After the first season of investigation of this part of the piazza, this ashlar wall (aligned north-south) appears to be in phase with the other ashlar walls (aligned east-west) in the immediate vicinity (7405/7413, 7362, 7330, 7332). These walls, in turn, appear to be in phase with the basalt pavement of the piazza (which can be seen to abut at least this wall and wall 7405). At present, the precise layout of the room(s) or structure(s) to which these walls belonged is unclear. But the parallel walls running east-west (7332/7330 to the north, 7362/7405/7413 to the south) may have delimited in some way the south side of an elongated rectangular space oriented on an east-west axis. Important questions remain: How far to the west did these rooms extend? What is their relationship to the Via Praenestina? What was the nature of the space north of wall 7332/7330? Did the basalt pavement originally continue west of the line of this wall? See also the interpretation of SU 7405.

Ashlar wall serving as the eastern limit of Room H-10. This wall is covered by the concrete wall 7335. The similar construction of this wall and wall 7330, both are ashlar walls in Room H-10 covered in a concrete wall, suggest that they are built in the same phase. The position of mosaic 7349 abutting the wall suggests that the mosaic was built after the wall had already been constructed. There is an uncertain relationship between the wall and the basalt pavers 7044 of the piazza. The southern limit of the wall is damaged by the cut 7266 but possibly would have extended to meet the southern limit of Room H-10.