List of National Treasures of Japan (residences)

[1] The items are selected by the Ministry of Education, Culture, Sports, Science and Technology based on their "especially high historical or artistic value".

[3] In 2009, the early 20th century Akasaka Palace was designated as National Treasure in the category of "modern residences" (Meiji period and later).

[7] A main reception room is characterized by specific features: a recessed alcove (tokonoma); staggered shelves; built-in desks; and ornate sliding doors.

[5][7] Generally the reception room is covered with wall-to-wall tatami, has square beveled pillars, a coved and/or coffered ceiling, and wooden shutters protecting the area from rain (雨戸, amado).

In the 16th century Sen no Rikyū established dedicated "grass hut" (草庵, sōan) style teahouses characterized by their small size of typically two to eight mat, the use of natural materials, and rustic appearance.

[15][16] Sukiya-zukuri has the characteristic decorative alcove and shelf, and utilizes woods such as cedar, pine, hemlock, bamboo, and cypress, often with rough surfaces including the bark.

[16][17] Examples of sukiya style architecture are found at the Katsura Imperial Villa and the Black Study Hall of Nishi Hongan-ji.