Stratum 15 at Tell Hesban appears to mark a modest destruction or abandonment phase within the Late Hellenistic occupation (ca. 198–63 B.C.). Mitchel (1980: 21, 47) observed that its chronological interpretation is constrained by “slim evidence,” since most stratigraphic remains were cut away by later building activities of Stratum 13. Although the ceramic assemblage indicates widespread occupation across the site, contexts of clear stratigraphic value are scarce and discontinuous.

The clearest evidence survives in Areas B and D, where several subsurface installations (silos) were closed by capstones at the end of occupation. Their fill consisted of rubble and debris from Stratum 15. Comparable debris deposits also filled a cistern-like pit in G.1.

Mitchel (1992: 38–39) described the transition to Stratum 14 as “smooth,” noting the absence of a burn layer or other signs of catastrophic destruction. However, he also concluded that it is unlikely it will ever be known if Stratum 15 Heshbon was "simply abandoned, or destroyed by natural or human events."