Don Zien | Colliers International | Milwaukee

Don Zien

Senior Vice President

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Professional Summary

I specialize in retail real estate with over 25 years of experience.  I have expertise with land transactions and a significant knowledge of the municipal approval process.  I have served as broker for number retail, medical, institutional, senior housing, and multi-family transactions.  My background incudes a wide range including faciltating due diligence to retail investment sales.  My versatile experience with not only sales but leasing make the development lifecycle a seamless process for my clients.  My determination, energy, focus to detail lack of fear of getting in the middle of challenges, and relentless work ethic assures that clients are experiencing unsurpassed real estate services.


Obtaining approvals for mid and big box retail throughout the state of Wisconsin.


University of Wisconsin Madison:  Economics and Communications undergrad
Milwaukee School of Engineering:  Associate Degree in HVAC Systems
Steamfitters Local 601: Apprentice to the HVAC industry and related technical training


Service Lines
Tenant Representation
Property Type
Retail, Land

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