This is a small building to the south-west of the Great Warehouse (II,IX,7), about which the present author has been not been able to find any literature. Apparently it consisted of two shops entered from Via dei Molini, behind a porticus, a staircase to the north, and a corridor with a basin to the east. At the north end is an interesting little room, according to the plan in Scavi di Ostia raised, entered from the east via a few steps and with columns at the east end.