PURPOSE: To form a prefabricated section variably by enabling a lighting window to be easily constructed on the wall upper-section of the prefabricated section.

CONSTITUTION: A box-type section is composed of a plurality of panel bodies, and a prefabricated residence with a room interior space in the internal section, which is formed with a plurality of prefabricated room sections to be adjacently arranged, is formed. Then, in the internal section of the prefabricated residence, a room interior space is formed by heaping up the lowstory prefabricated section 6 of a low box type with a opened upper surface, on the low-story prefabricated section with an Opened lower surface, and the lighting prefabricated section 7 of B box type with a lighting window 7f on a wall is used.