"The old opera was demolished in 1892 to give way to the construction of a new Opera drawn by Axel Johan Anderberg, which was finished seven years later and inaugurated by King Oscar II with a production of a Swedish opera (that tradition having been quite firmly established during the 19th century), Franz Berwald's Estrella de Soria....The new house had the letters Kungl. Teatern, literally "Royal Theatre" (which caused the later-founded Royal Dramatic Theatre to add the distinction "dramatic" to its name). The building is now simply called Operan ("The Opera"), written in golden letters above the middle arch on the front facade. It is a majestic neo-classical building with a magnificent gold foyer (Guldfoajén) and elegant marble grand staircase leading to a three-tiered auditorium somewhat smaller than the old theatre. It presently seats 1,200. Most productions are now sung in the original language (with Swedish subtitles), with only a few in Swedish." - Wikipediathe 1960s.
Anderberg's building features classical figures from the Renaissance, Baroque and Gustavian Periods. It also combines various architectural elements from the exterior of the Royal Palace, as well as from Arvfursten's Palace (opposite), to create a cohesive urban space in accordance with the architect Nicodemus Tessin the Younger's intentions. This is enhanced by the unified color scheme of the Opera, Royal Palace and the Parliament House. The Opera's public space preserves a lavish and representative environment from the late 19th century.
The Opera has been a state monument since 1935.