Third party options once permission has been granted

Once planning permission has been granted, a neighbour cannot object after planning permission granted in any way that reopens the merits. England has no third party right of appeal. Only the applicant can appeal, and only against a refusal or a condition. The consultation period is over, the decision is made, and the planning balance has been struck.

What remains is narrower and more technical: a six week window to ask a court whether the decision was lawful, and then a long period in which the conditions on the permission are the only real lever. Both are worth understanding, because people routinely spend effort on the first when the second would have served them better.

Why objectors have no right of appeal

Section 78 of the Town and Country Planning Act 1990 gives a right of appeal to the applicant where permission is refused, granted subject to conditions, or not determined in time. It gives nothing to anyone else. The policy reason is that the planning system is a regulatory system between the state and the applicant, with the public interest represented by the local planning authority rather than by individual objectors.

That has one practical consequence worth absorbing early. The point at which your objection carries weight is before the decision, not after it. A detailed, policy based objection submitted during the consultation period, and a short clear speech at committee, are worth more than any amount of correspondence afterwards.

If the application was refused and the applicant appeals, you become an interested party with a right to be heard, which is a different and more useful position. Our note on taking part in an appeal as an interested party sets out how that works.

The six week window to go to court

The court route is a review of legality, not a rehearing. Two separate procedures exist and the one that applies depends on who made the decision.

Six weeks is short, and the clock does not stop while you look for a solicitor or raise funds. The first steps are to obtain the decision notice and the officer's delegated report or committee report the week they are published, read them against the policies cited, and take advice on grounds within the first fortnight. A pre-action protocol letter has to be sent and answered inside the same six weeks.

Permission from the court is needed before the claim proceeds, and the threshold is an arguable case. Most planning claims that fail, fail at that stage.

Grounds a court will entertain

The court will not consider whether the decision was right. It will consider whether it was lawfully reached. The grounds that succeed fall into recognisable groups:

• Misinterpretation of planning policy, where the decision maker read a policy wrongly as a matter of law rather than applying it differently from how you would.
• Failure to take into account a mandatory material consideration, or taking into account something legally irrelevant.
• Breach of a statutory procedure, such as a failure to carry out required publicity or to consult a statutory consultee.
• Failure to comply with the environmental impact assessment regulations, including an unlawful screening opinion.
• Failure to carry out an appropriate assessment under the habitats regulations where a protected site could be affected.
• Inadequate reasons, which is a limited ground on a grant of permission but a real one where the officer's report departs from policy without explanation.
• Predetermination or apparent bias, which is harder to establish than most objectors expect and is not made out by councillors expressing views in advance.

An illustrative example. A council grants permission for 90 dwellings adjacent to a special area of conservation in a nutrient neutrality catchment, with the officer's report recording that nutrient neutrality "will be addressed by condition". No appropriate assessment is carried out. That is a procedural failure capable of founding a claim, because the habitats regulations require the assessment before permission, not afterwards. A disagreement about whether 90 dwellings is too many for the village is not. This example is illustrative.

Costs exposure and the protection available

Litigation costs are what stop most community challenges, and reasonably so. In an ordinary claim the losing party pays the winner's costs, and a defended planning judicial review can run well beyond what a residents' group has raised.

Environmental claims have a cost capping regime, because the United Kingdom is party to the Aarhus Convention on access to environmental justice. For a qualifying claim the Civil Procedure Rules cap the amount a claimant can be ordered to pay and the amount recoverable from the defendant, with a lower cap for an individual claimant than for an organisation. The figures are set out in the rules and have been amended, so check the current version before relying on a number quoted in an older article.

Three practical points. The cap applies only if the claim is correctly identified as an Aarhus Convention claim in the claim form. The court can vary the cap on application, so it is a strong protection rather than an absolute one. And the cap does not cover your own legal costs, which you pay whatever happens.

Crowdfunding works, with two complications: the court can take the funds raised into account when considering the cap, and a group with no legal personality needs a named individual claimant who carries the risk.

Monitoring the conditions instead

This is the route most objectors should take and most do not. The permission is only lawful as implemented in accordance with its conditions, and conditions are enforceable.

Read the decision notice and list every condition with a trigger. Conditions requiring details to be approved before work starts. Conditions limiting hours of operation, deliveries, lighting or noise. Conditions requiring landscaping to be planted in the first planting season and replaced if it dies. Conditions restricting the use to a stated class. Conditions requiring a management plan to be complied with.

Then watch for breaches and report them with evidence: dates, times, photographs, a short factual note. Councils have discretion about whether to enforce, and enforcement is a judgement about expediency rather than a duty, so a well evidenced complaint is far more likely to be acted on than a general one. Where the authority's own handling has gone wrong, complaining about how a council handled an application is a separate process with its own outcomes.

Discharge of conditions as a further chance to comment

When the developer applies to discharge a pre-start condition, the application and its supporting documents go onto the public register. There is usually no statutory requirement to consult neighbours, and most councils do not.

But nothing stops you watching the register for the site reference and writing in. Comments on a discharge application are material where they bear on whether the submitted details satisfy the condition. A landscape scheme that omits the hedge the condition required, a construction management plan with a lorry route down an unsuitable street, an acoustic report that models the wrong plant: all of these are legitimate points, and officers do read them.

The same applies to applications under section 73 to vary a condition, and to non-material amendment applications under section 96A. Section 73 applications are publicised in the ordinary way and are a full opportunity to comment. Section 96A applications are not, which is why keeping an eye on the register matters.

Where the developer's own consultation record is in issue, the Statement of Community Involvement submitted with the application is the document that should record who was consulted and what they said.

What is left once the time limit passes

After six weeks the permission is secure against challenge. Three things remain available.

The Local Government and Social Care Ombudsman can investigate maladministration in how the council handled the application. It cannot overturn the permission, and it rarely awards more than a modest sum, but its findings carry weight with councils and sometimes change how the next application is handled.

Conditions remain enforceable for the life of the development, and a breach of condition notice can be served at any time while the breach continues.

And the permission itself expires if not implemented within the time stated, commonly three years. A permission that lapses cannot be revived, so a scheme that stalls may simply fall away. Keep a note of the expiry date, because a developer who begins work shortly before it to keep a permission alive is doing something lawful that is nevertheless worth knowing about.

If you are trying to understand which documents should have been submitted in the first place, the PlanScope report index lists the report types by category.

This is general guidance, not legal advice; check the position with your local planning authority or a qualified professional before relying on it. Detailed grounds and procedure are covered in our note on judicial review as a last resort for objectors.

PlanScope provides AI-assisted draft reports for planning applications. Reports should be reviewed before submission. We do not guarantee planning approval.