Modular portable restroom

A modular portable cabana-type restroom includes a roof, base platform, foot portions, side wall panels, a back wall panel, four corner portions and a door. The side wall panels and back wall panel are provided with vertically-disposed hooks for interlocking with complementary slots along the edges of the corner portions. The roof is provided with clips for engaging the corner portions. This permits convenient interlocking removable assembly of the wall panels, corner portions and roof without the use of mechanical fasteners, such as rivets, screws or nuts and bolts. Recesses in the foot portions accept the insertion of the corner portions and corners of the base portion, which are then secured together through formed apertures using a minimum number of mechanical fasteners. This provides for easy assembly and disassembly of the restroom for transport, repair and storage.