The chapel has undergone two major restorations. During the reign of King Prasat Thong
(r. 1629-1656) the building was extended at the back, in a way that the 1.6 m wide stairs
of the back porch penetrated and entered the newly built gallery. The second renovation
took place during the reign of King Borommakot (r. 1733-1758). The walls of the front
porch were dismantled and six more pillars were erected to support an additional roof
section.