ZDI, LLC is a Scottsdale-based company specializing in real estate development and construction. We have been in the industry for more than twenty years, and in that time overseen the successful completion of projects, totaling over $110 million. Our project list is extensive, and includes restaurants, hospitals, retail and office complexes, high-end custom homes, medical offices, and site development. With each new development, we relentlessly pursue a finished project that complements and enhances its surroundings.
Bill and Mary Kostrivas founded ZDI in 1991. What began as a two-person start-up has grown steadily for two decades, surviving many cycles and fluctuations in the market. ZDI was built on the principles of hard work and integrity, and by putting these principals into practice we’ve earned an excellent reputation as a developer and general contractor. Our partners and clients feel confident any project they start with us will be completed with excellence.
What Our Clients Have to Say...
ZDI has completed several tenant improvement projects for us and they have never failed in their professionalism, their focus on detail, and flexibility in completing our projects. click here for full letter
-Lauren Gorman | Wolff Urban Development
Bill Kostrivas, his general managers and their team worked closely with us on every phase of the projects... They are an incredible company and deliver service with integrity, honesty, and excellence in what they do. Desert West Ob/Gyn, would highly recommend ZDI. click here for full letter
-Cindy Bowen | Desert West OB/GYN, Ltd.
Our architect recommended Bill Kostrivas of ZDI. Bill was the most impressive...I appreciated his straight forward and honest approach. We reached an agreement and I learned honesty and integrity are core principals of Bill, Mary, and everyone who works at ZDI. One can rely on what they say. This is a most admirable trait. click here for full letter
-Terry Gould | Attorney at Law