Abstract: A multi-level, accessible home for pets with a building structure with at least a first story with first floor flooring, a second story with second floor flooring, a plurality of outer walls, and a roof supported by the outer walls. A first floor door is disposed in an outer wall of the building structure for permitting ingress and egress relative to first story of the building structure, and a vertical communication connection, such as stairs, connects the first floor flooring to the second floor flooring. A second floor door can be disposed in an outer wall of the building structure, and a porch can be retained by the building structure adjacent to the second floor door. An indoor/outdoor sustenance retention system can be adjustable between a refracted position and an extended position. The second story and the roof can be removable as a unit.