, or the activities you must stop, to put it right
• the land affected, usually shown edged red on an accompanying plan
• the date the notice takes effect, the date that starts your appeal clock
• the compliance period, how long you have, after it takes effect, to do what it requires

If any of that is missing, unclear or wrong, it is not merely untidy, it can be a ground of appeal in its own right, because the grounds below are in large part a checklist of the ways a notice can be defective.

If in any doubt – STOP – seek help – Planning Geek is here to guide and support you. Reach out to us via this page. A zoom call might be an option.

 

The seven grounds of appeal

An appeal against an enforcement notice is made to the Planning Inspectorate, and section 174 sets out seven grounds, lettered (a) to (g). You can run more than one at once, and in practice most appeals do. It helps to read them as the mirror-image of everything a notice has to get right. Our page on the enforcement appeal grounds takes each one in turn, setting out what you have to prove and what it wins you, along with a further ground that applies only where the breach was demolition in a conservation area. In short:

• Ground (a), that planning permission ought to be granted for what has been done, or the condition ought to be discharged. This is, in effect, a request for retrospective planning permission rolled into the appeal, you are asking the Inspector to grant permission
• Ground (b), that the breach alleged has not, as a matter of fact, happened
• Ground (c), that what happened, even if it did, is not a breach of planning control at all, for example because it was permitted development or not development in the first place
• Ground (d), that it is too late: at the date the notice was issued, the breach was already immune because the enforcement time limit had passed. This is where our guide to enforcement time limits does its work, and note that issuing the enforcement notice is itself one of the few steps that stops the clock, where an information notice such as a section 330 notice does not
• Ground (e), that the notice was not served on everyone it should have been
• Ground (f), that the steps demanded go further than they need to in order to remedy the breach, or the harm to amenity it caused
• Ground (g), that the time allowed for compliance is too short to be reasonable

Grounds (b), (c) and (d) say the notice should not have been issued at all. Grounds (e), (f) and (g) accept there may be a breach but attack the notice as defective or excessive. Ground (a) is different in kind, it concedes nothing about the others but asks for permission anyway. Choosing the right combination, and backing each with evidence, is where good advice earns its keep.

 

An important limit on ground (a) in England

Since 25 April 2024 there has been a restriction on ground (a) that catches people out. In England, you cannot appeal on ground (a), cannot ask for permission through the enforcement appeal, where the notice was issued after you had already made a related planning application for the same development. The idea is to stop a “second bite”. There is a limited escape where that earlier application has long since ceased to be under consideration, and Wales has its own version of the rule which works quite differently. Our page on the enforcement appeal grounds works through both, and the dates that decide them.

This is also why an enforcement warning notice matters. That is the letter inviting you to apply in the first place, and it carries no right of appeal of its own. If you took up the invitation, applied, and the council then issued this notice, check the dates carefully before you rely on ground (a). Whether you regularise by application or defend by appeal is a strategic choice to make deliberately and early, not something to stumble into, because taking one route can close the other.

 

The deadline, and why it suspends the notice

An enforcement-notice appeal must reach the Planning Inspectorate before the date the notice takes effect, the effective date stated on the notice, which is at least 28 days after it is served. There is no discretion to accept a late appeal: unlike much of the planning system, this deadline is hard, and missing it by a day forfeits the right entirely. Post is treated as in time if, in the ordinary course, it would have arrived before the effective date, but relying on the last post is a needless risk.

The reward for appealing in time is significant: a valid appeal suspends the notice, so it does not take effect while the appeal is undecided. You do not have to comply, and you are not committing an offence, in the meantime. That is precisely why the deadline is policed so strictly, it is the gateway to that protection. If a notice has landed, put the effective date at the top of your list and work backwards from it.

 

One other notice runs to a near-identical deadline but ends up somewhere completely different. A section 215 notice, used where land is left in an untidy state, also has to be appealed before it takes effect, and also carries a minimum period of 28 days. The appeal itself goes to the magistrates’ court in England, or to the Welsh Ministers in Wales, rather than to the Planning Inspectorate, and the court cannot take planning policy into account when it decides.

