Occupiers' liability

Occupiers' liability is a discrete statutory regime imposing duties on those who control premises to safeguard entrants from injury caused by the state of the premises or by dangers present upon them. The regime has two principal pillars: the Occupiers' Liability Act 1957, which governs liability to lawful visitors, and the Occupiers' Liability Act 1984, which regulates duties owed to trespassers and persons other than visitors. The 1957 Act replaced the common law's complex, status-based categories (invitees, licensees, and so forth) with a single 'common duty of care'. The 1984 Act codified and extended the very limited common law duty to trespassers that emerged in British Railways Board v Herrington [1972] AC 877.

Occupiers' liability is thus an instance of Parliament carving out from the general law of negligence a bespoke liability framework sensitive to the special position of landowners and occupiers, whose ability to control the condition of land gives them a corresponding responsibility but whose rights to use their property must also be respected. It differs from ordinary negligence in three key respects: first, liability turns not on principles of foreseeability and proximity but on the occupier's control of premises and the claimant's status as visitor or trespasser; secondly, the statutory standard and defences diverge from negligence doctrine; thirdly, certain policy levers—such as warnings, warnings to children, and exclusion of liability—are expressly addressed by statute.

This note examines the statutory duties in detail, the case law that has interpreted and applied them, and the doctrinal and policy tensions that attend any compromise between security for entrants and freedom for landowners. You should approach occupiers' liability alongside your understanding of the common duty of care in negligence (Weeks 1 and 5), but recognise that the occupiers' statutes constitute a lex specialis displacing, to the extent of their scope, the Caparo framework.

Before 1957, English common law distinguished between invitees (persons entering for purposes in which the occupier had a material interest), licensees (those entering by permission but not in the occupier's interest), trespassers (entering without permission), and contractual entrants. Each category attracted a different standard: an occupier owed invitees a duty to take reasonable care to prevent injury from unusual dangers of which the occupier knew or ought to have known; licensees were owed only a duty to warn of concealed dangers or traps actually known to the occupier; and trespassers were owed no general duty of care save a prohibition on intentional or reckless infliction of harm (Robert Addie & Sons (Collieries) Ltd v Dumbreck [1929] AC 358). The contractual entrant's rights turned on the express or implied terms of the contract.

This taxonomy was criticised as both capricious and doctrinally incoherent. As Lord Denning observed in Slater v Clay Cross Co Ltd [1956] 2 QB 264, the line between invitee and licensee was often elusive, and the rigid distinctions bore little relation to either culpability or policy. The Law Reform Committee's Third Report (1954, Cmd 9305) recommended abolition of the categories in favour of a single common duty of care, and Parliament enacted the recommendation in the Occupiers' Liability Act 1957. The new Act unified invitees and licensees under the single label 'visitor' and established a uniform duty modelled on the negligence standard but tailored to premises.

Trespassers, however, remained outside the 1957 Act. The rule in Addie v Dumbreck proved increasingly indefensible, especially where child trespassers were injured on unguarded railway lines or industrial sites. In British Railways Board v Herrington [1972] AC 877 the House of Lords reformulated the common law duty owed to trespassers as a 'duty of common humanity'—a standard responsive to the gravity of danger, the occupier's knowledge, the cost of precautions, and the purpose and age of the trespasser. The decision was innovative but uncertain in scope. Parliament responded with the Occupiers' Liability Act 1984, which codified and clarified the Herrington duty, balancing humanitarian concern for vulnerable trespassers (notably children) with recognition that occupiers should not be unduly burdened in respect of those who enter unlawfully.

The dual statutory structure reflects an enduring compromise: liberal access rights for lawful visitors coupled with a residual, lower-tier safety net for trespassers, particularly the young and unwitting.

1. Who is an occupier?

Neither statute defines 'occupier'. The term imports the common law meaning: a person who exercises sufficient control over the premises so as to put him in a position to exclude or permit entry and to guard against or remedy dangers. Occupation is a question of fact and degree. Legal ownership is neither necessary nor sufficient. Multiple occupiers may exist concurrently where more than one person exercises relevant control (s 1(2) OLA 1957; s 1(2) OLA 1984).

Wheat v E Lacon & Co Ltd [1966] AC 552 established the modern test. The defendants, a brewery, owned a public house but the manager and his wife had exclusive control of the private living quarters. A paying guest fell on the dark back staircase. The House of Lords held that both brewery and manager were occupiers, each having a degree of control; whether either breached the duty was a separate question (on the facts, neither did). Lord Denning's speech emphasised that 'occupation' is not referable to medieval concepts of possession but to practical control. An independent contractor performing work on site may in some circumstances also be an occupier in respect of the area he controls, though whether his duty is owed qua occupier or tortfeasor is often academic.

2. What are premises?

Both Acts apply to 'premises', which include land, buildings, and 'any fixed or moveable structure' (s 1(3)(a) OLA 1957). This covers scaffolding, ships in dry dock, vehicles, and even lifts and ladders. In Wheeler v Copas [1981] 3 All ER 405, Cantley J held that a five-ton heap of soil was not a 'structure', illustrating the limits of the concept. What matters is whether the claimant's injury arose from the state of the premises rather than from the occupier's or another's activities thereon. The boundary is at times contestable: in Ogwo v Taylor [1988] AC 431 (fire-fighting case), the House of Lords held the fire constituted part of the 'state of premises' but liability arose under ordinary negligence principles rather than the 1957 Act.

