The UD in San Sebastian is distinctive for its avant garde design and singular architecture set within green areas and a unique arboretum. A five-story building for new classrooms and offices (the Father Arrupe Building) in 1998 was the finishing touch for the original campus project.
In 2005, fitting out the Matteo Ricci Technology Building, the new Library and the head office of the Basque Institute for Competitiveness-Orkestra provided the campus with new and modern facilities.