MESA, ARIZ. — Diversified Partners Development Co. is developing Mesa Ranch Plaza, a regional shopping center located at the northwest corner of Southern Avenue and Stapley Drive in Mesa. The 18-acre project will feature eight buildings totaling 214,000 square feet. Retail anchors include La Curacao, a California-based chain of department stores, and Pro’s Ranch Market. The first phase, which is expected to be complete by this fall, included off-site improvements, on-site improvements and construction of six retail buildings. The Weitz Company is serving as general contractor; Robert Kubicek Architects & Associates is providing architectural services for the project.