Abstract: A pet refuge is disclosed which may be installed in a window opening. The pet refuge includes a projecting enclosure which extends into the outdoors and which is partially constructed of screening material to form a protected pet dwelling space. This allows a pet animal to enjoy the sights, sounds and smells of the out of doors. In a region adjacent the window opening, the projecting enclosure has a closed threshold wall which seals the protected pet dwelling space with respect to the indoors. The closed threshold wall includes a door which is openable at will by the pet to permit the pet to pass between the indoors and the protected pet dwelling space within the screened enclosure. Thus, the indoor area is sealed with respect to the outdoor area so as to prevent loss of heat or air conditioning from the indoor area while preventing entry of outside elements, such as wind, rain, drafts, dust, or the like, into the indoor area.