Reverting to a previous lawful use after an enforcement notice

 

Something on your land has been enforced against. Before that happened the land was being used for something else, and that earlier use was perfectly lawful. The obvious question is whether you can simply go back to it, or whether you have to start again with a planning application.

Where what you want back is a use of land, the answer is often that you can go back without applying for anything at all. Section 57(4) of the Town and Country Planning Act 1990 says that where an enforcement notice has been issued, planning permission is not required to use the land for the purpose it could lawfully have been used for if the development in the notice had never been carried out. The right arrives on its own. You do not apply for it and nobody grants it to you.

This statutory right is different from the common-law question of whether an earlier use has been abandoned. Section 57(4) is a specific reverter rule triggered by enforcement; abandonment asks whether a lawful use has itself been lost on the facts.

There are real limits, and one of them catches people out badly: you get to go back one step, not several. This page explains what the right actually gives you, the five step test the Court of Appeal set out in 2026, and what to do when the council will not accept that it applies.

 

What section 57(4) actually gives you

 

It helps to be clear about what this right is not. It is not a grant of planning permission, and it is not a defence to the enforcement notice. The notice still stands, you still have to do what it tells you to do, and ignoring it is a criminal offence.

What the right does is tell you what you are allowed to do next, once the thing complained of has stopped. Ordinarily, starting a use of land needs planning permission. Here it does not, because the law treats the earlier use as never having gone away.

There is a close relative in the same section that is worth knowing about. Where planning permission was granted for a limited period only, section 57(2) lets the land go back at the end of that period to whatever it was normally used for beforehand, again with no new application. That one does not need an enforcement notice at all.

 

The five step test

 

In March 2026 the Court of Appeal set out how this is meant to be worked through, in a case called Titchfield Festival Theatre. Lord Justice Holgate reduced it to five steps, and they are meant to be taken in order:

• identify the development that the enforcement notice says was a breach, on the land the notice covers
• identify how that land was being used immediately before that breach
• assume the breach never happened
• on that assumption, ask whether the earlier use was lawful
• if it was lawful, no planning permission is needed to go back to it

Written out like that it looks almost too simple. The whole difficulty sits in the third step.

 

Step three is where the argument is usually won

 

Step three asks you to pretend the breach never took place, and then look at the land as it would have been. Lawyers call that a counter factual. In ordinary language: the question is not what the site looks like today, but what it would have looked like if the thing that was enforced against had never been built or started.

That sounds obvious and it is routinely got wrong. In the case above, an inspector had decided that the enforced against development had swallowed up neighbouring land and created a fresh chapter in the site history, so the older rights had been extinguished. The Court of Appeal held that this reasoning was beside the point, because the new state of affairs had been created by the very development you are being told to disregard.

The practical consequence is worth holding on to. Nobody can defeat your right to go back by pointing at a state of affairs that the breach itself produced. If someone argues that way, they have skipped step three. If the argument turns on how the site is divided up, our page on what a planning unit is is the place to start.

 

You can only go back one step to your previous lawful use

 

This is the limit that disappoints people most, so it is worth being blunt about it.

You go back to the use that was happening immediately before the development in the notice, and only if that use was itself lawful. You cannot keep tracking backwards through the site history looking for the last use that was lawful. If the use immediately before the breach was itself unlawful, this right gives you nothing whatsoever, however lawful things were before that.

The rule was put plainly by the High Court in Newland. You may go back to the use running immediately before the development the notice is about, and then only if that use was lawful. The same case makes a related point about older permissions: if a use had already been replaced by something else before the breach happened, the permission for it was spent, and you cannot jump back over the use in between to reach it.

So a site that has had two unauthorised changes in a row is in a much weaker position than one that had a single unauthorised change on top of a settled lawful use.

