The archaeological excavations at the roman villa of Ossaia – La Tufa was held from May 24 to June 18, 2010. The investigations were concentrated in two sectors of area 3: the porch – sector 25 and sector 27, both partially investigated during previous excavations.

In the porch, it was uncovered a part of pavement consisting of roughly hewn stone blocks enticed with gray mortar. This layer, which is cut on the west side, continues to the east and rests on a level of collapse (obviously altered) of the southern structures of sector 25 (F 508). This layer has returned, among other building materials, numerous fragments of painted plaster (red and white decorated with phytomorphic motifs), which decorated the wall of the structure F 508 (part of the plaster is still attached on the wall). This pavement could be dated between the late 1st and 2nd century AD, when the villa underwent a radical change in the functional and architectural arrangement. The layer of collapse covers directly crepidine of the peristyle. It was found another stone blocks of the crepidine and the trace of another column which was supporting the roof of the peristyle. The crepidine continues to the east.

In the northen part of the sector 27 it was not possible to locate the perimeter of the wall. This sector is a rectangular room open on the east side and oriented north / south, which measures approx. 8×5 m,. After the removal of the topsoil by mechanical means, it was uncovered a layer with brick fragments, interpreted as a level of obliteration of a previous structure (which were already being scraped in the past, since no trace of collapse was found) and elevation of the plans after.
This layer covers the floor plan of an environment consisting of a mosaic of black and white dating to the Augustan age (and therefore contemporary with the construction phase of this sector of the villa).The mosaic has two motifs. The first, on the southern part, it’s a black geometric lozenge surrounded by a frame with three black stripes and a concentric inner band decorated with a row of black triangles.The second motif has the same decoration with lozenge but in white color. On the basis of archaeological documentation from other rooms of the villa, the change of the mosaic motifs indicates a spatial and funztional transition between rooms. The tessellated is laid on a layer of cocciopesto, which in set up on a layer of clay soil and rocks.