The present disclosure provides a Tetris house in which a structural material and an insulating material are combined with each other to further save a space, and an exterior of the structural material is treated with neoprene to block a heat bridge between an inside and an outside and prevent condensation. The Tetris house includes a plurality of structural materials which are installed in regions corresponding to respective sides of a hexahedron, and a connector which is installed in a region corresponding to each corner of the hexahedron to connect adjacent structural materials to each other, in which the structural material includes a metal pipe, a first insulating material with which an inside of the metal pile is filled, and a second insulating material which surrounds an outside of the metal pipe.