Tower Plaza Condominiums (555 E William St, Ann Arbor: http://www.towerplaza.net; 734-994-5812) was constructed in 1971-72 and is the tallest building in Ann Arbor, at 26 stories plus various antennas. (The next tallest is University Towers, on South University, at 18 stories.)
The entire glass curtain wall on the south side of the building was replaced in 2007. The recladding was handled by O'Neal Construction.
The location has a Walk Score of 97.