In this project I analyze Paolo Soleri's concept of arcology \u2014 the combination of architecture and ecology \u2014 from a theoretical, symbolic, and physical perspective. I utilize these three viewpoints to determine what aspects of his theories are most effective for urban design. While his ideas are based on building "arcologies" from the ground up, I will be using the Phoenix Metropolitan area to determine how we could apply his ideas to existing cities without having to rebuild entirely. This past summer I participated in the 5-week construction workshop the Cosanti Foundation offers at the physical prototypical city of Arcosanti in Mayer, Arizona during which time I studied Soleri's work and participated in the construction of the city while also participating in the community dynamic there. I have found that while not all components of Soleri's theories translated well into Arcosanti, there are certainly some ideas that could be applied help to improve the City of Phoenix. I propose improvements to the pedestrian realm and an increase public space with an emphasis on utilizing the infrastructure and land that is already present for future development.