In 2005, Powers & Company, Inc. was hired to provide historic preservation services for the rehabilitation of the U.S. Post Office-Main Branch at 30th Street. Completed in early 2011, the building was renovated into first-class office space.
The United States Post Office-Main Branch, occupying an entire city block, remains an outstanding example of the Art Deco Style Designed in 1931 and completed in 1935, this six-story building is significant as a major work by the architecture firms of Rankin & Kellogg and Tilden, Register & Pepper.