In 2009, Revelations Architecture conceived the E.D.G.E. (Experimental Dwelling for a Greener Environment) House, a 360-foot modular concept home that won the AIA Small Projects Award in 2011. Last year, principal architect Bill Yudchitz collaborated with his son, architect Dan Yudchitz, on the Essential House. A more pragmatic and affordable version of its predecessor, this year’s two-story cube measures 1,000 square feet, and includes a sleeping loft, storage and a utility room. “The Essential House could be put on any infill site in the U.S.,” asserts Bill Yudchitz.