3. Who is a visitor?

Under the 1957 Act, a 'visitor' is any person to whom the occupier grants express or implied permission to enter (s 1(2) OLA 1957). The Act also deems certain entrants to be visitors: those entering by virtue of a contract (s 5(1)) and those entering under a legal right of entry (s 2(6)). An invitee or licensee at common law is a visitor; a trespasser is not. Critically, a person who exceeds the scope or terms of the permission ceases to be a visitor and may become a trespasser (though nuanced cases exist: see The Calgarth [1927] P 93).

Permission may be limited by area, time, or purpose. The locus classicus is Lord Atkin's example in Hillen v ICI (Alkali) Ltd [1936] AC 65: 'When you invite a person into your house to use the staircase you do not invite him to slide down the banisters.' In Tomlinson v Congleton Borough Council [2003] UKHL 47, [2004] 1 AC 46, the House of Lords held that swimmers at a lake where swimming was prohibited were not lawful visitors in respect of the swimming activity (though the reasoning on this point is delicate—ultimately the case turned on breach and policy).

The case law on occupiers' liability illuminates the application of the statutory tests, the definition of 'occupier' and 'premises', the special rules for children, warnings, and the balance struck in the 1984 Act.

*Pre-1957 common law: Robert Addie & Sons (Collieries) Ltd v Dumbreck [1929] AC 358 established the harsh rule that an occupier owed no duty of care to trespassers save to refrain from deliberately or recklessly inflicting harm. A four-year-old child was killed in the defendants' wheel machinery. The House of Lords held no duty was owed: the child was a trespasser and the occupier had no duty to fence or warn. The decision epitomised the rigid categories of the old law and was the target of reform efforts culminating in the 1957 Act and later Herrington*.

*Occupation and control: Wheat v E Lacon & Co Ltd [1966] AC 552* clarified who qualifies as an 'occupier'. The brewery owned the pub; the manager had exclusive use of private quarters. A guest fell on an unlit staircase. The House of Lords held both brewery and manager were occupiers, each having a degree of control. On the facts, neither breached the duty (the absence of a bulb did not of itself constitute failure to make the visitor safe). The case shows that multiple occupiers may coexist and that 'occupier' is defined functionally by control, not by estate in land.

*Children and allurement: Glasgow Corporation v Taylor [1922] 1 AC 44* involved a seven-year-old who ate poisonous berries in a public park. The berries were attractive and the danger not obvious to a child. The House of Lords held the occupier liable: the combination of allurement and concealed danger to children imposed a duty to fence or warn. The principle survives in s 2(3)(a) OLA 1957 and underpins much of the case law on child trespassers under the 1984 Act.

*Persons in the exercise of their calling: Roles v Nathan [1963] 1 WLR 1117* concerned chimney sweeps killed by carbon monoxide fumes while sealing a flue. The Court of Appeal held the occupier not liable. Section 2(3)(b) permits an occupier to expect professionals to guard against risks incidental to their work. The sweeps were warned and, as experts, should have appreciated the danger. The case shows the limits of the occupier's duty where the visitor is better placed to manage the risk.

*Warnings: Staples v West Dorset DC (1995) 93 LGR 536* held that an adequate warning can discharge the duty even for an obvious danger. The claimant slipped on algae-covered steps. A warning sign was present. The Court of Appeal held the notice sufficient, given that the danger was also visually obvious. The decision illustrates that s 2(4)(a) does not impose strict liability: the duty is to enable the visitor to be reasonably safe, not to guarantee safety.

*Trespassers and the 1984 Act: British Railways Board v Herrington [1972] AC 877 overruled Addie v Dumbreck* and introduced the 'common humanity' standard. A six-year-old trespasser was burned on an electrified railway line that passed through a gap in the fence. The House of Lords held that the occupier, knowing of the gap, the danger, and the presence of children, owed a duty of reasonable care in the circumstances. The decision was fact-sensitive and controversial; Parliament codified it in the 1984 Act.

*Obvious dangers and policy: Tomlinson v Congleton Borough Council [2003] UKHL 47, [2004] 1 AC 46* is the leading modern authority. The claimant, aged 18, dived into a lake at a country park, struck his head, and was paralysed. Swimming was prohibited and warning signs erected. The House of Lords held no breach of duty under the 1984 Act (the claimant being a trespasser for the purpose of swimming) and, obiter, no breach under the 1957 Act either. Lord Hoffmann emphasised that the law should not impose liability for obvious risks freely and voluntarily undertaken, lest it restrict socially valuable activities and encourage a 'grey and dull' risk-averse culture. The case remains highly influential and controversial, privileging personal autonomy and occupier freedom over paternalism.

*Young trespassers: Keown v Coventry Healthcare NHS Trust [2006] EWCA Civ 39 addressed an 11-year-old who climbed an external fire escape at a hospital and fell. The Court of Appeal held that the defendants owed no duty under the 1984 Act. The structure was not inherently dangerous; the risk arose entirely from the boy's (obvious) dangerous activity. Longmore LJ distinguished between a danger due to the state of the premises and one due to what the claimant chooses to do. The case signals a restrictive interpretation of the 1984 Act, in line with Tomlinson*, and underscores judicial concern about imposing excessive burdens on occupiers.

See practice questions below.

See further reading below.