Austin v Miller Argent (South Wales) Ltd

Factual and Procedural Background

Plaintiff resides at her home in The City, near an open-cast coal mine operated by Defendant at a land reclamation site approximately two kilometres east of the town centre. The reclamation project aims to restore the natural landscape damaged by centuries of mining and industrial activity, with conditions on development permission requiring noise and dust suppression measures.

Plaintiff opposes Defendant's activities and was involved in unsuccessful group litigation proceedings against Defendant, which failed due to insufficient particulars demonstrating common issues and reasonable prospects of success. Plaintiff now pursues a private nuisance claim alleging ongoing dust and noise interference affecting her enjoyment of her property located approximately 450 metres from the development site. She claims Defendant's failure to comply with planning conditions causes this nuisance, seeking damages for past harm and an injunction against future wrongdoing.

After a one-day hearing, the High Court judge refused Plaintiff's application for a protective costs order ("PCO") but granted permission to appeal. The judge made findings relevant to the appeal, including Plaintiff's modest means, lack of public funding, prohibitively expensive insurance, a reasonably arguable case, and the potential benefit to others nearby, though the wider public impact was uncertain.

Legal Issues Presented

1. Whether Plaintiff's private nuisance claim falls within the scope of Article 9.3 of the Aarhus Convention, thereby attracting protections against prohibitively expensive litigation costs.
2. Whether the EU Directive 2011/92/EU on environmental impact assessments engages with Plaintiff's claim and provides a basis for cost protection.
3. Whether the court has discretion or obligation to grant a protective costs order in environmental claims under domestic law, international obligations, or EU law.
4. The applicability and interpretation of the Aarhus Convention and related case law in the context of private nuisance claims involving environmental harm.

Arguments of the Parties

Appellant's Arguments

• The cost of litigation is prohibitively expensive without a protective costs order (PCO), and the court should grant one to enable access to justice.
• Reliance on the Aarhus Convention and EU Directive 2011/92/EU supports the obligation to ensure proceedings are not prohibitively expensive.
• Private nuisance claims related to environmental harm fall within Article 9.3 of the Aarhus Convention, which protects public participation in environmental matters.
• The enforcement of planning conditions designed to mitigate environmental harm should be considered within the scope of environmental review procedures.
• Domestic courts should interpret their discretionary powers in harmony with international obligations to grant PCOs where necessary.

Respondent's Arguments

• Private nuisance claims are archetypal private law claims aimed at protecting private property rights and fall outside the scope of Article 9.3 of the Aarhus Convention.
• The enforcement of planning conditions is not directly raised in Plaintiff's claim and does not constitute enforcement of EU rights.
• There exist alternative, less expensive statutory remedies such as complaints to planning authorities and statutory nuisance procedures enforced by local authorities.
• The Directive 2011/92/EU applies only to the assessment and granting of development consent, not to enforcement or ongoing compliance.
• Domestic law principles, including the strict public interest test from Corner House Research, preclude granting a PCO where the claimant has a private interest in the outcome.

