how much did it cost to build the sydney opera house
Answered by The Community. Making the world better, one answer at a time. The original estimate of the construction cost of Sydney Opera House was $7 million, while the final cost came to $102 million. ^ ^ =-) =-D XD :-) :-D X-) $ $ ___.e designed the Sydney Opera House and won a award of money 5000 pounds. It took 7 years to build the mode â¦ l of the Opera House and 17 years to comp;ete the actual building.