 

Four limits, and all four have to hold

 

Before you rely on any of this, check all four of these. If one fails, the right does not apply:

• an enforcement notice must actually have been issued, so this does nothing for you while a council is merely investigating or threatening
• the breach has to be development, not a breach of a planning condition, so a breach of condition notice does not open this door
• it reaches a use of land only, and never building works, so it will not let you keep or rebuild a structure
• it reaches only the land the notice covers, and not the rest of your holding

The second and third of those are the ones people trip over. If the council has enforced against a building rather than against a use, this is not the provision that helps you.

 

Going back of your own accord is a fresh breach

 

This is the trap that catches the most people, and it works the opposite way round to what nearly everyone assumes. Section 57(4) is a rescue that an enforcement notice switches on. It is not a standing right to return to an earlier use whenever you choose to.

Picture a very common situation. A use was started without permission years ago, nobody took action, and enough time went by that it became lawful because it was too late to enforce against it. Later the land changed to something else. The owner then decides to go back to the older use, reasoning that because that use was lawful, returning to it must be lawful too.

That reasoning fails. In Newland the High Court held that where land has changed away from a use that had become safe from enforcement, changing back to that use is itself a fresh material change of use, and it needs planning permission. The earlier use does not sit there waiting for you. The use that came in between destroys your right to pick the old one up again.

Section 57(4) can still get you back to that use, but only if the council serves an enforcement notice against the later use, and only if the older use was the one running immediately before it. If you make the change back yourself, with no notice in place, the council can serve an enforcement notice on you for doing exactly that.

That is uncomfortable, but it is the honest position. If you are relying on this right, you are relying on an enforcement notice existing. Where there is no notice, the safe route is to apply for planning permission in the ordinary way, or to apply for a certificate first and find out where you stand before anything changes on the ground.

 

It does not have to be the whole site, or a single previous use

 

Two arguments are commonly run against people relying on this right, and the Court of Appeal rejected both.

The first is that the earlier lawful use had to cover exactly the same piece of land as the notice. It did not. The court found nothing in the Act requiring that, and the judgment uses the example of an earlier permission covering roughly ninety per cent of the notice land: the right still works. You will still see this argued the other way round, usually resting on an over reading of an older High Court case called Stone. That case was decided in 2014 on four particular fields in Cornwall, where the notice covered a good deal more land than the earlier permission did. Before he reached the point the judge said plainly that no court had yet given an authoritative account of when section 57(4) applies, and that his was not the case in which one should be attempted. Stone is therefore confined to its own facts. It is not authority for the idea that the land before and the land after have to be the same.

The second is that because the Act uses the singular, purpose and use, there could only ever be one earlier use. That was rejected too. Under the Interpretation Act 1978 the singular includes the plural, so a site that had more than one lawful use running before the breach can go back to all of them.

 

What it costs

 

Relying on this right costs nothing, because there is no application to make and therefore no fee to pay.

The cost, if there is one, comes from proving it. Councils do not always agree that the right applies, and a buyer, a lender or a licensing authority may want something firmer than your own view. The usual answer is to apply for a certificate confirming that the use is lawful, which does carry a fee, and which puts the burden on you to show it on the balance of probability. Our certificate of lawfulness of existing use page explains how that works, and the current figures are on our planning application fees page.

It is worth thinking about whether you need that certificate at all. If nobody is disputing the point and you are not selling or borrowing against the land, you may be paying to prove something nobody is challenging.

 

One extra trap sits here. Reverting to a lawful use, or otherwise ending the use which the notice attacked, does not necessarily mean every requirement of the enforcement notice has been satisfied. If the notice also requires physical reinstatement, removal works or another separate step, that requirement remains relevant unless it has been complied with, formally relaxed under section 173A, or displaced to the extent that a later retrospective planning permission is inconsistent with it under section 180.

 

If the council will not accept it

 

There is no appeal against section 57(4) itself, for the simple reason that there is no decision to appeal against. Nobody refuses you this right. What happens instead is that a council acts as though you do not have it, and you have to establish that you do. There are three routes, and which one fits depends on where you are.

