Oca is the name given to the typical Brazilian indigenous housing. The term comes from the Tupi-Guarani language family.
They are large buildings, serving as collective housing for several families, and may reach in length. They are built through joint effort over one week, with a wooden structure and bamboo and straw cover or palm leaves. They can last up to 15 years. They have no internal divisions or windows, only a few doors.
See also Maloca Vernacular architecture
References and notes General COP8/MOP3, 16 March 2003. Amanhã, cerimônia ao pôr do sol inaugura ocas Xavante, by Marina Koçouski. Arte Indígena Citations