In the original variant (the end of the thirteenth century) the church combined the Byzantine-Ruthenian planning structure with western (Roman) construction techniques and was an example of the old Galician architectural school. Later rebuilding occurred in the seventeenth century (the emergence of Baroque elements is connected with the reconstruction of that time), the nineteenth century and in the period of 1924-1925 (restoration).

The St. Onuphrius monastery in Lviv consists of a complex of buildings including a church, a belfry gate and monks’ cells which are owned by the Most Holy Saviour Province of the Basilian Order in Ukraine. It is located in the oldest part of the city existing since the times of the Principality of Galicia-Volhynia. The church is one of the oldest monastery churches; it is associated with well-known historical persons (a prince of Moldavia), clerics, members of the Lviv Stauropegion brotherhood, noted architects (Franz Trescher, Edgar Kováts), sculptors, carvers (Andriy Koverko), painters (Luka Dolynsky, Marcin Jabłonski, Modest Sosenko), printing pioneer Ivan Fedorovych (Fedorov). Some prominent figures of the sixteenth-eighteenth centuries from Lviv and Ukraine are buried in the church and near it.

According to the resolution of the Council of Ministers of the Ukrainian SSR number 970 dated 24 August 1963, the St. Onuphrius church was entered in the National list of monuments under protection number 364/1.

The bell tower of the former Church of the Holy Spirit (presently the Museum of "Rusalka Dnistrova," a branch of the Lviv Art Gallery). The tower served as a bell tower of a former seminary’s Greek Catholic Church of the Holy Spirit, which was rebuilt in the nineteenth century from the Baroque Roman Catholic Church of the Barefoot Carmelites; the latter was erected in 1729. The church was destroyed during the Second World War and only its bell tower has been preserved. In 1987, museum premises were added on the west.

The Church of the Assumption of the Mother of God – formerly known as Voloska church is the key element of a wonderful architectural ensemble that includes the church, bell tower (it is built onto the church from the north) and the chapel building in the yard. This is the best Lviv Renaissance monument; its architecture unites the West European Renaissance forms with the tradition of the Eastern Christianity sacral construction.  The church stands at the intersection of Pidvalna and Ruska Streets, on the site of an old church of the fifteenth century. In was constructed from 1591 to 1629 (by the architects P. Rymlianyn, V. Kapinos, A. Prykhylnyi) and in 1796 (rebuilt after fire). In the middle of the nineteenth century the church was connected with the Three Prelates Chapel.  

The bell tower of Assumption Church – Korniakta Tower is an element of the Assumption Church ensemble; it is located at the intersection of Pidvalna and Ruska Streets. The tower is connected with the northern façade of the church. The historic name of the Korniakt tower is connected with the name of its founder. The main construction dates are 1572-1578 (by the architects P. Barbon and P. Rymlianyn), 1695 (adding the upper tier by the architect P. Beber), and the 1780’s (restoration after fire). The tower has clear style features of the Renaissance as well as Baroque period (top part of the tower).