Spartan Steel and Alloys Ltd v Martin & Co (Contractors) Ltd [1972] EWCA Civ 3

Roadworks contractors negligently damaged an electricity cable supplying Spartan Steel’s factory, causing physical damage to a melt in an arc furnace and loss of production profits during a 14½ hour outage. The Court of Appeal limited recovery to physical damage and directly consequential profit, excluding pure economic loss.

Facts

Spartan Steel and Alloys Ltd operated a stainless-steel manufacturing factory in Birmingham supplied with electricity via a direct cable from the Midlands Electricity Board. In June 1969, Martin & Co (Contractors) Ltd were carrying out roadworks about a quarter of a mile away using a power-driven excavating shovel.

The contractors had obtained plans showing the position of underground cables and mains but, through lack of reasonable care by their workmen, the shovel damaged the electricity cable feeding Spartan Steel’s works. The Electricity Board shut down the power while the cable was repaired.

The factory operated on a continuous 24‑hour cycle. The power was cut off at 7.40 p.m. on 12 June 1969 and not restored until 10.00 a.m. on 13 June 1969, a period of 14½ hours, during which the factory suffered loss.

At the moment of the outage, an arc furnace was in operation, melting metal into ingots. Continuous electric power was necessary to maintain temperature. When the power failed, there was a risk of solidification and damage to the furnace lining. The plaintiffs used oxygen to melt and tap out the material, thereby avoiding greater physical damage, but the resulting product was of reduced value. The physical damage to the melt was assessed at £368. Had the melt been properly completed, the plaintiffs would have earned a profit of £400.

Because of the 14½ hour interruption, the plaintiffs were also unable to put four further melts through the furnace and claimed a further £1,767 in lost profits.

Martin & Co admitted negligence. The sole dispute at trial and on appeal was the extent of recoverable damages.

Issues

The key legal issues were:

• Whether, in negligence, the defendants were liable for the plaintiffs’ economic loss comprising (a) £400 profit on the spoiled melt and (b) £1,767 profit on the four further melts prevented by the power cut.
• Whether economic loss unconnected to physical damage is recoverable in negligence, or whether such loss is irrecoverable as a matter of legal principle and policy.
• Whether an alleged doctrine of “parasitic damages” permitted recovery of otherwise irrecoverable economic loss when attached to a valid claim for physical damage.

Judgment

The Master of the Rolls (Lord Denning)

Rejection of “parasitic damages”

Counsel for Spartan Steel argued that some losses, though not independently recoverable, could be recovered as “parasitic” on an actionable head of damage. Relying on ancient lights cases and Buckley LJ’s statement in Horton v Colwyn Bay, he contended that the profits on the additional four melts were recoverable by attachment to the physical damage claim.

Lord Denning firmly rejected this concept:

“I do not like this doctrine of “parasitic damages”. I do not like the very word “parasite”. A “parasite” is one who is a useless hanger-on sucking the substance out of others. “Parasitic” is the adjective derived from it. It is a term of abuse. It is an opprobrious epithet. The phrase “parasitic damages” conveys to my mind the idea of damages which ought not in justice to be awarded, but which somehow or other have been allowed to get through by hanging on to others.”

He concluded:

“I reject, therefore, Mr. Bathurst’s argument based on “parasitic damages.”

Economic loss and policy

Lord Denning considered prior authorities on economic loss and noted the difficulty of pigeonholing them as either “no duty” or “too remote”. He suggested that courts should instead address, case by case, whether economic loss should be recoverable as a matter of policy in the particular relationship.

He identified several policy considerations in the context of electricity, gas, and water supplies:

1. Consistency with statutory undertakers’ liability: Cases such as Atkinson v Newcastle & Gateshead Waterworks, Clegg, Parkinson & Co v Earby Gas Co, and Stevens v Aldershot Gas, Water and District Lighting Co indicated that statutory undertakers are not liable in damages to consumers for economic loss caused by supply failures, even if due to negligence, although they may be liable for direct physical damage. Lord Denning observed that Electricity Boards had never been held liable for economic loss only and stated that, in line with legislative policy, contractors should not bear broader liability than the Boards themselves.
2. Nature of the hazard: Loss of electricity supply is a common hazard that may occur through accident, weather, or negligence and tends to affect many people mainly through inconvenience and some economic loss, usually for short periods. He considered that most people accept this risk, sometimes using stand‑by systems or insurance, and “put up with it” without litigation.
3. Multiplicity and manageability of claims: If pure economic loss from supply cuts were generally compensable, there would be numerous claims, some inflated or false, difficult to verify (e.g. whether machines were in use or whether losses were mitigated by extra work later). He considered it better to exclude such claims altogether when unconnected with physical damage.
4. Distribution of risk: He viewed it as preferable for the risk of economic loss from such hazards to be borne by the community of those who suffer relatively small losses, rather than concentrated on one negligent contractor confronted with the aggregated claims.
5. Protection for deserving cases: He emphasised that where negligence causes actual physical damage to person or property, that damage is recoverable, together with economic loss truly consequential upon it, citing British Celanese v Hunt and S.C.M. (United Kingdom) Ltd v Whittall & Son Ltd.

On that basis, Lord Denning held that Spartan Steel could recover for the physical damage to the melt (£368) and the consequential profit on that melt (£400), but not the £1,767 representing profits from the four further melts, which he characterised as pure economic loss independent of physical damage.

