Opera Italiana pro Oriente
During its operation as the renown Sofia Music College, the facility experienced various fittings and reconstructions. The concert hall of the building became independently accessible, while the central entrance to the street was removed in favour to an access from the backyard. The east wing was extended too, and the original rooftop was removed and rebuilt in higher area utilization. The initial neo-renaissance appearance was successively replaced with a slicker façade, as it was popular in the early socialist era.