The Basilical Planned Church, located just above the Kibyra Stadion, is the largest religious building of the Eastern Roman period city, measuring 20.00 x 48.00 m from exterior to exterior. This church has a basilica plan with three naves and a triconchos (clover-shaped) apse. The central apse has an altar and synthronon, while the pastophorion rooms are located behind the side apses. The three rooms to the south of the basilica and the rooms next to it are burial chambers. In the first room in the east, an altar and a relicer were found inside the altar. In the other rooms, burials were made in terracotta sarcophagi under the floor.
In front of the basilica is a landing added later. From here, the narthex (the covered front space at the entrance of the church) is entered through four doors, two at the front and one on each side. The floor is paved with opus sipicatum (rectangular pieces of terracotta/tile arranged side by side to form the spica (spike) motif that gives the floor its name) decorated with different geometric ornaments.
Entered through three doors from the narthex is the naos section (the place where the congregation gathers in basilicas consisting of the central and side naves). The naos is divided into three naves by colonnades (spaces within the naos, placed perpendicular to the apse, separated from each other by columns or pillars). During the excavations, it was observed that the floor of the central nave was paved with marble slabs reclaimed from Roman Imperial Period buildings. The floor of the side naves, which are separated by colonnades from Roman Imperial buildings, is paved with opus spicatum. At the eastern end of the naos is the bema (a raised space with an altar separated from the naos by parapets and accessible only to priests). The bema is surrounded by a buttressed tempo (a parapeted section separating the naos from the altar room). In the center of this area, traces of the etching of the metal doors on the stone are still visible. A four-legged altar table was excavated in the center of the area. In the central apse, there is a stepped Synthronon (stone or wooden seating benches placed inside the apse).
To the north and south of the main apse, two rooms were exposed. These rooms are called "pastophorion". The room to the north, where bread and wine were prepared, is the "prothesis" room. The room to the south, where liturgical objects or vestments were kept, is called "diakonikon".
To the south of the basilica are the burial chambers, which seem to have been planned together with the building. In the first room, which is accessed through the diaconicon room and paved with marble, an altar is observed to the east of the row of three opposite columns. During the excavations, a silver relicer (objects in different forms made for placing relics belonging to holy people) was found inside this altar. This room and the rooms to its west were used as burial areas. Fifty-five terracotta sarcophagi placed under the floors of the rooms were found during the excavations.
Architectural fragments, ceramic vessels, lamps, coins and medallions were found inside the basilical planned church with triconchos apse. The dating of the building is based on its plan with triconchos apse, which is not very common in Anatolia, and it is thought that it was built in the 5th-6th century AD after the 417 AD earthquake, which was the second largest earthquake that the city suffered according to ancient sources.
