During the following reconstruction was built the bulbous roof (also called onion roof) instead of the old saddle roof. At the top is a observation deck with a tracery railing. Behind the observation deck is a room for watchman, because in the past was the tower a part of the town defense system. At each side of the observation deck are clocks, which were moved from the city castle in 1860. There are some pointed windows at each side of the tower. During the reconstruction of the monumental tower in the 16th-century were made changes also in the northern part of the church. Above the north portal were built Renaissance shield arches with a new roof construction of the northern aisle. In 1726 was built an entrance hall in front of the entrance portal. It was removed in the middle of the 19th century while the church was in another reconstruction. In the same years an old sacristy next to the presbytery was demolished. The window above the old sacristy was enlarged to the same height as other windows in the presbytery. It has become the biggest window in the presbytery because of the original window. Windows in the nave above aisles or in the sacristy are usually wider than in the presbytery. In the church was used a so-called „bonded construction system“ in which the length of one field of the nave correspond to the two fields of the aisle and to two arcades. The system was interrupted by the tower which was built on the two western fields of the southern aisle. The presbytery contains one cross-rib vaulted bay and polygonal ending, which is radially vaulted and in its center is a simple keystone without any decoration. The second keystone in the western part has been decorated with a radially lined up overlapping leaves. The axial pointed window is noticeably larger than other pointed windows, except the widened window in the northern facade. The adjoining bay of the presbytery has a ribbed vault connected to the reduced supports of the vault ended by a console. The consoles have simple floral and geometric motifs. Also, the nave has the cross-ribbed vault with reduced supports. Massive columns and the simple shaped arcade look heavy-footed. The supports of the vault ended on a cornice of columns. From the cornice come out a cuboidal slab to the pointed arch. In every bay of the nave is a window above the arcade which is a typical feature of the basilica.