 

Watch two drafting traps

Two quirks of enforcement law reward a careful eye, because they can either rescue or trap you:

• What a notice cannot take away, on ground (f), a long-standing principle that an enforcement notice must not be drafted so as to strip you of use rights you already hold lawfully, whether those come from an existing use or from permitted development. The notice does not have to spell those rights out, because the courts read it as preserving them anyway. If the steps demanded go beyond remedying the actual breach, ground (f) is there to trim them back, though there are real limits on how far that argument can be pushed: see our page on the enforcement appeal grounds
• The mixed-use deemed-permission trap, where land has two unauthorised uses and a notice tackles only one, complying in full can, under the rule known as under-enforcement, be treated as granting permission for the other by default. It is a genuine trap for councils and an occasional windfall for landowners, and a reason to read exactly what a notice does and does not require before acting

Neither point is something to rely on without advice, but both are reasons not to assume a notice is watertight, or that compliance is always the safe option.

The first of those has a companion right that works in your favour once the notice has taken effect. Where a notice puts a stop to a use of land, the use that was lawfully there immediately before the breach can often be taken up again with no planning application at all. That right, and the limits on it, are on our page about reverting to a previous lawful use.

 

If you lose, challenging in the High Court

An Inspector’s decision on an enforcement appeal is not quite the end of the road, but the remaining route is narrow. Under section 289 you may appeal to the High Court, but only on a point of law, not because you disagree with the planning judgement, and only with the court’s permission. The application must be made within 28 days of the decision. Even if you succeed, the court does not substitute its own decision: it sends the case back to the Planning Inspectorate to be decided again. It is a check on legal error, not a second opinion on the merits, and it is not a step to take without proper legal advice.

 

What happens if you do nothing

If you neither appeal in time nor comply, the notice takes effect and the compliance period runs. Once that period has passed without compliance, failing to comply becomes a criminal offence. Our page on what happens if you ignore an enforcement notice works through every consequence in full. The council can prosecute, the penalty on conviction is an unlimited fine, and the court is required to have regard to any financial benefit you gained from the breach. The council can also enter the land and carry out the required works itself, recovering the cost from you, and in serious cases seek a planning injunction from the courts. Doing nothing is therefore the one response that reliably makes things worse. The escalation that follows a notice, and the stop-notice and breach-of-condition powers that can sit alongside it, are covered in our guide to stop notices and breach of condition notices, and the quickest of them, the temporary stop notice, needs no enforcement notice first and can halt the activity for up to 56 days. Watch one of those in particular: appealing an enforcement notice suspends it while the appeal is decided, but it does not suspend a breach of condition notice, which has no appeal at all and keeps running throughout.

 

A note on costs

An enforcement appeal itself carries no fee to the Planning Inspectorate. But where you run ground (a), asking for permission, a fee is payable for the deemed planning application that goes with it, and if that fee is not paid the ground (a) part of the appeal falls away, leaving the rest to be decided without it. Application fees generally are set nationally and explained in our guide to planning application fees. There is one further cost risk worth knowing: at an appeal, an award of costs can be made against a party who behaves unreasonably, and that cuts both ways, against an appellant who runs a hopeless case as much as against a council that has acted unreasonably.

 

Should you appeal, apply, or comply?

Not every notice should be appealed. Sometimes the breach is real, the notice sound, and the sensible course is to comply, or to submit a retrospective application that stands a genuine chance, rather than spend an appeal on a weak ground (a). Sometimes the notice is defective, out of time, or excessive, and an appeal is plainly right. Often the best answer is a combination, or a negotiated way through with the council before the effective date bites. The one thing that is almost never right is to let the deadline pass while you decide.

Because the choice turns on the specific facts, the age of the breach, the planning merits, whether an application has already been made, and exactly what the notice requires, this is the point at which advice pays for itself many times over. If you would like that read on your notice before the clock runs down, you can reach our team via here to help. Whether you use us or not, act on the effective date first and decide the strategy second.

 

 

 

Enforcement notices relevant legislation

The primary sources below are on legislation.gov.uk. Check the “Changes to Legislation” panel at the top of each page for any amendments not yet incorporated into the revised text.

• Town and Country Planning Act 1990, s172, power to issue an enforcement notice where expedient
• Town and Country Planning Act 1990, s173, contents and effect of an enforcement notice
• Town and Country Planning Act 1990, s174, the seven grounds of appeal
• Town and Country Planning Act 1990, s176, the Inspector’s powers on appeal
• Town and Country Planning Act 1990, s289, appeal to the High Court on a point of law

Other Enforcement Sections

 

 

 

 

 

 

Enforcement Notices Page Updated: 9th August 2026