Civil Procedure Rules explained: History, structure and key parts in UK litigation

What are the Civil Procedure Rules?

The Civil Procedure Rules, universally shortened to the CPR, are the procedural code for civil litigation in England and Wales. They cover everything from issuing a claim to enforcing a judgment, supported by Practice Directions that sit alongside the rules and carry equivalent practical force.

They are not merely technical guidance. They determine what a case costs, how long it takes, what evidence a party can rely on, and what happens when someone misses a deadline. A meritorious claim can be lost on procedure, which is why the CPR occupies more of a litigator’s working life than most substantive law.

Scotland and Northern Ireland operate separate procedural systems. Nothing in this guide travels across those borders.

Why were the Civil Procedure Rules introduced?

To replace a fragmented and expensive system. Before 1999, civil litigation ran on two parallel regimes: the Rules of the Supreme Court and the County Court Rules, widely criticised for complexity, delay and cost.

Lord Woolf’s Access to Justice reports in the mid-1990s diagnosed a system that was too slow, too expensive and too adversarial, and in which the parties rather than the court controlled the pace. The Civil Procedure Rules 1998 came into force in April 1999 as the answer. The instrument.

The central innovation was the overriding objective, coupled with active judicial case management. Litigation stopped being something the parties conducted at their own speed and became something the court ran.

What is the overriding objective?

The requirement in CPR Part 1 that the court deal with cases justly and at proportionate cost. It governs how every other rule is interpreted and applied.

Dealing with a case justly includes ensuring the parties are on an equal footing, saving expense, dealing with the case in ways proportionate to the money involved and the complexity of the issues, ensuring it is handled expeditiously and fairly, allotting it an appropriate share of the court’s resources, and enforcing compliance with rules and orders. CPR Part 1.

The duty is not the court’s alone. Parties and their legal representatives are required to help the court further the overriding objective, which is the hook for a great deal of judicial criticism of tactical litigation behaviour.

The 2024 amendment that changed it

On 1 October 2024 the overriding objective gained a new limb. CPR 1.1(2)(f) now provides that dealing with a case justly and at proportionate cost includes, so far as is practicable, promoting or using alternative dispute resolution.

That is a genuine shift. ADR is no longer something the court hopes the parties will consider; it is part of the definition of civil justice itself. Anyone working from a pre-October 2024 summary of Part 1 has an incomplete picture of the rule.

Can the court force parties into mediation?

Yes, since 2024. CPR 3.1(2)(o) gives the court the general case management power to order the parties to engage in alternative dispute resolution.

This reversed nearly two decades of settled understanding. Halsey v Milton Keynes General NHS Trust [2004] EWCA Civ 576 had been read as prohibiting courts from compelling ADR, leaving judges able only to encourage it and to penalise unreasonable refusal in costs. In Churchill v Merthyr Tydfil County Borough Council [2023] EWCA Civ 1416, handed down on 29 November 2023, the Court of Appeal held that courts do have the power to stay proceedings for, or order, parties to engage in a non-court dispute resolution process.

The power is not unlimited. Churchill sets two conditions: the order must not impair the very essence of the claimant’s fundamental right to a judicial hearing, and it must be proportionate to the legitimate aim of settling the dispute fairly, quickly and at reasonable cost. The Court of Appeal deliberately declined to lay down a checklist, taking the view that it would be undesirable to give judges a score sheet.

The Civil Procedure (Amendment No. 3) Rules 2024 wove Churchill into the code from 1 October 2024:

• CPR 1.1(2)(f) adds promoting or using ADR to the overriding objective
• CPR 1.4(2)(e) makes ordering or encouraging ADR, and facilitating its use, part of active case management
• CPR 3.1(2)(o) gives the express power to order parties to engage in ADR
• CPR Parts 28 and 29 require the court, when giving directions in fast, intermediate and multi-track cases, to consider whether to order or encourage ADR
• CPR Part 44 brings a party’s conduct in relation to ADR into the costs discretion

How are claims allocated between tracks?

By value and complexity, into one of four tracks. The intermediate track is the newest, introduced alongside the expansion of fixed recoverable costs.

Allocation is not purely arithmetic. The court considers the complexity of the issues, the number of parties, the volume of evidence and the importance of the claim to non-parties, so a modest claim raising a difficult point can be allocated upwards.

How do fixed recoverable costs work?

They cap what a winning party can recover from the loser, regardless of what was actually spent. CPR Part 45 sets the figures, and the regime expanded substantially in October 2023 to cover most claims up to £100,000.

The commercial consequence is that costs recovery becomes predictable and, frequently, materially lower than the costs incurred. That changes the economics of a case before a single document is drafted, and it has to be assessed at the outset rather than at the point of assessment.

