As part of his original drawing set for the Olfelt House, Frank Lloyd Wright included a location for a future wing. The future wing was never built, as Wright passed away during construction of the Olfelt House. It does, however, indicate an understanding that the modest house would benefit from an addition, and provides a provisional location and form for the expansion. Note that this original drawing also includes doors connecting each of the bedrooms to the terrace. As designed, the outdoor space would link the two wings of house. The Olfelt's son explained that his parents requested that the doors be changed to windows, as they were uncomfortable with the children having direct access outside from their bedrooms.