How to Challenge a Compulsory Purchase Order (CPO)

A Compulsory Purchase Order (CPO) is a legal mechanism that allows public bodies and certain statutory undertakers to acquire land or property without the owner's consent, provided the acquisition is justified for public benefit. Common purposes include infrastructure development, housing projects, transport improvements and regeneration schemes. While CPOs serve public interests, they can have a significant impact on property owners, tenants, occupiers and other interested parties. Understanding how to challenge a CPO is crucial if you believe your rights have been affected unfairly.

This article explains the legal framework, your rights, key stages, formal objection procedures, legal challenges and practical steps. It avoids unnecessary legal jargon while detailing what the law says and what steps you could consider in practice. It applies to England and Wales.

What Is a Compulsory Purchase Order?

A CPO enables a public authority or certain statutory bodies to compulsorily acquire land or property when it is considered necessary for a project in the public interest. Once confirmed, a CPO removes an owner's ability to refuse sale and typically leads to possession and compensation.

The power to make a CPO is derived from statutes such as the Acquisition of Land Act 1981 and related legislation. Authorities promoting a CPO must prepare a statement of reasons and serve formal notices on affected parties.

Who Can Be Affected and What Rights They Have

Qualifying Persons

You are likely to have rights in the CPO process if you are:

• A land or property owner;
• A leaseholder, tenant, or occupier of land affected;
• Someone with a legal or economic interest in the land that will be affected by the order.

Notices of a proposed CPO must be served on qualifying persons, published in a local newspaper and displayed on or near the land.

Compensation Rights

Compensation is payable under statutory rules to those whose land is acquired. Compensation generally reflects market value and may include disturbance payments and certain statutory allowances. Separate procedures apply to assess or dispute compensation, often through the Upper Tribunal (Lands Chamber).

Step‑by‑Step: How the CPO Process Works

Understanding where and when you can challenge a CPO depends on recognising the main phases of the process:

1. Proposal and Preliminary Consultation
   The acquiring authority informs affected parties about a proposed project and land it wants to acquire.
2. Making the CPO
   The authority resolves to make a CPO and publishes formal notices inviting objections. At least 21 days is allowed for written objections.
3. Submission for Confirmation
   The order is sent to a government minister (or an inspector acting on their behalf) for confirmation. A public inquiry may be triggered if objections are not withdrawn.
4. Decision to Confirm or Reject
   The confirming authority decides whether to confirm, modify or reject the order.
5. Implementation and Compensation
   If confirmed, the authority may take possession of the land and compensation processes proceed.

Formal Objections to a Proposed CPO

When and How to Object

After the CPO is made, notices set out the period within which objections must be submitted. Objections must be:

• In writing;
• Received before the deadline stated in the notice;
• Sent to the confirming authority at the specified address.

There is no prescribed form for an objection letter. However, it should clearly explain:

• Who you are and your interest in the land;
• Why you object to the CPO.

Objections focusing solely on compensation amounts may be disregarded at this stage because compensation disputes are dealt with separately through tribunal procedures.

Types of Objections

Objections typically fall into categories such as:

• Agreement in principle with the scheme but seeking minor modifications to lessen adverse impacts.
• Objections to the location or extent of land being acquired.
• Fundamental objections to the scheme's necessity or justification in the public interest.

Public Inquiries

If valid objections remain, a public inquiry will usually be held. An inspector presides and considers the evidence from the acquiring authority and objectors. At the inquiry:

• Objectors or their representatives may present submissions.
• The inspector may visit the site.
• Relevant issues and evidence are examined before a recommendation is made to the confirming authority.

The inquiry process follows statutory procedure rules that aim to ensure fairness and compliance with legal requirements.

Challenging the Confirmation of a CPO in Court

After a CPO is confirmed, affected parties may challenge its validity in the High Court on limited grounds within a strict timeframe.

Grounds for a Court Challenge

A judicial challenge typically asserts that:

• The authority acted ultra vires (beyond the powers granted by the relevant law);
• There was a failure to follow statutory procedure correctly;
• The decision to confirm was unreasonable or irrational (for example, irrelevant factors were considered or relevant factors were ignored).

Challenges must usually be started within six weeks of confirmation being published. Judicial review claims must be made “promptly” and generally within three months of the decision being challenged.

Possible Court Outcomes

If successful, a court may:

• Quash the confirmation of the CPO;
• Order the confirming authority to reconsider its decision;
• Grant other remedies in appropriate cases.

If unsuccessful, the CPO remains valid and effective.

Practical Considerations and Risks

Act Promptly

Time limits are strict. Missing critical deadlines for objections or judicial challenges can mean losing the opportunity to challenge the order in court.

Seek Expert Guidance

Understanding technical legal requirements and compiling an effective objection or judicial review claim is complex. Professional advisers such as specialist solicitors or surveyors can help frame objections and assess legal merit.

Compensation and Tribunal Rights

If the challenge relates primarily to compensation rather than the validity of the CPO itself, you may need to pursue a reference to the Upper Tribunal (Lands Chamber). That tribunal can resolve disputes over valuation and compensation, but it cannot overturn the CPO.

Common Questions About Challenging a CPO

Can I appeal a CPO like a planning appeal?
No. A CPO cannot be appealed in the same way as a planning decision. The statutory routes are formal objections during the confirmation process and judicial challenges in the High Court.

Does objecting stop the CPO taking effect?
Objecting triggers consideration and often a public inquiry, but it does not necessarily prevent the CPO from being confirmed. Only a successful legal challenge can overturn a confirmed order.

Is compensation separate from challenging the order?
Yes. Objections to compensation are dealt with through separate tribunal procedures, whereas challenges to the lawfulness of the order are pursued in the High Court.

Key Takeaways

Challenging a compulsory purchase order in England and Wales involves understanding statutory rights to object, responding within specified timescales, and potentially pursuing legal challenges if you believe there has been procedural or legal error. Formal objections can influence the confirmation process, while judicial review in the High Court is the principal route to challenge a confirmed order. Compensation disputes are generally handled separately through tribunal proceedings. Acting promptly and seeking expert advice are key to protecting your rights.