Prang Si Thep is a temple architecture influenced by ancient Khmer art with square layout, laterite platform, bricked relic housing and west direction frontage. At the front, there are twin buildings of Banalai currently with only the base platform, ancient pond, the cross passageway or Naga bridge connecting Kopura and laterite passageway and many other building platforms for rituals. The age can be detected by 16th – 17th Buddhist century and was pre-built for Hindu temple but turned out to be a construction for Buddhism in early 18th Buddhist temple with unfinished condition.