Judicial review costs risk for objectors

A judicial review is the only way a third party can challenge a planning permission, and the time limit is six weeks from the grant. That is the first thing to understand about the costs risk: the decision about whether to spend money has to be made in days, by people who have just found out they lost.

The second thing is what a claim can achieve. Judicial review tests the legality of the decision, not whether it was the right decision. If the claim succeeds, the usual outcome is that the permission is quashed and the application goes back to the council, which may lawfully grant it again having corrected the error. Winning does not stop the development.

This is general guidance rather than legal advice, and anyone considering a claim needs a solicitor with planning litigation experience, engaged quickly.

What a claim involves and what it does not decide

The grounds are legal ones: that the authority misinterpreted a policy or a statutory provision, failed to have regard to a material consideration, gave inadequate reasons, acted unfairly in procedure, reached a conclusion no reasonable authority could reach, or breached an environmental or habitats requirement.

What is not a ground is disagreement with the planning judgement. The court will not weigh the harm against the benefits again, because that is the authority's job. Many objectors approach a solicitor with a strong sense that the decision was wrong and no identified error of law, and the advice they get is disappointing for that reason.

There is also a preliminary hurdle: standing. A claimant needs a sufficient interest, which neighbours and local groups usually have, though a group formed for the purpose should expect its constitution and membership to be examined.

The environmental costs protection regime

For claims that fall within the Aarhus Convention, the Civil Procedure Rules cap what an unsuccessful claimant can be ordered to pay. The published figures are £5,000 for an individual claimant and £10,000 for other claimants, with the amount recoverable from a defendant capped at £35,000.

Two qualifications matter. The cap is not automatic: the claim form has to state that the claim is an Aarhus Convention claim, and a defendant can dispute that characterisation. And the court can vary the caps, upwards or downwards, where the rules allow, which is why a claimant is expected to give information about their financial resources.

Whether a planning challenge qualifies depends on its subject matter. Many do, because they concern decisions with environmental effects, but the question is decided case by case and should never be assumed. Check the current rules and figures with your solicitor, because both have been amended more than once.

Caps on liability and how they are varied

The cap limits adverse costs. It does not limit your own legal fees, and those are usually the larger number.

The point about one set of costs is worth understanding. In planning cases the courts have generally allowed only one set of costs against an unsuccessful claimant, with a second set awarded to an interested party only where there is a separate issue or interest justifying it. That is a practice rather than a rule, and it can go the other way.

Permission stage and the costs at each step

A claim runs in stages, and the exposure builds.

1. Pre-action correspondence, where the authority is invited to respond before proceedings. Cost: your solicitor's time.
2. Issuing the claim, with grounds and evidence. Cost: court fee plus drafting, which is the largest single piece of work.
3. The authority and the developer file an acknowledgment of service with summary grounds. The costs of preparing that can be recoverable against you if permission is refused.
4. A judge decides permission on the papers. If refused, you may ask for reconsideration at an oral hearing, unless the claim was certified as totally without merit.
5. If permission is granted, the case proceeds to a substantive hearing, with detailed grounds, evidence and counsel on both sides. This is where costs escalate.

A claim that stops at a paper refusal is far less expensive than one that reaches a hearing, which is why realistic advice at stage one is worth paying for. A claim certified as totally without merit ends there, and the certification itself signals how the court viewed it.

Crowdfunding and its treatment by the court

Crowdfunding is common and it is not a way round the costs rules.

Money raised from supporters is relevant when the court considers whether to vary a costs cap, because the rules allow the court to look at the resources available to a claimant including support from others. So a well-funded campaign can find its cap raised.

Separately, a person who funds litigation can in principle be exposed to a non-party costs order. That risk is greatest for someone controlling and financing a claim rather than for a small donor, but anyone organising a fund should take advice on how it is structured and what donors are told.

Be straightforward with supporters about all of this. A campaign that raises money on the basis that liability is fixed at a low figure, and then finds the cap varied, has a problem beyond the litigation.

Alternatives that cost nothing

For most objectors, the work that changes outcomes happens before the decision rather than after it. None of the following requires a solicitor.

• Making a written representation that engages the material considerations, with evidence rather than assertion
• Asking a ward councillor to request that the application be determined by committee rather than under delegated powers
• Speaking at committee, where the authority's procedure allows it
• Asking the case officer specific questions about consultee responses while the application is live
• Following the discharge of conditions after permission, and commenting on what is submitted
• Reporting a breach of condition or of the approved drawings to the enforcement team, with dates and photographs
• Engaging in the local plan process, which sets the policies the next application will be judged against
• Complaining through the authority's own procedure, and then to the Local Government and Social Care Ombudsman, where the objection is to how the authority behaved rather than to the planning merits

The Ombudsman route deserves a note of realism. It can find maladministration and recommend a remedy, but it cannot overturn a planning permission.

As an illustrative example, a residents' group unhappy with a committee decision takes advice within the six week window and is told there is an arguable reasons challenge but a weak one. They decide instead to fund a short technical note on drainage for the condition discharge stage, and to press for a construction management plan with specified delivery hours. That is a smaller sum spent on the part of the process still open to influence.

For background on what a council expects an applicant to submit, the 66 report types by category sets it out, drafting costs are on the pricing page, and reform news can be followed on the planning law updates timeline. Enter your postcode on PlanScope to see which reports a site is likely to need.

This is general guidance, not legal advice; check the position with a solicitor experienced in planning litigation before relying on it, and note that costs caps and court fees are revised periodically. PlanScope provides AI-assisted draft reports for planning applications. Reports should be reviewed before submission. We do not guarantee planning approval.