Abstract
The purpose of this research is to determine the architectural characteristic of Mu-cheom-dang by paying attention to how context, condition of land and existing building were understood and approached by Lee, Eun-juk, who is a philosopher, Confucian scholar, and architect, when he built Mu-cheom-dang in anch'ae. Reinterpreting the existing condition of land, Lee, Eun-juk put Mu-cheom-dang turned about 25 degrees to the south-west from the left-side of the anch'ae for setting up the symbolical axis representing Yeokang Lee's chongga. Moreover, he applied the kan module of 2,200mm (the module was not generally used in a house of the upper class, but applied to the anch'ae) to 3-kan Taechong-maru of Sarangbang in Mu-cheom-dang. Therethrough, he expressed a plan-proportion of 1:$\sqrt{2}$ which was referred to as the most ideal form. Also the kan module was applied to hyangdan of Yeokang Lee's chongga and the plan-proportion of 1:$\sqrt{2}$ was made again. Furthermore, Mu-cheom-dang shows the proportion of esthetical figure, which is similar to the rule of other traditional buildings having proper balance, such as 1:1.2 mutual ratio between the height from the head of base to the underside of eaves and the height from the underside of eaves to the top of roof, 1:1.02 mutual ratio between the average length between columns and the height of the columns and 0.49 mutual ratio between the height of the base and the height of the column. from these facts it can be understood that Mu-cheom-dang was built by his inbuilt sence of beauty of proportion. Finally, through the extending build of Mu-cheom-dang, his plan of making the symbolical axis representing Yeokang Lee's chongga later led the hyangdan and the sadang of Mu-cheom-dang to follow the asix. For that reason it is understood that the extending build of Mu-cheom-dang became the foundation for establishing the identity of the head family.