Established in 1991, Diamond Development Group is a real estate investment firm focused on the acquisition, development, and long-term ownership of high-quality retail assets in urban and high-density suburban markets across the West Coast. The firm has extensive experience in ground-up development with a strategic emphasis on properties that serve diverse and multicultural communities.

Through long-standing relationships with leading brands from the United States, China, India, Japan, Korea, and Taiwan, Diamond Development Group has become a recognized owner and steward of destination retail centers in Southern California. The firm’s portfolio includes landmark projects such as Diamond Square in Rosemead, Diamond Plaza in Rowland Heights, and Diamond Jamboree in Irvine—centers that attract regional, national, and international tenants and customers alike. With a disciplined investment approach and deep market insight, Diamond Development Group is well positioned to continue shaping retail environments that reflect California’s evolving demographic and economic landscape.