CODELFA CONSTRUCTION PROPRIETRY LTD V STATE RAIL AUTHORITY OF
NEW SOUTH WALES (1981-1982) 149 CLR 337
High Court of Australia – 11 May 1982
Codelfa was contracted to perform excavations for an underground railway within in a fixed period. The parties had contracted under the misapprehension that construction work could proceed on a three shifts per day basis. An injunction obtained by local residents made this impossible.
The Construction Company claimed from the SRA an amount in addition to the contract price in respect of the additional costs incurred and the profit it lost from the resulting from the change in working methods it had been forced to adopt.