Say what you will about the new city hall's aesthetics, at least it's more sustainable than its predecessor.
"The municipal center project includes the new Justice Center, landscaped municipal plaza rain gardens, green roof promenade, and porous pavement in the parking lot. It obtained a total of 44 LEED points. Quinn Evans was the architectural firm for the Ann Arbor Municipal Center. The landscape architects were InSite Design Studio Inc. with Conservation Design Forum."