In 2013 the American Institute for Roman Culture, in collaboration with the Soprintendenza Speciale per i Beni Archeologici di Roma (Scavi di Ostia Antica) and with a permit from the Ministero dei Beni e delle Attività Culturali e del Turismo, began a three-year archaeological investigation of the Parco dei Ravennati, a public green space located between the ruins of ancient Ostia and the Medieval borgo that replaced it. This area, part of the suburbium of Roman Ostia, is crossed by a 60-m long stretch of basalt-paved road leading from ancient Ostia towards the borgo, presumably part of the Via Ostiensis.

Activity was concentrated in two areas, named A and B.

Area A, located along the Via della Stazione, consists of two Renaissance cisterns built against an Imperial structure of undetermined function uncovered in 2012. In Late Antiquity the floor of one room of the structure was replaced with an elaborate geometric design in opus sectile, of which only a small portion has been revealed, and the walls were decorated with colored fresco, poorly preserved. The opus sectile and fresco decoration indicate a prestigious space, probably part of a domus, guild headquarters, or ecclesiastical structure. In the Medieval period the opus sectile pavement was buried, the floor level was raised, and the space was sub-divided into a series of workshops containing traces of worked bone.

Activity in Area A was restricted to documentation of the opus sectile pavement and exposed baulks, conservation of the frescoes, and removal of the thick modern fill above one of the Medieval spaces.

Area B, located along the Roman road in close proximity to the castle of Julius II, is centered on the remains of a small circular Late Republican mausoleum built of concrete faced with large travertine blocks. At an undetermined moment between Late Antiquity and the Renaissance the upper core of the mausoleum was demolished and replaced with a square brick-faced concrete block, around which in turn was constructed a narrow brick-faced concrete wall in the form of an octagon; the spaces between the outer wall and central block defined four tombs, measuring approximately 2 × 0.5 m, and two additional tombs were created between the two tombs on the N-S axis. One of the tombs was partially excavated in 2012, yielding two burials (adult and child) near the surface.
Activity in Area B consisted of cleaning, documentation, and analysis of the mausoleum; clearance and documentation of five of the six tombs to an average depth of 0.5 m (no burials were encountered); and removal of the topsoil on the southern and eastern sides of the mausoleum, where a series of small walls and a cemetery containing at least three burials were uncovered. These features are likely associated with the castle of Julius II and therefore date to the 15th-16th century.