The invention discloses a structure characterized by movable, detachable or foldable components, and particularly relates to a combined house unit. The combined house unit comprises an L-shaped body, wherein the body comprises a house surface module and a house body module; the house surface module is positioned at the upper end of the house body module; the upper end face of the house surface body is arranged obliquely; the lower end of the upper end face of the house surface module is positioned on the inner side of an included angle of the L-shaped body; the combined house is formed by combining a plurality of combined house units in a plane. Compared with the conventional square or long-strip unit, the combined house unit adopting an L-shaped minimum unit layout has the advantages of more combined surfaces, realization of a plurality of combination ways in a plane, and richer and more diverse combination forms.