Decumano

At the southwestern corner of the forum, the paved portion of the Via Sacra picks back up. Running west from the forum is the similarly paved decumanus maximus (via di Porta Marina). The southwestern quadrant of this intersection for the remainder of the archaeological park, is taken up mostly by Hellenistic and Roman residential buildings. 

These are certainly worth exploring, as there are more interesting examples of domestic structures. The so-called Hellenistic Swimming Pool and a house with a large peristyle (which is right next to the Via Sacra) are also among these structures. The farthest western housing block had been closed off on my most recent visit, so it may not be possible to see some of these.