The Wilbur Chocolate Factory Building was an aggregate of over a hundred years of an original Philadelphia Confectioner's expansion. During its growth, it went from a single free-standing building to five architecturally distrinct buildings that mark the city's history of industrial construction. As the Olde City transformed from an industrial section to a residential/business parti - the factories were revisited as a mixed-use building. The complex is composed of 135 one-bedroom loft or bi-level floor plans, each equipped with built-in shelves, breakfast bars, balconies, etc. The residential complex offers contemporary amenities, such as a restaurant on the top floor attains views up the river and beyond to New Jersey, commercial space on the bustling Fourth Street facade and a full fitness center on the ground floor. The design problem was to unite the five different types into a coherent system of circulation and afford light and air for all the spaces.