If the enforcement notice is still within its appeal period, the point can be taken on the enforcement appeal, and our page on enforcement appeal grounds sets out how the grounds work and how to choose between them. The deadlines there are short and unforgiving.

If the notice period has passed, apply for a certificate of lawfulness. A refusal of a certificate does carry a right of appeal, and unusually there is no deadline for bringing it. Our guide to planning appeals covers the routes and the deadlines that do bite elsewhere.

There is also a long standing rule about how a notice must be written. A notice must not be drafted so widely that it takes away rights that the breach never affected, and a right to go back to an earlier lawful use is exactly such a right. If a notice appears to stop you doing something you were always entitled to do, that is a point to raise rather than accept. Our page on enforcement notices explains what a notice can and cannot require.

 

Going back to a previous lawful use under permitted development is different

 

There is a separate right that sounds similar and is not the same thing. Where a building has been temporarily changed to another use under permitted development rights, there are provisions that let it go back again without a planning application. Our page on Class U covers one of them.

The difference matters. Those rights come from the permitted development order, they depend on the earlier change having been lawful in the first place, and they have nothing to do with enforcement. Section 57(4) only ever switches on once an enforcement notice has been issued.

 

You cannot use this as a stepping stone into permitted development

 

Here is a tempting idea that does not work. If section 57(4) tells you the land could lawfully be used for an earlier purpose, could you treat that earlier purpose as your starting point, and then use permitted development rights to change from it into something else, without ever actually going back to it?

No. The High Court decided that exact question in Noquet. A former public house had been enforced against after it was turned into a home. The owner asked for a certificate saying that a change from a pub to a shop would be permitted development, on the basis that the pub use was lawful because of section 57(4). The claim failed.

The reason is that permitted development rights work on the use a building actually has, not on a use it could go back to. The court’s reasoning was that a right to revert hands you a historic use on paper, not an existing use on the ground, and a permitted development right that works on a change from one existing use to another has nothing to bite on. The order also switches itself off altogether where the existing use is unlawful.

Two things follow. If you want the permitted development rights that attach to the earlier use, you have to genuinely resume that use first, and a token gesture will not do. And you can still apply for planning permission for the change you actually want, because on a planning application the fact that you could have gone back to the earlier use is a point you are allowed to make. It is only the certificate route that shuts it out.

One word of caution about putting this together with the section above. Actually resuming the earlier use, when no enforcement notice has been served, may itself be a breach. That is an awkward corner of the law, and it is one to take advice on rather than assume your way through.

 

England and Wales

 

Section 57 applies in England and Wales, and subsection (4) is the same in both. The amendments waiting to be made to section 57 affect the opening subsections only and are Welsh, so nothing pending changes the right described here.

What does differ between the two countries is the enforcement law sitting around it, and in particular how long a council has to take action in the first place. Our page on enforcement time limits sets out the current position for England, which changed in April 2024, and where Wales is different.

 

See also our guide to the types of planning application.

 

Relevant legislation

 

The links below go to legislation.gov.uk. Always open the Changes to Legislation panel on each page before relying on the text.

Section 57(4) of the Town and Country Planning Act 1990 reads:

Where an enforcement notice has been issued in respect of any development of land, planning permission is not required for its use for the purpose for which (in accordance with the provisions of this Part of this Act) it could lawfully have been used if that development had not been carried out.

• Section 57, Town and Country Planning Act 1990, when planning permission is required, and the reverter rights in subsections (2), (3) and (4)
• Section 172, Town and Country Planning Act 1990, the power to issue an enforcement notice
• Section 174, Town and Country Planning Act 1990, appeal against an enforcement notice
• Section 191, Town and Country Planning Act 1990, certificate of lawfulness of an existing use
• Section 6, Interpretation Act 1978, why the singular in section 57(4) includes the plural
• Article 3, Town and Country Planning (General Permitted Development) (England) Order 2015, which withholds permitted development rights where the existing use is unlawful

Other Planning Application Sections

 

Previous lawful use Page Updated: 29th August 2026