The original hall built during the time of King Rama II was in the late Ayutthaya style. Later the structure became elongated, similar to the style of King Rama I, with redented pillars. They bear elongated lotus capitals lacquered and gilt. The bases of the pillar are raised on platforms. The ordinationhall was built of brick and mortar with roof of wooden beams and ceramic tiles. The gable board is gilded and decorated with glass mosaic.The walls between the windows bear murals of the ten previous lives of the Buddha. Above the windows on the northern side, the mural paintings are from the life of the Buddha. In the south is Vessantara Jataka. The originals were destroyed by fire in the reign of Rama V. He had them redone in relatively modern style. The face of the presiding Buddha image,cast in the reign of Rama II. The ashes of King RamaII are buried in the base of the image.
In front of the hall is a throne between the twodoors. The throne is of very decoratively carved wood-work, gilded and decorated with glass mosaic.