Table of Precedents Cited

Precedent	Rule or Principle Cited For	Application by the Court
Austin v Miller Argent (South Wales) Limited [2011] EWCA Civ 928	Requirements for Group Litigation Orders, including need for common issues and reasonable prospects of success.	Referenced to explain why Plaintiff's previous group litigation application failed.
Morgan and Baker v Hinton Organics (Wessex) Limited and CAJE [2009] EWCA Civ 107	Consideration of whether private nuisance claims fall within Article 9.3 of the Aarhus Convention.	Used to support that private nuisance claims may engage environmental public interest and Article 9.3 protections.
Walton v Scottish Ministers [2012] UKSC 44	Respect due to Aarhus Convention Compliance Committee decisions on public participation standards.	Cited to acknowledge the authority of Compliance Committee findings on environmental procedural rights.
Hunter v Canary Wharf [1996] 1 AC 655	Private nuisance protects private property rights.	Respondent relied on this to argue Plaintiff's claim is private law and outside Aarhus protections.
Barr and others v Biffa Waste Services Limited [2012] EWCA Civ 312	Evidence of breach of planning conditions relevant to establishing nuisance.	Supported the link between environmental planning conditions and private nuisance claims.
R (Edwards) v Environment Agency [2013] 3 CMLR 18	Purpose of Aarhus cost protection provisions to enable public participation in environmental matters.	Used to argue scope and intention of Article 9 protections.
R (Corner House Research) v Secretary of State for Trade and Industry [2005] EWCA Civ 192	Framework and conditions for granting Protective Costs Orders emphasizing public interest and absence of private interest.	Guided the court's analysis of PCO criteria under domestic law.
Eweida v British Airways plc [2009] EWCA Civ 1025	Reaffirmation that a private interest generally precludes PCO but with some flexibility.	Considered in assessing Plaintiff's private interest in the claim.
R (Marina Litvinenko) v Secretary of State for the Home Department [2013] EWHC 3135	Recognition that private interest does not necessarily bar PCO if significant public interest exists.	Supported the view that private interest is a factor, not an absolute bar to PCO.
R (on the application of Prokopp) v London Underground Ltd [2003] EWCA Civ 961	Scope of Directive 2011/92/EU limited to initial consent and environmental impact assessment, not ongoing enforcement.	Relied upon to reject Plaintiff's argument that the Directive covers enforcement of planning conditions.
R v Home Secretary ex parte Brind [1991] 1 AC 696	Limits on courts' power to enforce international treaty obligations through exercise of statutory discretions.	Used to reject argument that courts are obliged to grant PCO under Aarhus Convention obligations.
Rantzen v Mirror Group [1994] QB 670	International conventions may be used to resolve ambiguities or guide judicial discretion.	Supported the view that Aarhus Convention is a factor in exercising discretion on costs orders.

Court's Reasoning and Analysis

The court began by examining whether Plaintiff's private nuisance claim falls within the scope of Article 9.3 of the Aarhus Convention, which protects access to justice in environmental matters. The court acknowledged the absence of direct authority but relied on prior case law and Compliance Committee findings confirming that private nuisance law can be part of environmental law within Article 9.3, provided the claim has significant public environmental benefits beyond private interests.

The court established two key requirements for Article 9.3 applicability: (1) a close link between the complaint and environmental matters regulated by the Convention, and (2) a claim that, if successful, confers significant public environmental benefits. The court found Plaintiff's claim linked indirectly to planning conditions designed to mitigate environmental harm but doubted the public benefit was sufficiently significant or certain.

Regarding the EU Directive 2011/92/EU, the court held that it applies to the assessment and granting of development consent and does not cover enforcement or ongoing compliance with planning conditions. Therefore, the Directive does not engage with Plaintiff's private nuisance claim.

The court then considered the interplay between domestic law and international obligations. While the Aarhus Convention is not directly incorporated into domestic law and does not impose a direct obligation to grant a PCO, it is a relevant factor in exercising judicial discretion. The court referred to established principles that courts should interpret domestic law consistently with international obligations only to resolve ambiguities, not to override statutory discretions.

Applying domestic law principles on PCOs, particularly the Corner House Research framework, the court emphasized the importance of public interest and the absence of a private interest in granting PCOs. While Plaintiff's modest means and environmental concerns were noted, her claim had a strong private interest element. Furthermore, the court noted the availability of alternative, less expensive statutory remedies and the respondent's prior costs exposure in related litigation.

In light of these factors, the court concluded that Plaintiff's claim did not justify a PCO. The judge's refusal to grant the order was not in error, and the appeal was dismissed.

Holding and Implications

The appeal is DISMISSED. The court upheld the refusal of a protective costs order in respect of Plaintiff's private nuisance claim alleging environmental nuisance from Defendant's mining operations.

This decision means Plaintiff must bear the risk of costs in pursuing her claim. The ruling confirms that private nuisance claims with limited and uncertain public environmental benefit do not automatically attract cost protections under the Aarhus Convention or related EU law. The court reaffirmed that domestic principles governing PCOs require a significant public interest and minimal private interest, and international obligations under the Aarhus Convention are factors to consider but do not compel granting a PCO.

No new precedent was established beyond clarifying the application of the Aarhus Convention to private nuisance claims and the scope of the Directive in this context.