Officially opened in 1911, this Italian renaissance revival-style building not only serves as the Council Chamber and city mayoral offices, it has two performance venues, the Great Hall and the Concert Chamber, as well as several function spaces. The wedge-shaped building underwent a NZD32.8 million restoration in 1997 to maintain its heritage features and Edwardian elegance. The Great Hall is regarded as one of the finest concert halls (acoustically) in the world, and has hosted circus acts, formal government dinners, weddings, music awards and rock concerts. It seats 1700 people, while the Concert Chamber caters for up to 400 people.