CLARK PROPERTIES SAINT LOUIS: UNION SEVENTY CENTER
1.6 million SF of rentable industrial space | 92.68 acres
Marketing description
Clark Properties Saint Louis Portfolio: Marcus & Millichap is pleased to present the opportunity to acquire the Union Seventy Center Business Park located at 3901 Union Boulevard in Saint Louis, Missouri. The subject property consists of 1,640,597 square feet of rentable industrial space (2,204,279 square feet in total) and is situated on a combined 92.68 acres of land. Anchored by Triad Manufacturing, Clark Logistic Services, and Iron Mountain, the multi-tenant asset features 25 suites, 132 dock-high doors, 26 grade-level doors, and an unused rail spur operated by the Terminal Railroad Association of St. Louis. The property includes 8 paved lots, approximating 20 acres of parking lot/outside storage. Primely situated only 0.6 of a mile from Interstate 70, the property has easy access to the Saint Louis Lambert International Airport. With the property containing heavy tenant improvements that allow for specialized manufacturing and shipping activities, the anchoring tenants are relatively less sensitive to rent increases. Given the inflationary environment, rising industrial vacancy rates, and slowing rent growth, owning specialized assets that give landlords more pricing power over rents is growing in importance.
Investment highlights
- Building Features: Union Seventy Center Business Park consists of 1.6 million square feet of rentable industrial space on 92.68 acres. The specialized property is equipped with 25 suites, 132 dock-high doors, 26 grade-level doors, and an unused rail spur. With 8 paved lots across approximately 20 acres, the property allows for ample industrial outdoor storage space (IOS).
- Infrastructure Advantage: Sitting only 0.6 miles from I-70, the property has easy access to multiple major thoroughfares. The property’s rail capabilities give the property access to the third-largest rail hub in the U.S., with six Class I railroads.
- Anchoring Tenant: The property is anchored by a diverse set of tenants: Triad Manufacturing, Clark Logistic Services, and Iron Mountain. Triad recently extending their lease to 10 years, showing significant commitment to this site. The capital-intensive tenant improvements reduce the possibility of tenant loss.
- Industrial Outdoor Storage: Valued at $200 billion nationwide, the IOS industry has become an important asset class in the industrial market, helping to facilitate the boom in imports in recent years. Strict zoning laws restrict the supply of new IOS, increasing the value of existing properties.
- Market Fundamentals: Saint Louis industrial vacancy rate sat at 5.2% in 2025, outperforming the national average by 250 basis points, which rose to a 12-year high of 7.7%. For the first time in more than a decade, Saint Louis rent growth has eclipsed the national average, nearly tripling the rate of most markets at 4.7%. The general decline in rent growth in an inflationary environment with rising interest rates underscores the need for specialized properties (like the subject asset) that give greater pricing power to landlords
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