Sydney Opera House

The Opera House went over budget because the design was genuinely unprecedented. The iconic shell structures required solving engineering problems that had never been addressed before. The original budget of A$7 million was based on conventional construction estimates that did not account for the innovation required.

The Opera House was originally scheduled to open in 1963 but was completed in 1973 — approximately 10 years late.

Utzon resigned in February 1966 after the new NSW government withheld progress payments and demanded documented cost justification — a dispute critics described as political pressure. Utzon believed the government's terms were incompatible with the innovative nature of the design.

By conventional project management metrics (time, cost), it was a massive failure. However, it has become one of the world's most recognised works of modern architecture and generates an estimated A$1.2 billion annually for the NSW economy (Deloitte, 2023). It demonstrates that not all overruns are failures.

Key lessons: (1) Visionary projects need different governance models, (2) Creative vision must be protected from political pressure, (3) Standard project controls may not apply to unprecedented endeavours, and (4) Success metrics should be adapted for transformative projects.

The original budget was A$7 million. The final cost was approximately A$102 million — roughly 14 times the original budget (roughly 1,450% over).