In 2007 the excavation of Area I was completed, in 2013/14 that of Area IV, and in 2015 that of Area III. The 2016 campaign investigated Area II, where the Curiae veteres of the “Romulean” period was situated. The excavations uncovered evidence relating to situations and activities of different date (from the archaic to Augustan period), within which the late archaic and proto-Republican stratigraphies were the richest in materials, documents and information. The pre-anthropological horizon was reached in all three excavation areas (formation of the Fosso del Torrino, 430,000-400,000 B.C.), cut by interventions dating to the full historical period and/or thrown into the great dumps of soil used to periodically reconfigure the sanctuary’s spaces. The 4th and 5th century B.C. levels confirmed the logic that governed the development of settlement on the site, which consisted in creating plateae supported by buttresses, abutted by great masses of soil and stones. As in 2014 and 2015, hearths and pits bordered and covered by stones, and sacrificial remains (predominantly bovine) were found on the surface of these dumps, which artificially raised the occupation surfaces. However, the most important discoveries uncovered this season were the elements relating to the roofs and architectural decoration of one or more buildings, which between the late 6th and during the 5th century B.C. were being rebuilt or restored (slabs of the Veii-Rome-Velletri system and the Caprifico di Torrecchia system, painted tiles and imbrices).

The discovery of the west enclosure wall, probably datable to the mid 6th century B.C. is of fundamental importance for the reconstruction of the sanctuary’s boundaries in the Regia period. The structure of cappellaccio blocks, similar in construction technique to the northern temenos found in the excavation area of the Meta Sudans in the 1990s, formed the western part of the wall surrounding the Curiae veteres. It remained in use until the mid/second half of the 5th century , when an intervention to raise the ground level in the area led to its demolition, and the rear wall of the complex was moved back towards the west.
The fact that only a few traces of “constructions” were uncovered by the excavations suggests that the Curiae veteres was a large open space until the age of Caesar. It may have been fronted by a naos (to which the architectural decoration found in secondary deposition in the 5th and 6th century B.C. dumps may belong), to be positioned – by analogy with what occurred in the subsequent period – on the eastern part of the hill (between Area III and the present Piazza del Colosseo). The sanctuary was only fully occupied by rooms and corridors in about the mid 1st century B.C., remaining largely unchanged, with the exception of the continuous rebuilding of the sewer system, until the fire of 64 A.D. These are proposals made in absentia, which must take into account the destructive impact of the constructions of the imperial period, in particular those of the Neronian-Flavian era, which left deep and extensive marks on the site.