Enforcement notice appeals: the seven statutory grounds

There are seven enforcement notice appeal grounds, lettered (a) to (g) in section 174(2) of the Town and Country Planning Act 1990, and you must lodge the appeal before the date the notice takes effect. That deadline is absolute. The Planning Inspectorate has no power to accept a late appeal, and a notice that takes effect unchallenged becomes very difficult to resist.

Read the notice first, in full, including the plan. The effective date is normally at least 28 days after service, so the working assumption should be that you have under four weeks to decide which grounds to plead and to gather what supports them.

What the notice must contain

Section 173 sets out what a valid notice says, and a defect in any of it can matter.

The notice must state the matters which appear to constitute the breach of planning control, and which paragraph of section 171A(1) the breach falls within, meaning whether it is development without permission or a failure to comply with a condition. It must specify the steps required or the activities required to cease, the purpose of those requirements, the period for compliance, and the reasons for issuing it. It must identify the land precisely, which in practice means a plan.

Check the description of the breach against what has actually happened on the ground. Notices are drafted from a site visit and a file, and they get details wrong more often than you would expect. A notice alleging the erection of a building where the true breach is a change of use is attacking the wrong thing.

Also check who was served. Section 172 requires service on the owner, the occupier and anyone else with an interest in the land materially affected.

The seven grounds and what each asserts

Plead every ground you can properly support and no more. Grounds are not free: each one has to be argued, and an inspector who finds three grounds hopeless reads the fourth with less patience. Pleading a ground you cannot evidence also exposes you to a costs application.

Note the difference between (b) and (c). Ground (b) is factual, asserting the thing did not happen. Ground (c) accepts the facts and says they are not a breach, for example because the works were permitted development or because there has been no material change of use. Running both is legitimate where the facts are in real dispute, and incoherent where they are not.

Ground (a) and the deemed application

Pleading ground (a) brings a deemed planning application into existence under section 177(5). The inspector then considers, on planning merits, whether permission should be granted for what has been done.

A fee is payable for that deemed application. It is set by the fees regulations, it is higher than the fee for a straightforward application for the same development, and it is indexed, so check the current schedule rather than a figure from an old case. Miss the payment deadline and ground (a) falls away even though the rest of the appeal survives.

Treat ground (a) as a planning application, because that is what it is. The submission needs the same evidence any application would need: drawings of what exists, an assessment against the development plan, and whatever technical material the breach engages. A properly argued Planning Statement addressing the policies the council relied on in its reasons is worth more than a narrative about how the situation arose.

One tactical point. If ground (a) succeeds, permission is granted and the notice is quashed. If it fails, the inspector may still vary the notice under other grounds, so the two lines of argument work together rather than competing.

Ground (d) and the time limits

Ground (d) says the breach became immune from enforcement before the notice was issued.

The historic position under section 171B gave four years for operational development and for change of use to a single dwellinghouse, and ten years for other breaches including most changes of use and breaches of condition. The Levelling-up and Regeneration Act 2023 moves the limit in England to ten years for all breaches. Check the commencement position and which limit applies to your case, because the answer depends on when the breach occurred as well as on what the current law says.

Evidence is everything on this ground, and the burden is on the appellant. Dated photographs, utility bills, council tax records, electoral roll entries, tenancy agreements, delivery records and sworn statements from people who can speak to the period all help. A single statutory declaration with no documents behind it rarely carries a ground (d) appeal.

Continuity matters as much as the start date. A use that stopped for a year and restarted may have broken the clock.

Grounds (f) and (g)

These two are the practical grounds, and they are underused.

Ground (f) says the steps required go beyond what is needed. A notice requiring demolition of an entire building where the breach is its height, or requiring removal of everything where a reduction would remedy the harm, is vulnerable. Inspectors can and do vary notices to require less. Come with an alternative specification rather than a complaint, because the inspector has to be able to write the varied requirement.

Ground (g) says the compliance period is too short. Three months to remove a large structure, relocate a business or rehouse occupiers is frequently unrealistic, and a reasoned programme showing what each stage takes will often secure a longer period. This is the ground most likely to succeed and the one most often forgotten.

What happens to the notice while the appeal runs

Lodging a valid appeal suspends the enforcement notice until the appeal is finally determined or withdrawn. You do not have to comply in the meantime.

Two cautions sit alongside that. A stop notice or a temporary stop notice is a separate instrument and is not suspended by the enforcement appeal, so activity prohibited by one must still stop. And section 285 prevents you from challenging the validity of the notice later, in other proceedings, on any ground that could have been raised in the appeal. The appeal is the one opportunity.

Most enforcement appeals are decided by written representations, following the same sequence as other appeals, and the timetable is set out in the note on written representations appeals. Complex cases go to hearing or inquiry, and the choice of procedure is worth arguing for at the outset.

Getting the grounds wrong

Three mistakes recur. Missing the deadline, which ends the matter. Pleading ground (a) without paying the fee, which loses the merits argument. And pleading ground (d) on a change of use without the documents to prove continuous use over the whole period.

A fourth is subtler. Appellants sometimes argue the council behaved unfairly, which is not a statutory ground at all. Procedural unfairness in the decision to issue a notice belongs in a different forum, and the timing and grounds for that route are covered in the note on judicial review of a planning decision.

Once a notice takes effect and is not complied with, failure to comply is a criminal offence and the council may enter the land and carry out the works itself, recovering the cost from the owner. That is the position the appeal exists to avoid.

To assemble the evidence for a ground (a) case, browse all 66 PlanScope report types and start with the documents the council's reasons actually engage.

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