The church underwent repairs after the major earthquake of June 1896.
Prominent Features:
The church belongs to the Greek Orthodox Patriarchate of Istanbul.
The building is also known as the Ayios Athanasios Church.
The building was constructed within the permission regime of the Tanzimat period.
The building is identified as one of the first Greek Orthodox churches in Istanbul to be built with a dome and a bell tower.
The building has a domed basilica plan.
The central space is covered by a low, zinc-covered dome with a circular drum.
The entrance terminates externally with a triangular pediment; on both sides stand high bell towers.
On the wooden iconostasis, the Virgin Mary and Child Jesus and depictions of saints are rendered as oil paintings.
The feast day of the church is May 2.
In the historical narratives of the neighborhood, it is stated that after the Ayios Dimitrios Church in Kasımpaşa was converted into a mosque, the icons were moved to Tatavla, and the Ayios Athanasios Church was for a period also known by the name Ayios Dimitrios.