the building has a cylindrical dome supported by four round pillars and has a chapel in the north and south. the apse, delimited by a carved wooden iconostasis, in the eastern part of the church, is bounded by a three-part window. apse, dome and parts of the walls are decorated with murals. nothing is left of the original decor, the visible frescoes date back to the 15th century. some of the terracotta floor tiles are labeled "dion". the early parts of the structure are similar to the basilica of agia sophia in thessaloniki. similar features were found in other greek churches of the 8th and 9th centuries. possibly the church was used as a monastery church.