Architectural remains belonging to luxurious residences from the Roman period (3rd–4th centuries CE), which replaced earlier houses from the Hellenistic and early Roman periods, are located immediately to the west, separated from the Theater by an ancient road

2 m wide, from the Theater. Some rooms from the final phase of the 4th century AD, mainly the men’s quarters, have floors paved with multicolored mosaics and bear inscriptions such as “PARAMONOS ANAGNOSTIS EPOIEI” and “THEODULOS EPISKOPOS (E)POIEI, which relate to their use as a “house of prayer,” or “house church,” for the gatherings of the community’s early Christians. The 3rd-century AD house of prayer was renovated and expanded in the early decades of the 4th century, and the local bishop, Theodoulos, was responsible for this project. The mosaic floor of the men’s chamber in the southernmost house features a dominant motif of cubes, scrollwork, and daisies in various combinations. In the mosaic of the second, northernmost house, the dominant motif is the meander pattern.

The Eukterios House in Ancient Messene is the oldest Christian assembly hall in Greece and one of the oldest in the entire Mediterranean region, making it a discovery of global significance that sheds unique light on both early Christianity and the city’s transition from Greco-Roman antiquity to the early Christian period.