Historians believe that Buduruwagala was an active Buddhist monastery between the 9th and 10th centuries A.D., during the late Anuradhapura period. The monastery served as a centre for Buddhist worship, meditation, and education. The stupa was built to enshrine sacred relics of the Buddha or other revered monks and became the spiritual heart of the monastery.
The Buduruwagala Stupa stands on an elevated area near the famous rock sculptures. Although much of the original structure has been damaged by time and natural weathering, its circular foundation and brick remains can still be seen today. Archaeological excavations have revealed that the stupa was constructed using finely baked bricks and traditional engineering techniques, demonstrating the advanced architectural knowledge of ancient Sri Lankan builders.