This is a large building measuring approximately 15 x 7 m., the southwest corner of which had been excavated in 2010. This is a rectangular building 14.60 m. long and 7 m. wide. It consists of four compartments. This building was either never finished or has been destroyed, as its interior was devoid of finds. Its most striking aspect is that its south side was lined up with ashlar stones and orthostates, giving it a formal facade. A vertical slab at a distance of 0.50 m. from the southeast corner of Building X seems to have served as a sort of marker, perhaps used by the builders as a point of reference for the construction of the east side of the building. Both this slab and the south side of Building X were covered by a thick destruction containing a large number of pieces of disintegrated mudbricks and pottery which, on preliminary analysis, appears to be LH IIIB.
Paved courtyard and drains
To the south of Building X we uncovered parts of an extensive paved piazza or courtyard. Unfortunately, this paved area has been severely damaged and is only preserved in two parts. The first runs in an east-west direction parallelly to the south side of Building X for a length of 16 m. The second had been excavated in 2010 and had then been considered part of a road, but the discovery of more parts of the same paved area has shown that it belongs to the same paved floor. The pavement is made of large worked limestone blocks with square or rectangular section, carefully placed on the ground so that their top surfaces form a uniform flat level.
The original total surface cannot be determined at the moment, because parts of it continue in the unexcavated squares; in the excavated area, however, it seems to extend from the south side of Building X to the east side of rooms Z1 and Z2, a total area of about 250 sq. m. Because the floor of this piazza or courtyard is at the same level as the lower line of the ashlar blocks of Building X, it would appear that the intention of the Mycenaean builders was for the carefully made formal south facade of Building X to be visible by those who stood on the paved area. On the basis of this architectural connection of the paved area with Building X, it seems that the two structures were connected and form part of the same building project.
To the same building project also belong the two drains (ζ and θ). The slabs covering the entrance of the drains are a continuation of the slabs of the pavement and in fact the floor of the pavement slopes gently from east to west, so that rain water could flow in the drain. Drain ζ is the larger of the two: its construction is massive, reaching an external width of 1.60 m. Its external walls are constructed of seven courses of medium-sized flat stones, reaching a total height of 0.70-0.80 m. Drain θ is partially covered by the slabs of the pavement and partially uncovered. The exits of the drains have not been located.