Spec-Building Vacancy Risk Lands on Different Balance Sheets in Rockford and Paducah
Rockford, Illinois put a private developer in front of the vacancy risk on a 334,800-SF spec shell. Paducah, Kentucky is proposing to borrow $6 million in GO notes for a 100,000-SF building the local IDA would own. Both use a state grant to close the capital stack. The structures diverge on who absorbs carrying cost while the building sits empty, who can sign a lease without a public vote, and how fast the city can respond when a site selector calls. If your commission is weighing a spec play, the financing structure sets your risk profile and your deal speed before the first foundation drawing.
Spec-Building Vacancy Risk Lands on Different Balance Sheets in Rockford and Paducah
Rockford, Illinois put a private developer in front of the vacancy risk on a 334,800-SF spec shell. Paducah, Kentucky is proposing to borrow $6 million in GO notes for a 100,000-SF building the local IDA would own. Both use a state grant to close the capital stack. The structures diverge on who absorbs carrying cost while the building sits empty, who can sign a lease without a public vote, and how fast the city can respond when a site selector calls. If your commission is weighing a spec play, the financing structure sets your risk profile and your deal speed before the first foundation drawing.
Specification Threshold
Most tier-3 spec buildings are designed for tenant breadth, which in practice means they meet logistics requirements and fall short of manufacturing ones. The gap is structural and largely unfixable after construction.
Electrical service is the first screen. A logistics spec delivers 400–600 amps of three-phase service. A CNC machining or robotic welding tenant needs 800–2,000+ amps at 480V with multiple voltage systems. Post-construction upgrades require utility coordination, new switchgear, and often a transformer replacement at the site. Floor load is the second. Distribution slabs run 125–150 PSF. Machining and press operations need 250–500 PSF, with independent foundations for point loads regardless of slab rating.
Beyond power and slab, manufacturing tenants require process utilities that logistics buildings do not include: compressed air distribution, process floor drains, natural gas drops to production zones, overhead crane provisions. A cost segregation study of a 140,000-square-foot manufacturing plant valued these systems at $8.3 million — 39% of total building cost.
Evaluate spec building designs against target-sector thresholds before steel goes up. Column grid, slab depth, and crane structural capacity cannot be changed after erection.