It is a building site where government officials used to stay temporarily when visiting Gangneung during the Goryeo and Joseon Dynasty. According to the records from the Joseon dynasty, it was built in the 19th year of King Taejo of the Goryeo Period (936) and had 83 rooms inside. However, only the front gate of Gaeksa (national treasure no. 51) remains, which is one of the oldest building from the Goryo period. It also houses the tablet written by King Gongmin.

According to the excavation investigation on the site for the construction of Gangneung City Hall building, it turned out that the site is a reservoir of data for research on building site of the government offices during the Goryeo and Joseon Dynasty. Also, Gangneung's local history book, Imyeongji deems it as a crucial area with historical significance that tells us history and culture of old Gangneungbu.

It was designated as the national historic site no. 388 on 11th July 1994, under the name of Site of Imyeonggwan Guesthouse, and then changed into Gangneung daedohobu Government Office on 27th November 2014. To the south, there is Gangneung Imyeonggwan Sammun (National treasure no. 51). Currently, the restoring construction of Jeondaecheong and Jungdaecheong is underway for excavation and autoradiographic investigation.