Rylands v Fletcher

The rule in Rylands v Fletcher (1868) LR 3 HL 330 imposes strict liability on a defendant who brings onto his land and accumulates there something likely to do mischief if it escapes, provided: (i) the accumulation constitutes a non-natural use of land; (ii) the thing escapes; and (iii) the escape causes reasonably foreseeable damage. This rule, originally conceived as strict liability for hazardous activities, has been recast by Transco plc v Stockport MBC [2003] UKHL 61 as a sub-species of private nuisance, requiring the claimant to have a proprietary interest in affected land. The rationale was risk allocation—those who create exceptional dangers for profit should bear accident costs—but modern law has narrowed it to extraordinary uses creating special risks.

Rylands v Fletcher (1868) LR 3 HL 330: Established strict liability for escapes from accumulated dangerous things; Lord Cairns LC added the 'non-natural use' requirement. This foundational case involved reservoir water escaping through unblocked mine shafts.

Cambridge Water Co Ltd v Eastern Counties Leather plc [1994] 2 AC 264: Imported foreseeability of damage requirement, aligning the rule with negligence/nuisance remoteness principles. This fundamentally undermined the strict liability character by requiring the defendant to have reasonably anticipated the type of harm.

Transco plc v Stockport MBC [2003] UKHL 61: Redefined the rule as part of private nuisance law, applicable only to isolated escapes from extraordinary and dangerous accumulations. The decision confirmed that ordinary activities (domestic water supply) do not constitute non-natural use and effectively marginalised the rule's practical application.

Read v J Lyons & Co Ltd [1947] AC 156: Established that 'escape' requires the dangerous thing to move from the defendant's control to outside their premises. This excluded injuries occurring on the defendant's own land from the rule's scope.

Courts apply a four-stage test: First, identify whether the defendant brought something onto their land or accumulated it there (naturally occurring substances excluded). Second, assess if this thing would likely cause mischief if it escaped. Third, determine whether the use is 'non-natural'—post-Transco, this means extraordinary and unusual uses creating special risks, not ordinary domestic or commercial activities. Fourth, establish that the thing escaped (moved beyond defendant's control) and caused reasonably foreseeable damage.

Defences include: act of God (extraordinary natural events), act of stranger (unforeseeable third-party interference), consent, statutory authority, and claimant's default. The claimant must have a proprietary interest in the affected land. Most modern claims fail at the non-natural use stage or due to available defences.

Students wrongly assume any 'escape' triggers Rylands—but ordinary domestic leaks or natural hazards don't satisfy the non-natural use test. Many forget the proprietary interest requirement: pedestrians or visitors cannot claim. The foreseeability requirement concerns the type of damage, not the escape itself. Students often conflate Rylands with negligence, missing that Rylands doesn't require proving specific careless conduct. Finally, candidates overstate the rule's importance: post-Transco, it's a narrow residual doctrine within nuisance, not a general strict liability principle.