Vice President

Mark Hejna

Mark A. Hejna, Sr. is a Vice President in the Brokerage Division of Gundaker Commercial Group. His previous role was as project manager for the Gundaker Commercial Group Construction Division. With his more than 28 years experience in the St. Louis construction industry, Mark has overseen several residential, commercial and land development projects. Among Mark’s accomplishments are a 50-unit luxury townhome community, development of 103 acres into residential lots, a 100-acre mixed use development, a 17-acre commercial land development project, land developments of 79 acres and 78 acres into residential lots, and a 140-unit apartment renovation project. With land development as one of Mark’s top strengths, Gundaker has relied upon his expertise to oversee projects across the St. Louis metro area.

Mark specializes in industrial and office brokerage transactions. He continues to focus on land sales and development.

Mark studied at the University of Missouri St. Louis. His extensive record of achievement has built him a reputation for quality, hard work, persistence and the ability to maintain strong client relationships. Mark is a firm believer in continuing education and has taken courses in plan review, estimation, code enforcement, business management, American Concrete Institute courses, certification for erosion control, and various computer software application courses.

Mark’s dedication to his career keeps him striving to achieve the highest standard on every project he
undertakes. He is a licensed real estate agent, and a member of the St. Louis Engineer’s Club and the American Concrete Institute. He has served as a board member for the Catholic Youth Council.


National Association of Realtors
Missouri Association of Realtors
St. Louis Association of Realtors
International Council of Shopping Centers
Home Builders Association
Associated General Contractors of America

Industry Experience

Land Development
Crimson Oaks
Glen Meadows
Highway K Retail
Mid Rivers Commons
Parks Air College
Peine Lakes
Peruque Hills Estates
Pevely Pointe Apartments
Post Meadows
Prospect Lakes
Rivermont Ranch
Sterling Crossing
Woodlands at Bear Creek
290 Hanley Industrial Court


Farmington Shopping Center
Fontbonne Exterior
Mid Rivers Commons


Colonial Apartments
Lackland Plaza Apartments
LeCoeur Apartments
Oak Tree Apartments
O’Fallon Lakes Apartments
Pevely Pointe Apartments
Spyglass Summit

Gundaker Commercial Group

2458 Old Dorsett Road

Suite 311

St. Louis, MO 63043