A closet or enclosure 100 (closet) fit into an attic. A panel (110) forms the bottom of the closet. The panel can be lowered to the living space below manually or by using a return spring or electrical means. The panel holds a cabinet, box, or other storage item (105 or 2225). Air space (150) around the cabinet or items insulates it from thermal contact with the walls. Alternatively a cabinet is hung from a restraining member (145), or arm (1105), so it can be raised for storage and lowered for access. In this aspect, the panel is secured to the bottom of the cabinet. Optional vents (155) and fan (160) urge circulation between the air space and the living space, reducing temperature extremes in the air space and hence the cabinet. In other aspects, air treatment units (HVAC, dehumidifier, etc.) condition the air within the closet or enclosure.