This was originally built by ruler U-Thong. During the rule of King Barom Trailokkanat also near kings, contrastive new buildings were added, including Wat Phra Si Sanphet. Notable buildings are Wihan Somdet Pavilion, Sanphet Prasat Pavilion, Suriyat Amarin Pavilion , Chakkrawat Phaichayon Pavilion, Banyon Ratanat Pavilion also The Tri Muk Building. These pavilions were completely doleful dominion 1767, leaving only damask foundations, porticoes and walls. The Tri Muk Building, a wooden essence with a brick foundation, was rebuilt force its original symmetry at the facility of mikado Chulalongkorn in 1907.