Restoration after the earthquake created a stronger foundation for the church.[5] Before being rebuilt, the foundation had significant structural problems.[5] This restoration established a cross-domed plan on the gallery level while still being able to keep the original basilica plan at the ground level.[5] The narthex can be found to the west, preceded by the atrium, and then the apse on the east side.[5] Hagia Irene still holds its dome and has peaked roofs on the north, west, and south sides of the church.[5] The dome itself is 15m wide and 35m high and has twenty windows.