The DuPont Building, occupying the entire block bound by 10th, 11th, Orange and Market streets, was one of the first high-rises in Wilmington, Delaware. It looks out over Rodney Square. The building was built in phases, with the original building constructed in 1908 fronting Rodney Square. At the time, the building housed the offices of DuPont. In 1913 the building was expanded into a "U" by adding wings along 10th and 11th streets, the DuPont Playhouse was added, and a portion of the original 1908 section was converted into the Hotel duPont.