Traditionally, this institution of higher education was primarily a residential campus, but in 1978, Notre Dame College began to offer a program known as Weekend College, or WECO. Local residents whose schedules prevented them from taking classes during the normal work week enrolled in weekend college classes to earn a degree. In 2003, WECO celebrated its 25th anniversary. On December 8, 1983, based on its architectural importance, Notre Dame College's historic Administration Building, built in 1927 in the Tudor Revival and other styles, was added to the National Register of Historic Places as Notre Dame College of Ohio. The building, designed by architect Thomas D. McLaughlin and built by contractor John T. Gill, originally housed the entire college.