During the early 1960s, original plans of Rastrelli's baroque cupolas were uncovered in Vienna, Austria. In 1970, the St. Sophia Museum requested photocopies of the originals from the Albertina Museum located in Vienna. In 1978, restorers headed by architect V. Korneyeva restored the church's domes based on drawings by Bartolomeo Rastrelli. Since 1987, the church is included into the National Conservation area "Saint Sophia of Kyiv." Nowadays it is Cathedral of the Ukrainian Autocephalous Orthodox Church. On the 255th anniversary of the construction, the Ukrainian Presidential Administration transferred the ownership of the building from the government to the Ukrainian Autocephalous Orthodox Church. In October 2018, the church was transferred to the Ecumenical Patriarchate of Constantinople as a stauropegion.