In Jainism, Shatrunjaya (also known as Palitana) is one of the most important pilgrimage sites, featuring hundreds of temples built over many centuries. The construction of temples on Shatrunjaya Hill began as early as the 11th century and has continued in phases. There is no single "last construction" date because renovations, restorations, and new shrines are periodically added, as per Jain tradition.

However, significant restoration and new temple constructions have occurred as recently as the late 20th and early 21st centuries. Major reconstruction after destruction by invaders took place in the 16th and 17th centuries, especially under the patronage of wealthy Jain merchants.

If you are referring to a specific temple or major construction event, please provide more details. In general, the process of building, renovating, and maintaining temples at Palitana is ongoing, reflecting the living tradition of Jain devotion.