Chad Hansen was a Professor of English at Penn State and author of a surprise successful book, Witchcraft at Salem. Intended for an academic audience, the book was offered by three book clubs. The Hansens were friends of the Condees, and admired their Hajjar home as well as that of their family physician, Dr. Mebane. They therefore approached Hajjar about designing them a home. Hajjar suggested that they look at house plans that he had in progress. They were intrigued with the concept and agreed to it.
While Hajjar used the general floor plan and shoebox shape of his basic design, the very obvious difference is the inverted roof. Some have given the nickname "butterfly house" to it. While the original plans called for the current porch to be the usual breezeway connecting to a garage, the lot was of insufficient size and the garage was abandoned. As a consolation, Hajjar designed a rear deck.