Complex sentence: It previously served as a post office and a courthouse for the United States District Court for the Western District of Texas, and it is currently owned by the University of Texas, and serves as the administrative headquarters for the University of Texas System.
Split into simpler sentences: It previously served as a post office and a courthouse for the United States District Court for the Western District of Texas. It is currently owned by the University of Texas, and serves as the administrative headquarters for the University of Texas System.