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Disclaimer: This is not legal advice. Legislation and case law change. Always consult a qualified solicitor for your specific situation.

UK Law Reference
All Guides
Administrative & Public Law
5 steps
Updated March 2026
England & Wales

Applying for Judicial Review

How to challenge a decision of a public body through judicial review in the Administrative Court.

Overview

Judicial review is the process by which the High Court (Administrative Court) supervises the exercise of public power. It allows individuals to challenge decisions of public bodies (government departments, local authorities, tribunals, regulators) on the grounds that the decision was illegal, irrational, or procedurally unfair. Judicial review is a remedy of last resort — you must normally exhaust alternative remedies first.

Who Can Use This Process

  • You are challenging a decision of a public body exercising a public function
  • You have sufficient interest (standing) in the matter
  • You have exhausted alternative remedies (appeals, complaints processes)
  • You are within the time limit (promptly and in any event within 3 months)

Step-by-Step Process

1

Send a pre-action protocol letter

Before issuing proceedings, you must follow the Pre-Action Protocol for Judicial Review. Send a letter before claim to the defendant setting out the decision challenged, why it is unlawful, and the remedy sought. Allow 14 days for response.

Timeframe: 14 days for response
Practical Tips
  • Use the standard template in the Pre-Action Protocol
  • Be specific about the legal grounds
  • Clearly identify the decision and decision-maker
2

Apply for permission (N461 form)

File a claim form (N461) at the Administrative Court with supporting evidence (statement of facts and grounds, witness statements, relevant documents). You must apply promptly and in any event within 3 months of the decision.

Timeframe: Within 3 months of the decision
Practical Tips
  • The 3-month time limit is a maximum — apply as promptly as possible
  • Planning and procurement cases have shorter time limits (6 weeks)
  • Include a costs schedule
3

Permission stage

A judge considers the application on paper and decides whether the claim is arguable. If permission is refused on paper, you can request an oral renewal hearing. If permission is granted, the case proceeds to a full hearing.

Timeframe: 4-8 weeks for paper decision
Practical Tips
  • Around 60% of applications are refused permission on paper
  • Oral renewal gives a second chance if refused on paper
  • The defendant and interested parties are served after permission is granted
4

Full hearing

At the full hearing, the court considers the substantive merits. The court can grant remedies including quashing orders, mandatory orders, prohibiting orders, declarations, and injunctions. The court may also award damages in limited circumstances.

Timeframe: 3-12 months after permission
Practical Tips
  • Hearings are typically half a day to 2 days
  • The court reviews legality, not the merits of the decision
  • Remedies are discretionary — the court may refuse relief even if the claim succeeds
5

Costs and appeal

The losing party normally pays the winning party's costs. Protective costs orders (now costs capping orders) may be available in public interest cases. Appeals go to the Court of Appeal with permission.

Timeframe: Costs assessed after judgment
Practical Tips
  • Consider applying for a costs capping order at the outset
  • Legal aid is available for judicial review in many areas
  • Aarhus Convention costs limits apply in environmental cases

Costs

Court fee for permission£154
Court fee if permission granted£385
Legal representation£5,000–£50,000+ (legal aid may be available)

Important Warnings

The 3-month time limit is strict and runs from the date of the decision, not the date you became aware of it.

Judicial review is a remedy of last resort — failure to use alternative remedies may result in refusal of permission.

Costs risk is significant — the loser normally pays the winner's costs unless a costs capping order is in place.

Useful Links

Frequently asked questions

How long does the applying for judicial review process take?
The end-to-end timeline depends on which stage you're at. Common steps run on these timeframes: "14 days for response"; "Within 3 months of the decision"; "4-8 weeks for paper decision"; "3-12 months after permission". Add court / counterparty response time on top — disputed matters can run months longer than the bare minimum.
How much does it cost?
Main outlays are: Court fee for permission — £154; Court fee if permission granted — £385; Legal representation — £5,000–£50,000+ (legal aid may be available). Court fees often qualify for Help with Fees remission if you're on a low income. Solicitor fees are extra and vary widely — many matters can be done as a litigant in person.
What are the most common mistakes to avoid?
Watch out for: The 3-month time limit is strict and runs from the date of the decision, not the date you became aware of it.; Judicial review is a remedy of last resort — failure to use alternative remedies may result in refusal of permission.; Costs risk is significant — the loser normally pays the winner's costs unless a costs capping order is in place.. If you're unsure on any of these, get advice from a regulated solicitor or a free service like Citizens Advice before acting.
Where can I find the official forms and guidance?
The official sources are: Administrative Court Guide; Pre-Action Protocol; Senior Courts Act 1981 s.31. Always use the forms / guidance from the issuing authority's own site — third-party copies can be out of date.
Can I do this myself without a solicitor?
Yes — many people complete this kind of matter as a litigant in person. The site walks through each step in plain English. A solicitor is recommended if: large sums are at stake, the other side has legal representation, the matter involves criminal liability, children, immigration, or you're unsure on any procedural deadline. Free advice is available from Citizens Advice, Law Centres, and (for some matters) LawWorks pro bono clinics.