He concluded:

“These considerations lead me to the conclusion that the plaintiff should recover for the physical damage to the one melt (£368), and the loss of profit on that melt consequent thereon (£400): but not for the loss of profit on the four melts (£1,767), because that was economic loss independent of the physical damage. I would, therefore, allow the appeal and reduce the damages to £768.”

Edmund Davies LJ (dissenting)

View that pure economic loss can be recoverable

Edmund Davies LJ framed the core issue as whether, where a duty of care is owed and breached, and the plaintiff thereby suffers only economic loss which is a direct and reasonably foreseeable consequence, such loss is recoverable.

He distinguished between the duty question and the damage question: here, duty and breach were admitted and the factual causation and foreseeability of both the £400 and £1,767 losses were not in dispute. He queried why one should be recoverable and the other not, describing the link to the spoiled melt as a “purely fortuitous fact” without principled significance.

He quoted Lord Denning’s own earlier statement in S.C.M. Ltd v Whittall:

“Damage was done to many factories by the cutting off of the electricity supply. Those who had a stand-by system would not suffer loss. But all others would suffer loss of production and loss of profit. This could be reasonably foreseen. Some of the factories may have suffered material damage as well. But that should not give them a special claim. Either all who suffered loss of profit should get damages for it, or none of them should. It should not depend on the chance whether material damage was done as well”.

He read cases such as Cattle v Stockton Waterworks as based on remoteness rather than a categorical exclusion of economic loss, and relied on Morrison Steamship Co Ltd v Greystoke Castle and Hedley Byrne v Heller to argue that there is no general rule that financial loss absent physical damage is irremediable.

He endorsed modern dicta suggesting that the existence of a duty does not depend on whether the foreseeable loss is physical or financial, citing, among others, Salmon LJ in Ministry of Housing v Sharp and Sachs LJ in Dutton v Bognor Regis UDC. In his view:

“my conclusion, as already indicated, is that an action lies in negligence for damages in respect of purely economic loss, provided that it was a reasonably foreseeable and direct consequence of failure in a duty of care.”

Applying this, he saw no principled basis for distinguishing between the first spoilt melt and the four further melts, and would have allowed recovery for the full £2,535.

Lawton LJ

Affirmation of Cattle v Stockton and limitation on economic loss

Lawton LJ agreed with Lord Denning and addressed directly whether a plaintiff can recover foreseeable financial damage not consequential upon physical injury or property damage. He stated:

“In my judgment the answer to this question is that such financial damage cannot be recovered save when it is the immediate consequence of a breach of duty to safeguard the plaintiff from that kind of loss.”

He revisited Cattle v Stockton Waterworks Co, quoted Blackburn J’s finding that the contractor had no right of action for loss of profit caused by damage to another’s property, and emphasised that the judgment had long been treated as correctly stating the law:

“For nearly a hundred years now contractors and insurers have negotiated policies and premiums have been calculated on the assumption that Mr. Justice Blackburn’s judgment is a correct statement of the law; and those affected financially by the acts of negligent contractors have been advised time and time again that mere financial loss is irrecoverable.”

He rejected the contention that subsequent developments, including the Greystoke Castle case, had undermined this principle, noting that the House of Lords there had not expressly overruled Cattle v Stockton and that the case was argued as one of maritime law. He agreed with Lord Denning that differing results across cases reflect policy choices rather than rigid logic.

Rejection of “parasitic damages” by Lawton LJ

Lawton LJ also considered and rejected the “parasitic damages” concept, reviewing authorities cited in support and concluding that broad statements suggesting all consequential financial loss is recoverable oversimplify the law. He adopted the editor’s comment in Mayne and McGregor on Damages that:

“Each tort is different and, since the matter is one of policy, each can be decided in a different way from the next one”.

He held that the rule stated by Blackburn J in 1875 remained the correct principle to apply in negligence cases, leading to the same outcome as Lord Denning: recovery only for physical damage and directly consequential profit.

Implications

The Court of Appeal, by majority (Lord Denning MR and Lawton LJ; Edmund Davies LJ dissenting), allowed the appeal and limited Spartan Steel’s recovery to £768 (physical damage plus profit on the spoilt melt), disallowing the additional £1,767 for profits on four unrealised melts.

The decision reinforces a key distinction in negligence between:

• Economic loss consequential on physical damage to the claimant’s person or property, which is recoverable; and
• Pure economic loss (loss of profit or production independent of any physical damage), which is generally irrecoverable in this context as a matter of policy.

Spartan Steel thus becomes a leading authority on the non‑recoverability of pure economic loss in negligence, particularly in cases involving negligent interference with public utility supplies. It clarifies that contractors who negligently cause short‑term interruptions to services like electricity are liable for direct physical damage and consequent loss, but not for broader loss of profits unconnected with such damage.

The case also explicitly rejects the notion of “parasitic damages” as a free‑standing doctrine in negligence, and frames the limits on economic loss recovery as grounded in policy considerations concerning multiplicity of claims, evidential difficulties, allocation of risk, and consistency with statutory undertaker liability. Edmund Davies LJ’s dissent signals an alternative approach, favouring a unified foreseeability-and-directness test for both physical and economic losses, but the majority rule remains the controlling authority.

Verdict: Appeal allowed. The defendants’ liability was limited to £368 for physical damage to the melt and £400 consequential loss of profit on that melt. The claim for £1,767 profit on four further melts was disallowed. Damages were reduced to £768 with interest at 6% to the date of judgment.

Source: Spartan Steel and Alloys Ltd v Martin & Co (Contractors) Ltd [1972] EWCA Civ 3