Abstract: An all-in-one cat housing apparatus for providing living, eating, and bathroom space for a cat includes a housing structure having a top side, a bottom side, a front side, a rear side, a left side, a right side, and an inside. A plurality of apertures extends through to the inside. An upper divider is coupled within the inside to form an upper compartment between the upper divider and the top side. A lower divider is coupled within the inside to form a middle compartment between the lower divider and the upper divider and a bottom compartment between the lower divider and the bottom side. A drawer is coupled within the upper compartment. The drawer is slidable through the top front aperture and is configured to receive cat litter to function as a litter box. A scratching post is coupled to the top side of the housing structure.