Costs protection for community legal challenges
The cap fixes your exposure to the other side's costs but not your own. How to claim it correctly, prepare the schedule of resources, and judge whether to issue.
The Aarhus costs cap planning rules are the reason community legal challenges happen at all. Without them, a residents' association that lost a judicial review would face the council's costs and the developer's costs, both unlimited, and nobody sensible would start. With them, a qualifying environmental claim carries a known maximum exposure to the other side's costs, fixed by the Civil Procedure Rules.
That is a real protection and it is not a complete one. The cap covers what you may be ordered to pay the other side. It does not cover your own solicitor and counsel, and it can be varied by the court on application.
Why costs deter most community challenges
In ordinary litigation the losing party pays the winner's costs, assessed on the standard basis. A defended planning judicial review involves a council's legal team, usually a developer joined as an interested party with its own legal team, and two sets of costs that a group of neighbours cannot absorb.
That arithmetic, rather than the law, is what ends most challenges. It is also why the question to ask first is not "do we have a case" but "what is the worst number, and who signs for it". A claim has to be brought by a person or a body with legal personality, so an unincorporated residents' group needs either to incorporate or to put forward a named individual claimant, and that individual carries the liability.
Six weeks is the time limit for a planning challenge, so these decisions get made quickly. Our note on judicial review as a last resort for objectors covers the grounds and procedure, and this article deals with the money.
The capped costs regime for environmental claims
The United Kingdom is party to the Aarhus Convention on access to information, public participation and access to justice in environmental matters. Article 9 requires that access to environmental justice is not prohibitively expensive. The Civil Procedure Rules implement that through a costs capping regime for claims identified as Aarhus Convention claims.
A planning judicial review will ordinarily fall within it, because a decision about development and land use is a decision on a matter relating to the environment within the meaning of the Convention. Challenges to local plans, to environmental permits and to decisions under the habitats and environmental impact assessment regimes fall within it too.
The protection applies only if the claim is identified correctly. The claimant must state in the claim form that the claim is an Aarhus Convention claim and file a schedule of financial resources. A defendant who disputes the characterisation says so in the acknowledgement of service, and the court decides. Fail to make the statement and you are in the ordinary costs regime with no cap at all.
Applying the cap and when it can be varied
The cap is not automatic in the sense of being untouchable. The court may vary or remove it on application, and the test applied is whether doing so would make the proceedings prohibitively expensive for the claimant, judged against the claimant's own financial resources and what it would be reasonable for them to bear.
| Element | Position under the regime |
|---|---|
| Claimant's exposure to the defendant's costs | Capped at the figure in the rules, lower for an individual than for an organisation |
| Defendant's exposure to the claimant's costs | Capped at the figure in the rules |
| Claimant's own legal costs | Not capped and payable whatever the outcome |
| Multiple defendants and interested parties | The cap applies to the total, not per party |
| Variation | Available on application, tested against the claimant's resources |
| Mischaracterised claim | No cap, ordinary costs rules apply |
The figures themselves are set out in the rules and have been amended since the regime was introduced, so take them from the current version of the rules rather than from an article or a judgment summary. What has not changed is the structure: a lower cap for an individual claimant, a higher one for an organisation, and a separate cap on what the claimant can recover if successful.
Two consequences of that last point. Winning does not make you whole, because recovery from the defendant is capped too. And a claim run on a conditional fee arrangement has to work within that ceiling, which affects whether solicitors will take it.
Claimant and defendant caps
The schedule of financial resources is the document that determines how the court views your position, and it is the one claimants prepare least carefully. It covers the claimant's own assets and income, and also any financial support the claimant is likely to receive from others, including crowdfunding and contributions from supporters.
Prepare it properly and honestly. An understated schedule that later proves inaccurate invites an application to vary the cap upwards, and the court's response to apparent concealment is unsympathetic. A schedule that shows modest resources and a funded litigation budget is not a weakness, because the regime exists for exactly that claimant.
Where the claimant is an incorporated body with no assets, expect scrutiny of whether the structure was created to limit exposure, and be ready to explain the membership and the funding.
Crowdfunding and its complications
Crowdfunding works, and it introduces three complications worth planning around.
The funds raised can be taken into account when the court considers whether the costs would be prohibitively expensive, so a well subscribed appeal can weaken the case for the lower cap. Raise what you need rather than the maximum you can.
