Tom Liebel, AIA, LEED AP is an Associate Principal with Marks, Thomas Architects, a Baltimore-based multi-disciplinary design firm. Tom has been involved in integrating sustainable design principles into a variety of ground-breaking adaptive use and historic preservation projects over the past fifteen years. Projects Tom has worked on have received multiple local, state and national awards for design, smart growth, sustainable design and historic preservation. Author, critic and mentor, Tom has consulted on green projects nationally and internationally and has recently authored a chapter on sustainable design for a National Trust for Historic Preservation Main Street Program publication.

One of the first 25 LEED Accredited Professionals in the country, Tom graduated magna cum laude from the University of Cincinnati with a Bachelor of Architecture degree and a certificate in historic preservation. He also holds a Master of Liberal Arts degree from the Johns Hopkins University. Tom has actively worked to promote legislation supporting preservation and sustainability at the local and state level, and has recently served on the Built Environment Workgroup of Baltimore City’s Sustainability Taskforce, the State of Maryland’s Green Building Taskforce, and the Governor of Maryland’s Land Planning and Resource Conservation Transition Team. He also chairs the Baltimore AIA’s Committee on the Environment, is a director of AIA Maryland and the Green Building Institute, and is an active member of the United States Green Building Council, the Maryland Green Building Network, the National Trust for Historic Preservation and Preservation Maryland.