With a name like Cottage in a Day, it is easy to imagine relaxing in a serene, forested setting. And these factory-built homes designed by architect Michael Fitzhugh certainly seem to fit that role. With a rustic look that is characterized by structural insulated panels and natural wood finishes both on the interior and exterior, the home’s materials conserve resources while also being energy-efficient. Each structure is based on 14-square-foot-modules that can be arranged in various set-ups, making it possible to use this prefab system to create a shelter suitable for a weekend in the woods or as a more permanent home in a rural landscape.