Photo: Daniel Boud

Sydney Opera House, the Danish architect Jørn Utzon’s “opus magnum”, has reopened the doors of its historic concert hall after more than two years of silence. The extensive renovation, initiated in early 2020, aims to restore the functionality of the hall, which has faced technical inadequacies and access problems in recent years. This project represents the largest and final phase of a $300 million renovation program executed over the past decade, gearing up the iconic Australian landmark for its 50th anniversary in 2023.


Photo: Bernard Spragg

Sydney Opera House stands not only as one of the most significant architectural monuments of the 20th century but also as the structure that transformed the destiny of its architect, Utzon, bringing him global recognition. Selected in 1956 through an international competition, the project owes its realization to the belated intervention of a jury member, the Finnish-born US architect and industrial designer Eero Saarinen. Unable to participate in the initial round of the competition, Saarinen later joined the jury, discovering that Utzon’s proposal had been rejected. After reassessing the project, Saarinen ensured its victory. The construction process proved to be challenging. Utzon’s sail-like concrete shells posed difficulties in materializing. The inadequacy of construction techniques at the time resulted in numerous practical issues, exceeding the projected construction costs, and leading to bureaucratic crises. Eventually, Utzon withdrew from the project, and the construction process from the 1950s to the 1970s remained a constant source of sensation. Completed in 1973 by the Australian architect Peter Hall, the building emerged as a significant symbol of the country globally and secured a place on the World Heritage List in 2007.


Photo: Daniel Boud

While the Opera House has retained its symbolic significance to this day, as it nears its 50th anniversary, it has inevitably shown signs of aging in functional aspects. In particular, the concert hall, serving as the heart of the building and its largest performance space, has faced functional challenges due to inadequate circulation areas, aging technical equipment, and acoustic infrastructure that has exceeded its life expectancy. These factors have prompted a comprehensive renovation program.


Photo: Lisa Maree Williams

The Australian architecture firm ARM Architecture was selected as the architect and lead consultant for the concert hall renovation in 2015. The studio, emphasizing that the design was shaped through an extensive research process to ensure alignment with the original interiors, collaborated on the project with various experts, including the civil engineers Arup, the heritage consultants Design 5, the concert hall consultants Theatreplan, the construction firm Taylor, as well as the hall equipment contractor Waagner Biro, the mechanical engineers Steensen Varming, the acoustic engineers Müller-BBM, and the opera house’s in-house project team.

You can find more details about the project in the gallery.


The project was initiated in February 2020, and after more than two years of implementation, the building’s “heart” is beating again as it prepares to mark another half-century following the 50th-anniversary celebrations in 2023.

Source: Sydney Opera House