The Church of Agia Ekateriny is of the single-aisle type with a dome. Its external measurements are 18,70 X 8,05 metres without the apse. Today's church is the result of an expansion and a retrofit of an older church that was arch-covered and had a lesser length, a part of which is embodied in the west arch of the church. To make the retrofit of the initial church, the apse and a part of the north and south walls were demolished and the single aisle with the dome was added.

A segment of the original church measuring 8,05 X 8,70 is extant. In the centre of the west wall stands the original gate, while the south gate of the initial church was walled up and two new ones were opened in the south wall, one in the west and the other in the east of the initial entrance. The church has a small, rectangular window in the north wall and a narrow gap for illumination in the semicircular apse. There also are four small windows in the dome. The dome is relatively large, while the south and north arcs -that along with the arches support the dome internally -do not appear externally either as semi-circles or pediments as usual. Instead they end in a straight segment that rises as the Greek capital letter Π (P) in the south and north wall.



The original church seems to have been decorated with frescos. Out of these frescos one can distinguish, under the whitewash of the western wall, pieces of a large representation of the Second Coming.

The original church was built in the 15th century and took its present form in the middle of the 16th century.