Between 1982 and 1989 parts of the building have been restored to their original state, technically upgraded and expanded to allow additional uses. The new work did not compromise the decorative or structural integrity of the original building. Stone, brick, iron, glass, and ceramics were used in the same way that Domènech i Montaner used them. One of the most important expansions is the adjoining building of six stories that houses dressing rooms, a library, and an archive.
The architectural decoration in the concert hall is a masterpiece of creativity and imagination, yet everything has been carefully considered for its utility in the presentation of music. The hall is not a theater, because the massive sculptures flanking the stage make the use of scenery nearly impossible. Likewise, even though a noble pipe organ graces the apse-like area above and behind the stage, the hall is not a church. If it is religious at all, it can only be described as pagan.