Tract home neighborhoods, vast open parks with no shade, and huge two or three-car garages: These are some of the characteristics used to define most residential areas across the U.S. While the needs and structures of the modern family have evolved since the 1950s, the ideal housing template has not changed in most cities. If we focus specifically on the Southern California desert region, we add one more variable to the problem: climate. The harsh desert conditions along with ill-designed mass housing projects, force residents to pay a high price for their desert accommodations. The current project, Regional Development: Multi-Family Housing in the City of El Centro, CA, focuses on architecture and interior design for a multi-family housing complex in a desert environment. This project focuses primarily on the Southern California region with the main case study being the City of El Centro in the Imperial Valley. The thesis research explores the history of bioclimatic architecture in desert cities. It examines the use of passive design solutions in these arid regions and their impact in creating comfortable spaces while lowering the costs of air-conditioning compared to traditional housing. The thesis also addresses the growth of bioclimatic architecture in Southern California and its regional applications.