Development contrary to a condition and article 3(4)

Article 3(4) of the GPDO 2015 is four lines long and it removes permitted development rights more often than Article 4 directions do. It provides that nothing in the Order permits development contrary to any condition imposed on a planning permission granted otherwise than by the Order itself.

So a condition on a 1987 permission, buried in a decision notice nobody has read since, can defeat a Class A extension today. The article 3(4) gpdo condition problem turns up most often on estates, farm buildings and converted commercial units, and it is usually discovered after the works are built.

What article 3(4) provides

The drafting matters. Article 3(4) bites on development that would be contrary to a condition imposed by a planning permission granted or deemed to be granted under Part 3 of the Town and Country Planning Act 1990, other than permission granted by the Order.

Three features follow from that wording.

The condition does not have to mention permitted development. A condition restricting the use of a building to a named class, with nothing said about the GPDO, still prevents a change of use under Part 3 if the change would put the building outside the permitted class.

The condition has to be lawfully imposed and still in force. A condition discharged, varied under section 73 or expressed to expire has no continuing effect.

And article 3(4) operates automatically. There is no direction to make, no consultation, no compensation, and nothing on the local land charges register beyond the decision notice itself.

Sitting alongside it, article 3(5) removes permitted development in connection with an existing building whose construction was unlawful, or an existing use that is unlawful. That pairing is the one that catches sites with a live breach, because it removes the rights the owner would otherwise have used to tidy the position up.

Why a breach removes the right to rely on the order

Practitioners sometimes read article 3(4) as though it were an interpretive tie-break. It is not. It is an exclusion.

Where a proposed operation or change of use would be contrary to a condition, the Order simply does not grant permission for it. The development is unauthorised from the first day, and the enforcement clock starts then. There is no partial reliance: an extension that breaches a condition restricting extensions is unlawful in its entirety, not merely to the extent of the excess.

Two consequences matter for advice.

First, a certificate of lawfulness for proposed development under section 192 will be refused, and the refusal is a matter of law rather than discretion. Applying for one on a site with a restrictive condition and hoping the officer misses it is a poor strategy, because the refusal becomes part of the planning history.

Second, the rest of the Order can still be available. Article 3(4) removes only what the condition catches. A condition restricting the use of a building does not prevent the owner installing solar panels under Part 14, and the 200 millimetre projection limit for solar panels remains the operative constraint on those works.

Conditions that restrict use rather than works

Use conditions are where the case law sits.

The question courts ask is whether the condition, read as a whole and in context, shows a clear intention to exclude the statutory rights that would otherwise apply. In Dunnett Investments the Court of Appeal considered a condition confining use to a business class "and for no other purpose whatsoever", and held that the words were sufficient to exclude changes of use that the GPDO would otherwise permit. The addition of "whatsoever" did real work.

A condition that merely describes the permitted use, without any exclusionary language, is weaker. "The premises shall be used as a builder's yard" restricts the use, and whether it also excludes a Part 3 change depends on whether the reasonable reader would understand it as removing those rights.

The interpretive approach is the one set out by the Supreme Court in Trump International and applied in Lambeth: read the condition as a reasonable reader would, in the context of the permission as a whole, giving words their natural meaning and avoiding a strained construction in either direction.

Class R gives a practical example of the interaction, because the flexibility it offers on a farm building can be wholly removed by a condition on the permission that created the building. The mechanics are set out in Class R and flexible commercial use of a farm building.

Reading a condition imposed decades ago

Old decision notices are terse and the reasons are often more informative than the conditions.

A working method:

1. Obtain the full decision notice, not the summary on the council's online register, which frequently omits conditions.
2. Read the reason given for the condition. A reason referring to highway safety on a specific junction tells you what the condition was meant to control.
3. Check the approved plans and any section 52 or section 106 agreement of the same date, because obligations and conditions were often used interchangeably before 1990.
4. Check whether a later permission superseded the earlier one. A subsequent full permission for the same development, implemented, can displace the earlier conditions.
5. Check for a section 73 permission varying the condition, which will appear as a separate application reference.

Pre-1948 uses and permissions granted under earlier legislation need separate treatment, and a condition purporting to control a use that was already established may be ineffective.

One honest caution: on conditions from the 1960s and 1970s, the drafting is frequently ambiguous enough that reasonable advisers disagree. Where the sum at stake justifies it, counsel's opinion costs less than an enforcement appeal.

Regularising the position before further work

The route depends on what is wanted.

Section 73 of the 1990 Act allows an application to vary or remove a condition. The council considers only the question of the condition, and grants a new permission subject to different conditions if it agrees. It cannot be used to change the description of development, and it cannot revive a permission whose time limit has expired.

Section 96A handles non-material amendments, which will rarely help with a restrictive condition because removing one is usually material.

Where the works are already built, a retrospective full application under section 73A is the honest route. A Planning Statement setting out the planning history, the reason for the original condition, and why the circumstances that justified it have changed is what carries a section 73 application. Councils remove conditions where the original justification has fallen away, for example a condition controlling parking on a street since made subject to a residents' scheme.

Enforcement exposure while a breach subsists

A breach of condition is enforceable for ten years from the date the condition was first breached, and for a continuing breach the period runs from the breach rather than from the grant.

Two instruments are available to the council. An enforcement notice carries a right of appeal to the Planning Inspectorate on the grounds in section 174. A breach of condition notice under section 187A does not: the only challenge is judicial review, the defences are narrow, and non-compliance is a summary offence. Authorities increasingly reach for the second because it is quicker and harder to resist.

While a breach subsists, article 3(5) may also be removing other permitted development rights on the site, which compounds the exposure. A client who wants to add an outbuilding while a use breach is live should be told that the outbuilding may itself be unlawful.

The Article 4 position is a separate question and is often confused with this one, particularly in HMO cases where both may apply, as set out in moving between C3 and C4 and the Article 4 problem.

Advising a purchaser on a site with a live breach

Due diligence on this point costs very little and is rarely done properly.

Obtain every decision notice in the planning history rather than the register summaries. Read every condition on every implemented permission. Check whether the current use matches the permitted use. Check the enforcement register and ask the council directly whether any file is open. Ask the seller for certificates of lawfulness and, where the answer is a statutory declaration, treat it as weaker evidence than a certificate.

Where a breach is found, the options are price adjustment, a retention pending regularisation, a condition of sale requiring a certificate or a section 73 permission before completion, or indemnity insurance. Insurance covers the financial consequence of enforcement. It does not make the development lawful, and it will not satisfy a funder who needs the site developed.

This is general guidance, not legal advice; check the position with your local planning authority or a qualified professional before relying on it. A lawful development certificate is the only formal way to confirm that works are lawful.

PlanScope provides AI-assisted draft reports for planning applications. Reports should be reviewed before submission. We do not guarantee planning approval. Enter your postcode on PlanScope to see which documents a section 73 or retrospective application is likely to need.