The Mason City Public Library, originally designed by Holabird & Root in 1939, needed to be modernized to meet its community’s evolving needs. The renovation provides all new and restored finishes and furnishings, as well as new mechanical and electrical systems for state-of-the-art lighting and technology throughout the facility. The circulation through the building was modified to increase public use of the ground floor spaces. The new commons serves as a lobby and informal gathering space with internet access, café, and small retail area. The building’s beautiful existing exterior and distinctive interior wood finishes were restored to maintain the building’s historic character while the re-organized interior spaces give it the functionality to serve the community for the next half century.