The tallest one to be demolished in Austin that was in fine shape, infact, it was only 52 years old, (the newest part was a mere 36 years old), was the University of Texas Old Main. Construction started in 1883 and was completed in 1899. It was demolished in 1935 to make way for the University of Texas Tower. Old Main was 160 feet tall with 5 floors. It was a real tradegy to lose it, I say it was Austin's greatest loss of a piece of architecture. It was actually the first structure to be built for the university. When it was built it was the 2nd tallest building in Austin.