The Nangtshang is located at Ngang village under Chhoekhor gewog. It was founded by tertoen Pema Lingpa in the 15th century. It was initially built as a one-storied as a residence during the stay at Chhoekhor. Later, he went to Tamzhing lhakhang. In the 16th century, Angay Dechen extended the structure to four storied. Subsequently, the structure was extended in the 19th century and 20th century by the descendants. However, the initial ground floor was completely covered which was inaccessible. The structure is different from any other old house with a red band of kheymar and three lhadhar (flag) which signifies the residence of a noble family. In 2006, it was converted into a farmhouse for tourists.