Mark Oppelt has provided project design and management expertise to more than 350 K-12, civic and religious project in the San Antonio. He has worked 42 years as a project designer, project manager, architect of record and principal in charge. During that time, he has directed project teams on two Caudill Award winning projects; Ronald Reagan High School in 1999 and Samuel V. Champion High School in 2006.

In addition to those prestigious awards, his projects have won awards for innovation, process of planning, design and educational appropriateness for 11 other primary and secondary schools from the Texas Association of School Administrators, Texas Association of School Board and the Texas Society of Architects during his practice. 

Oppelt is a graduate of the School of Architecture from the University of Texas in Austin. He is a Recognized Educational Facility Planner by the Association for Learning Environments (A4LE) and a LEED Accredited Professional by the U.S.Green Building Council (USGBC). He is an active member of the American Institute of Architects (AIA), the USGBC and the Association for Learning Environments. He is the founding member and current President of the Land Heritage Institute—a 1,200-acre living land museum that provides lifelong learning experiences to students of all ages using its environmental and cultural resources.