Hadley & Anor v Baxendale & Ors [1854] EWHC J70 is a leading English contract law case. It sets the leading rule to determine consequential damages from a breach of contract: a breaching party is liable for all losses that the contracting parties should have foreseen. However, if the other party has special knowledge that the party-in-breach does not, the breaching party is only liable for the losses that he could have foreseen on the information available to them.
Baron Alderson
English contract law is the body of law that regulates legally binding agreements in England and Wales. With its roots in the lex mercatoria and the activism of the judiciary during the Industrial Revolution, it shares a heritage with countries across the Commonwealth, from membership in the European Union, continuing membership in Unidroit, and to a lesser extent the United States. Any agreement that is enforceable in court is a contract. A contract is a voluntary obligation, contrasting to the duty to not violate others rights in tort or unjust enrichment. English law places a high value on ensuring people have truly consented to the deals that bind them in court, so long as they comply with statutory and human rights.
A contract is an agreement enforceable in court. Contract law regulates all sorts of transactions, from buying a tube ticket to computerized derivatives trading.
The Court of Common Pleas (here in 1480) was, with the Court of King's Bench, the common law court that heard early cases about broken agreements in debt. Until 1602 it resisted hearing cases without claimants risking perjury.
Merchants trading within the North European Hanseatic League followed a law of the merchant, or lex mercatoria, whose principles were received into the English law of contract.
Unidroit, based in Rome and established in 1926 under the League of Nations to unify private law, maintains the influential Principles of International Commercial Contracts of 2004. A similar effort is the Principles of European Contract Law of 2002.