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Dianne Oroz | Colliers | Washington, DC

Dianne Oroz

Senior Project Manager

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Professional Summary

Dianne has over 15 years of experience in project management, architecture, interior design, and construction. She has managed millions of square feet of combined commercial, residential, retail, mixed-use, educational, and government projects.  Dianne is responsible for overseeing the project management of all projects located in the Washington, D.C. Region. Dianne works closely with the Brokers, Corporate Solutions, and Government Solutions  Teams, as well as Matt  Gannon the Executive Managing Director of the DC Region, to ensure the successful operation and management of all projects for our clients within Washington, D.C., Virginia, and Maryland area.  Dianne completed her MBA from the University of Virginia’s Darden School of Business.  Her combined interdisciplinary skills and experiences play a huge role in problem-solving for clients. 


MBA, University of Virginia - Darden School of Business

M.Arch, University of Illinois at Chicago

A.A.S., New York School of Interior Design 

B.A. University of Pennsylvania 

Memberships & Involvements

  • Associate – American Institute of Architects  
  • Associate – International Interior Design Association
  • Member – CREBA 
  • Member - CREW 


“Dianne has provided a knowledgeable, calm, patient  (and yet forceful when necessary) expert presence to our cross-functional team. I appreciate how quickly she gained an understanding of Darden and our unique culture of the type of educational experience we deliver for our students, and then utilizing that understanding to make sure that we are focusing on the important elements."
-Dean Krehmeyer, Chief of Staff UVA Darden School of Business

“Dianne did a fantastic job managing the process for the  project and working to engage the consultants in an e ffort to coordinate construction documents across all disciplines with ongoing construction, digging in and doggedly pursuing the best possible results.” 
-Cynthia Bowden, Senior Director Tishman Speyer

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