Two practical points. Whether a claim falls inside or outside the regime is now a strategic question in itself, influencing how a claim is pleaded and valued. And where fixed costs apply, the gap between recoverable and actual costs falls on the client, which is a conversation to have at the retainer stage rather than after judgment.

What do the pre-action protocols require?

Exchange of information before proceedings are issued, so the parties understand the dispute and can try to resolve it without litigating.

The Practice Direction on Pre-Action Conduct applies generally, with specific protocols for particular claim types such as personal injury, professional negligence, construction and debt. Practice Direction.

Non-compliance carries costs consequences. A party that issues without following the applicable protocol, or that ignores a reasonable request for information, can expect the court to reflect that in its costs order even if the claim ultimately succeeds. With ADR now embedded in the overriding objective, pre-action conduct around settlement attempts is likely to attract more scrutiny rather than less.

What is the difference between Part 7 and Part 8?

Part 7 is the standard procedure for claims involving disputed facts. Part 8 is the alternative for claims where there is unlikely to be a substantial dispute of fact.

Part 8 relies primarily on written evidence and proceeds without extensive statements of case or disclosure, which makes it faster and cheaper where the real question is one of legal interpretation. It is commonly used for declaratory relief, certain trust and probate applications, and applications where the court is being asked to construe a document. CPR Part 8.

Choosing wrongly is costly. A Part 8 claim that turns out to involve a genuine factual dispute will usually be directed to continue as if commenced under Part 7, with the delay and cost that implies.

What are the disclosure obligations?

Under standard disclosure in CPR 31.6, a party must disclose the documents on which it relies, those that adversely affect its own case, those that adversely affect another party’s case, and those that support another party’s case.

That last pair is what surprises clients. Disclosure is not a process of assembling helpful material; it is an obligation to hand over the documents that damage you. CPR Part 31.

A separate regime applies in the Business and Property Courts. Practice Direction 57AD, which grew out of the Disclosure Pilot, replaces standard disclosure there with an issue-based model requiring the parties to agree a List of Issues for Disclosure and to select from defined disclosure models. Practitioners moving between the B&PC and other courts need to be clear which regime they are in, because the obligations and the preparatory work differ substantially.

How does the court control expert evidence?

Tightly. Under CPR Part 35, permission is generally required before expert evidence can be relied on, and the expert owes an overriding duty to the court rather than to the instructing party.

That duty overrides any obligation to the person paying the fee, and it is the foundation of the court’s willingness to receive partisan-sounding evidence at all. The court may also direct that evidence be given by a single joint expert, particularly in lower-value claims where two competing experts would be disproportionate. CPR Part 35.

Expert evidence is frequently decisive in professional negligence, clinical, engineering and construction disputes, which makes the permission stage more strategically important than its procedural framing suggests.

How do Part 36 offers work?

Part 36 creates a self-contained settlement regime with automatic costs consequences designed to make refusing a reasonable offer expensive.

A defendant who beats a claimant’s Part 36 offer at trial, or a claimant who fails to obtain a judgment more advantageous than a defendant’s offer, faces adverse costs consequences from the end of the relevant period. A claimant who matches or beats its own offer may be entitled to indemnity costs, enhanced interest and an additional amount. CPR Part 36.

The regime is prescriptive, and that is the trap. An offer that does not comply with the formal requirements is not a Part 36 offer and does not carry the consequences, however commercially sensible its terms. Compliance is checked at the point the costs argument arises, which is far too late to fix it.

What happens if you miss a deadline?

You apply for relief from sanctions under CPR 3.9, and the court applies the three-stage test from Denton.

Under CPR Part 3 the court has wide case management powers, including setting timetables, limiting evidence, striking out statements of case and imposing sanctions for non-compliance. Where a sanction has already bitten, relief is not automatic.

Mitchell v News Group Newspapers Ltd [2013] EWCA Civ 1537 produced an approach widely regarded as too severe, and Denton v TH White Ltd [2014] EWCA Civ 906 restated it as a structured three-stage exercise: assess the seriousness and significance of the breach; consider why it occurred; then evaluate all the circumstances so as to deal with the application justly, including the need for litigation to be conducted efficiently and at proportionate cost and the need to enforce compliance.

Denton also warned against opportunism. Parties who refuse consent to reasonable extensions, or who take tactical advantage of trivial defaults, risk costs sanctions themselves.

When is a claim an abuse of process?

Where proceedings are vexatious, duplicative, or an attempt to relitigate what has already been decided. CPR 3.4 gives the court power to strike out on that basis.

In Johnson v Gore Wood & Co [2002] 2 AC 1, the House of Lords confirmed that the court must prevent misuse of its procedures to protect the integrity of the justice system, while cautioning against a mechanical approach: the question is whether, in all the circumstances, a party is misusing the process by raising a matter that could and should have been raised before.