The Company Behind the Developments.
Since 1988, we’ve built a track record of solving challenges others can’t, managing complexity with precision, and delivering results that last. Our success comes from an uncommon combination of vision, discipline, and relationships — and a portfolio that proves we perform at every stage.
From Foundation to Future
For nearly four decades, we’ve transformed underutilized spaces into
destinations that drive growth, create opportunity, and stand the test of time.
1980s
Founded in the 1980s with a focus on office and industrial developments throughout Central Illinois—establishing the foundation for future growth and long-term partnerships.
1990s
Established as a recognized leader in real estate development, delivering projects like Hamilton Square and EastPort Plaza that reinforced Cullinan’s reputation for quality and long-term value.
2000s
Expanded regionally with large-scale, high-impact developments such as The Shoppes at Grand Prairie and East Court Village, broadening Cullinan’s reach and diversifying across multiple asset types.
2010s
Grew into a nationally active firm, delivering complex, high-performing projects across government, office, retail, and mixed-use sectors—highlighted by Streets of St. Charles in the St. Louis region and the Austin VA Clinic in Texas.
2020s
Recognized as a best-in-class developer, owner, and operator with a growing portfolio of government, healthcare, multifamily, and mixed-use projects, including Rock Run Collection and multiple VA healthcare facilities nationwide.
Recognized. Certified. Trusted.
