Don Leidy, Managing Principal

With more than 30 years of experience in the industry, Don is recognized as one of the leading experts in the United States in the planning and design of operations and maintenance facilities. Since his days at RTD in Denver working on his first bus maintenance facility, he has been inspired to address the challenges of complex facility industrial design projects with innovative solutions. His passion for making a difference in the industry is based on his desire to elevate the quality of the work place environment. In 1995, Don formed Maintenance Design Group, LLC to assist owners, architects, and engineers with the complex issues in the design of public works, transit, and other maintenance facilities. His experience encompasses programming, master planning, facility functional design, and preparation of equipment requirements and specifications. He has worked on more than 500 projects across North America, including the planning and design for municipal facilities, transit bus and rail maintenance facilities, and school district facilities. He also has designed operations and maintenance facilities for airports, universities, water, wastewater, postal service, and resort clients.

Return to see all of our Leaders

  • RTD Denver Light Rail Maintenance Facility
  • City of Phoenix West Operating Facility
  • LA Metro Division 13 Bus Operations and Maintenance Facility

Don Leidy, Managing Principal

Don is recognized as one of the leading...


Ken Booth, Mountain Region Manager

Leading our Denver office, Ken's 18+ years of...


Jon Holler, Southeast Region Manager

Jon has more than 20 years of experience...


Mark Ellis, Central Region Manager

A Senior Project Manager in our Houston office,...


Steve Radomski, AIA, Northwest Region Manager

Steve leads the Eastern Region from our Baltimore...

Darren Pynn

Darren Pynn, AIA, Southwest Region Manager

Darren has more than 30 years of planning...

Jeff Lohr_TEMP_web

Jeff Lohr, RA, Eastern Region Manager

Jeff Lohr, a Senior Facility Design Manager in...