The original Nevins Memorial Library was built in the nineteenth century, in a style known as Richardsonian Romanesque. The addition, by Tappe Associates, extends off the back of the building. David King worked on all phases of the project except schematic design. He designed the atrium and interiors of the new addition, as well as the final scheme for the facades. The detailing in the addition is meant to recall the fine original woodwork, albeit in a more modern architectural language.