Enforcement notice: what it contains and how to appeal

A planning enforcement notice tells you what the council says you have done, what it wants undone, and by when. It takes effect on a date at least 28 days after it is served, and an appeal lodged before that date suspends it. Miss the date and the notice takes effect, the right of appeal is gone, and failure to comply becomes a criminal offence.

That deadline is the single most important thing on the document. Everything else can be worked out afterwards.

When an authority may issue one

Section 172 of the Town and Country Planning Act 1990 allows a local planning authority to issue an enforcement notice where it appears that there has been a breach of planning control, and where the authority considers it expedient to issue the notice having regard to the development plan and any other material considerations.

Both limbs matter. A breach alone is not enough. The authority has to form a view that action is expedient, which is why an unauthorised extension that nobody minds may sit for years while a similar one that generates complaints attracts a notice within weeks.

Breach of planning control means carrying out development without the permission required, or failing to comply with a condition or limitation on a permission. For conditions specifically, the authority has the alternative of a breach of condition notice, which carries no right of appeal.

What the notice must contain

A notice is invalid if it fails to do its job, so read it properly. It must specify:

• The matters that appear to constitute the breach of planning control.
• Whether the breach is development without permission or failure to comply with a condition.
• The reasons why the authority considers it expedient to issue the notice.
• The steps required, or the activities that must cease, and the purpose those steps serve.
• The precise boundary of the land, normally by a plan.
• The date on which the notice takes effect.
• The period for compliance, which can differ for different steps.

Copies go to the owner, the occupier and anyone else with an interest in the land that the authority considers materially affected. A landlord can therefore receive a notice about something a tenant did, and enforcement notices are registrable as local land charges, which is how they surface on a sale.

The effective date and the compliance period

The notice states when it takes effect, and that date must be at least 28 days after service. The compliance period runs from the effective date, and the authority sets it according to what the steps require.

Appeals have to be made before the effective date. The Planning Inspectorate applies the deadline strictly, and an appeal received after it cannot be entertained. Diarise the date on the day the notice arrives.

The statutory grounds of appeal

Section 174 sets out the grounds, and an appeal can rely on more than one.

Ground (a) works as a deemed planning application and attracts a fee, and the fee is higher than for an ordinary application. Ground (f) is the workhorse in practice, because it can convert a requirement to demolish into a requirement to modify. Ground (d) turns on the enforcement time limits, which the Levelling-up and Regeneration Act 2023 extended in England for breaches occurring after the date the change took effect, so check both the date of the breach and the limit that applied to it.

Evidence for ground (d) is factual and demanding. Dated photographs, utility bills, council tax records, delivery notes and sworn statements are the currency. Assertion is not.

Ground (b) and ground (c) are often confused. Ground (b) says the thing described did not happen at all, which is a factual denial. Ground (c) accepts the facts and argues that what happened was never development requiring permission, perhaps because it fell within a permitted development class or was not a material change of use. Running both without distinguishing them weakens each.

Ground (e) is narrow and rarely succeeds on its own, because a failure of service only assists an appellant who was substantially prejudiced by it. A neighbouring owner who never received a copy is in a stronger position than the person who built the thing.

What happens on appeal

The notice is suspended while the appeal is undetermined. The Inspectorate decides the appeal by written representations, a hearing or an inquiry, and the inspector has powers to correct or vary the notice where no injustice is caused, to grant permission, to discharge conditions, and to extend the compliance period.

A notice can therefore come back amended rather than quashed. Expect that outcome where the breach clearly occurred and the argument is really about the remedy.

Costs can be awarded in enforcement appeals where a party has behaved unreasonably, in either direction.

Consequences of non-compliance

Once the compliance period expires, failure to comply with the steps is an offence and the authority may prosecute. A conviction in the magistrates court carries a fine, and the court takes account of any financial benefit gained from the breach.

The authority has other tools. It may enter the land, carry out the required steps itself and recover its costs from the owner, and it may apply to the court for an injunction restraining a breach whether or not it has taken any other action.

What to do when one arrives

In order:

1. Record the date of service and the effective date, and put both in the diary.
2. Read the allegation and check whether it matches what is actually on the ground.
3. Gather the evidence of when the development was carried out or the use began.
4. Take advice on which grounds are arguable, and lodge the appeal before the effective date even if the case is still being worked up.
5. Decide whether a retrospective application is the better route, bearing in mind the restrictions that apply to ground (a) where such an application has already been made.
6. Where the merits are strong, prepare the planning statement that the deemed application will need.

Talking to the enforcement officer is usually worthwhile. Authorities have discretion, and a notice is often the result of an unanswered letter rather than a fixed position.

To work out which supporting documents a retrospective or replacement application would need, browse the report types on PlanScope.

PlanScope provides AI-assisted draft reports for planning applications. Reports should be reviewed before submission. We do not guarantee planning approval. This is general guidance, not legal advice. Check the position with your local planning authority or a qualified professional before relying on it.