The named claimant carries the liability regardless of where the money came from, and contributors have no obligation to top up if costs exceed the fund. Make that explicit on the fundraising page, and hold the money in an account the claimant controls or in the solicitor's client account.
And a public fundraising page is a public document. The description of the claim will be read by the defendant and may be put before the court, so write it as a factual account of the legal grounds rather than as a campaign against the development.
An illustrative example. A parish council and a group of residents challenge a permission on the ground that no appropriate assessment was carried out under the habitats regulations. The parish council is the claimant, states the claim as an Aarhus Convention claim, files a schedule of financial resources showing its reserves, and raises a contribution from residents towards its own legal fees. The exposure to the other side is fixed at the organisation cap, and the parish council knows its worst case before it issues. This example is illustrative.
Deciding whether the claim is arguable
Permission from the court is needed before a judicial review proceeds, and most planning claims that fail do so there. So the honest question at the outset is whether a judge will consider the ground arguable, and that depends on the ground rather than on the strength of local feeling.
The practical steps, inside the six weeks:
- Obtain the decision notice, the officer's report and the committee minutes in the first week.
- Take a view on grounds from a solicitor or counsel who does planning work, with the documents in front of them.
- Send a pre-action protocol letter setting out the grounds and asking for a response within a stated short period.
- Read the response before issuing, because it will often disclose a document or a reasoning step that either strengthens or kills the ground.
- Decide, and if the answer is no, say so to supporters plainly and return any funds raised on that basis.
A claim issued to buy time, or to register objection, is the worst use of the regime. It consumes the cap, exhausts the goodwill of the funders and makes the next claim harder.
Alternatives that cost nothing
Three routes carry no costs risk at all and are underused.
The Local Government and Social Care Ombudsman investigates maladministration in how a council handled an application. It cannot overturn a permission, but its findings are published and councils do change procedures in response.
Enforcement of conditions costs nothing to pursue. Every condition on the permission is enforceable, and a complaint evidenced with dates, times and photographs is far more likely to be acted on than a general one. Where the authority's own conduct is the issue, complaining about how a council handled an application is the route.
And the most effective route of all is earlier: engaging while the plan is being prepared and while the scheme is still being designed. Our note on getting involved before applications are submitted sets out how, and taking part in an appeal as an interested party covers the position if the scheme is refused and appealed.
This is general guidance, not legal advice; check the position with your local planning authority or a qualified professional before relying on it. If you are trying to work out which documents should have accompanied an application, the PlanScope report index lists the report types by category.
PlanScope provides AI-assisted draft reports for planning applications. Reports should be reviewed before submission. We do not guarantee planning approval.
Frequently asked questions
What is an Aarhus Convention claim?
A judicial review or statutory review claim falling within Article 9 of the Aarhus Convention, which covers access to justice in environmental matters. A planning challenge ordinarily qualifies, as do challenges to local plans, environmental permits and decisions under the habitats and environmental impact assessment regimes. The costs capping rules in the Civil Procedure Rules then apply.
Does the cap cover my own legal fees?
No. It caps what you may be ordered to pay the other side, and separately caps what you can recover from them if you win. Your own solicitor and counsel are payable whatever the outcome. That asymmetry is why claims on conditional fee arrangements have to be structured carefully, since recovery is limited even on success.
How do I make sure the cap applies?
State in the claim form that the claim is an Aarhus Convention claim and file a schedule of financial resources. A defendant who disputes the characterisation raises it in the acknowledgement of service and the court decides. Omit the statement and you fall into the ordinary costs regime with no cap, which is an avoidable and expensive error.
Can the court increase the cap?
Yes, on application. The test is whether varying it would make the proceedings prohibitively expensive for the claimant, judged against the claimant's own resources and what it is reasonable for them to bear. An understated schedule of financial resources that later proves inaccurate is the most common trigger for such an application.
Does crowdfunding affect the cap?
It can. Funds raised, and support the claimant is likely to receive, are relevant to whether costs would be prohibitively expensive, so a heavily subscribed appeal can weaken the case for the lower cap. Raise what the claim needs rather than the maximum possible, and make clear on the page that contributors are not liable for any shortfall.
Sources and further reading
This article is general guidance about the planning system in England and, where stated, the rest of the UK. It is not legal or professional advice. Check your local planning authority’s validation requirements and take professional advice for your specific site.