About Us Bill & Mary Kostrivas started in real estate in Phoenix over 30 year ago. They founded our affiliated company ZDI LLC, in 1991. ZDI LLC specializes in real estate development and construction. As our portfolio grew, Mary began to realize and appreciate the value of quality property management and representation.
In 2009, ZDI Realty Advisors, LLC was founded. Our experiences in every aspect of real estate give us a comprehensive understanding of the local market. As developers and owners we are uniquely equipped to recognize the needs of both tenants and landlords. Few can better understand the unique challenges and opportunities in today's marketplace. When we first began, all of the properties we managed were our own. Although this is no longer the case, we still treat each project as if it was. Our property management portfolio includes Class A Office Buildings, medical and dental offices, restaurants, and retail space. We currently manage over 200,000 square feet of space throughout Arizona. |