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 Gardens
The Sydney Hotel was built within the gardens. It later became the Holburne Museum. The original design for the hotel, prepared by Thomas Baldwin in 1794, was a two-storey building which would serve the pleasure gardens. After Baldwin was bankrupted his design for the hotel was not implemented. Instead a three-storey building was designed by Charles Harcourt Masters. The foundation stone was laid in 1796 and the building was ready by 1799. Visitors entered the gardens through the Hotel. Projecting from the rear of the building at first floor level was a conservatory and a semi-circular orchestra with a wide covered loggia below. Two semi-circular rows of supper boxes projected from the sides of the building.