Planning fallacy
The Sydney Opera House was expected to be completed in 1963. A scaled-down version opened in 1973, a decade later. The original cost was estimated at $7 million, but its delayed completion led to a cost of $102 million.
Sydney Symphony Orchestra
The Sydney Opera House, while among the most famous buildings of the 20th century, is problematic for the orchestra. The SSO was instrumental in calling for a new Opera House to be built and it was always intended to be their home venue. However, control of the Opera House has always rested with a separate body, the Sydney Opera House Trust, and the two institutions have had conflicts.