Sathmahal Prasadaya is a unique type of 7 storied ancient building in Dalada Maluwa premises in Polonnaruwa District of North Central Province, Sri Lanka. The Sinhala name “Sathmahal” has the meaning of 7 storied. The building is completely built with bricks and it takes the shape of a pyramid. The base of the building is the shape of a square with side length of 35 ft. There are four doors with arches on each side. Since these type of buildings have been found in Northern Thailand, this is also considered as a monument which confirms the foreign affairs in ancient Sri Lanka.