Berm House Plans: Originally a clever response to the 1970s energy crisis, berm house plans are our most energy efficient house plans. By literally tucking a portion of itself into the earth, a berm home takes advantage of the relatively steady temperatures that dirt enjoys. During the summer, berm homes use less energy to maintain a cool temperature; during the winter, berm homes use less energy to stay warm. Berm house plans are smart, eclectic, and a great way to conserve energy. If you’re looking for an energy efficient house design, check out our selection of berm house plans.