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The octagonal church was entirely excavated.
A natural rock protruded above floor level In the center of the church. The rock was surrounded by an inner octagon, forming the central space of the church.
The inner octagon was surrounded, in turn, by an octagonal ambulatory, being separated from the inner octagon by eight free standing corner pillasters and columns in between. The ambulatory was surrounded by an external octagonal unit, divided into rooms and chapels.
In the northern, southern and western sides of the external octagon were located rectangular entrance rooms. In the diagonal sides of this unit four chapels were located. Each chapel comprised of a rectangular room and an apse, generally oriented to the east. Each chapel had two doorways: one leading from the ambulatory and the other - in the wall against the apse, to an irregular shaped room. These rooms were located in the corners of the outer octagon, connecting between the side chapels and the rectangular entrance-rooms of the church.
In the eastern part of the external octagon were located the bema and the external apse. In Phase II the bema was extended to the west, into the ambulatorium. The extension was made by adding of two parallel walls with two staircases between them that led to the bema.
According to Cyril of Scythopolis, the church was built in 456 CE, by a widow named Ikelia. Three phases have been identified in the church. In each phase a new mosaic floor was laid above the previous one. No major architectonic changes occurred to the general octagonal plan of the church. The phases were dated mainly by coins. Phase I is dated to mid 5th century CE.
Phase II is dated to the first half of the 6th century by the coins and mosaics.
Phase III is dated by coins and mosaics to the first half of the 8th century.