Marcic v Thames Water Utilities Ltd [2003] UKHL 66

Mr Marcic's property suffered repeated flooding from overloaded public sewers. He sued Thames Water in nuisance and under the Human Rights Act. The House of Lords held that the statutory scheme under the Water Industry Act 1991 provided the exclusive remedy for inadequate drainage, precluding common law nuisance claims and satisfying Convention rights.

Facts

Mr Peter Marcic owned property at 92 Old Church Lane, Stanmore, which suffered repeated flooding from overloaded public sewers operated by Thames Water Utilities Ltd. From 1992, his property experienced regular flooding of both surface water and foul sewage due to increased housing development in the catchment area overwhelming the sewer capacity. The flooding affected his gardens and threatened his house, requiring him to construct private flood defences at a cost of £16,000. Despite complaints from 1992, no remedial work was undertaken by Thames Water until 2003.

Background to the Flooding Problem

The sewers, adequate when laid in the 1930s, became overloaded due to subsequent housing development. Thames Water had no power to refuse new connections under section 106 of the Water Industry Act 1991. The flooding incidents increased in frequency, from requiring half an hour of heavy rainfall in 1992 to only fifteen minutes by 2001.

Issues

The principal issues were:

• Whether Mr Marcic had a common law cause of action in nuisance against Thames Water for failing to construct new sewers to prevent flooding
• Whether Thames Water had acted incompatibly with Mr Marcic’s Convention rights under Article 8 (respect for private and family life) and Article 1 of the First Protocol (protection of property) of the European Convention on Human Rights

Judgment

The Claim in Nuisance

The House of Lords unanimously rejected the claim in nuisance. Lord Nicholls held that the Water Industry Act 1991 established a comprehensive statutory scheme for enforcement of sewerage undertakers’ obligations. The common law of nuisance should not impose obligations inconsistent with this statutory scheme.

Lord Hoffmann explained that while cases such as Sedleigh-Denfield v O’Callaghan, Goldman v Hargrave, and Leakey v National Trust established duties on landowners to take reasonable steps to prevent nuisance, these concerned disputes between neighbouring landowners as individuals. The position was fundamentally different for statutory sewerage undertakers providing public utilities on a large scale, where decisions about capital expenditure and priorities affected all customers and raised questions of public interest unsuitable for determination in ordinary litigation.

The Human Rights Act Claim

The House of Lords also rejected the claim under the Human Rights Act 1998. Lord Nicholls noted that while direct interference with a person’s home falls within Article 8 and Article 1 of the First Protocol, the statutory scheme struck a reasonable balance between individual interests and the community as a whole. Parliament had entrusted enforcement decisions to the Director General of Water Services, subject to judicial review.

Lord Hope emphasised the importance of the margin of appreciation accorded to national legislatures in striking such balances, citing the Grand Chamber decision in Hatton v United Kingdom. The statutory scheme, with its enforcement mechanism administered by an independent regulator and subject to judicial review, was Convention-compliant.

Concern Regarding Compensation

Lord Nicholls expressed concern about the uncertain position regarding compensation for those suffering flooding while awaiting remedial works. He suggested that those enjoying effective drainage should bear the cost of compensating those whose properties suffer flooding as a consequence of the inadequacy of the sewerage system.

Implications

This decision established important principles regarding the relationship between common law remedies and statutory schemes governing public utilities. It confirmed that where Parliament has created a comprehensive regulatory framework with enforcement mechanisms, courts should not impose parallel common law duties that would undermine the statutory scheme. The decision also affirmed that Convention rights do not require remedies by way of private law actions where an effective statutory scheme exists for balancing competing interests, provided that scheme includes appropriate oversight mechanisms such as independent regulation and judicial review.

Verdict: Appeal allowed. The House of Lords set aside the Court of Appeal's decision and dismissed Mr Marcic's claims in nuisance and under the Human Rights Act 1998, holding that the statutory scheme under the Water Industry Act 1991 provided the exclusive remedy for failures to provide adequate drainage.

Source: Marcic v Thames Water Utilities Ltd [2003] UKHL 66