Trogir is a remarkable example of urban continuity. The orthogonal street plan of this island settlement dates back to the Hellenistic period and it was embellished by successive rulers with many fine public and domestic buildings and fortifications. Its beautiful Romanesque churches are complemented by the outstanding Renaissance and Baroque buildings from the Venetian period.

The Committee decided to inscribe this property on the basis of criteria (ii) and (iv), considering that Trogir is an excellent example of a medieval town built on and conforming with the layout of a Hellenistic and Roman city that has conserved its urban fabric to an exceptional degree and with the minimum of modern interventions, in which the trajectory of social and cultural development is clearly visible in every aspect of the townscape.