When people ask me what makes one flex building worth more than another, ceiling height is usually the first thing I bring up. It’s the one physical feature that matters most and the one you can’t change.
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Measure clear height accurately: Document clear height at multiple points in each bay. Account for joists, ducts, sprinkler mains, and lighting fixtures. Measure to the very bottom of the lowest obstruction. -
Compare to market standard: Research what clear heights other flex buildings in your market have. Know whether you’re at or above the 16-foot threshold, or below it. -
Document height in marketing: Highlight ceiling height prominently if you’re at 16+ feet. It’s a primary value driver. If you’re below 14 feet, acknowledge it and focus on tenant fit. -
Factor height into tenant targeting: 18-foot buildings attract different tenants than 12-foot buildings. Market to the right segments based on your actual clear height.
The 16-foot threshold
Below 16 feet clear, you’re in office-warehouse territory. Plenty of tenants can work with 12-14 feet. The space is functional for a contractor who needs to park a van inside, store some materials, and do paperwork. But you lose the tenants who need to stack product vertically or operate equipment with any height.
Clear Height Value Impact
On comparable 10-unit flex parks with 2,000 SF units in Carolina markets:
- 12-14 feet clear: Lower tenant demand, $8-9 NNN rents, 7.5-8.5% cap rates
- 16 feet clear: Better tenant pool, $9-11 NNN rents, 7.0-7.5% cap rates
- 18+ feet clear: Wide tenant pool, $10-13 NNN rents, 6.5-7.0% cap rates
At 16 feet and above, you open up to a much broader tenant base. E-commerce operators can install real racking. Small distributors can stack pallets. Equipment can move freely. The space feels like a real industrial building instead of a glorified garage.
The rent difference
In most Carolina markets, the jump from 14 feet to 18 feet of clear height adds $1-2/SF to annual rent. On a 10-unit flex park with 2,000 SF units, that’s $20K-40K per year in additional income. At a 7.5 cap, that’s $265K-530K in building value. Just from ceiling height.
I’ve seen it firsthand comparing buildings I own. A flex park in Spartanburg with 18-foot ceilings leases faster and for more money than a comparable park with 14-foot ceilings a few miles away.
New construction is pushing the bar
Modern flex being built now typically has 18-24 foot clear heights. That’s the new standard. If your existing building has 16+ feet, you’re competitive with new construction at a lower price point. If you’re at 12-14 feet, the gap between your building and new product is growing.
This doesn’t mean low-ceiling flex buildings are worthless. Far from it. The contractor and service tenant pool is huge and many of them don’t need more than 12-14 feet. But the premium for higher ceilings is real and it shows up directly in the sale price.
One more thing
Remember: clear height is to the lowest obstruction, not to the roof deck. Joists, ducts, sprinkler mains, and lighting all reduce your usable clear height. Measure to the bottom of whatever’s hanging down. That’s the number that matters to tenants and to buyers like me.
Seller takeaway
Own a flex building in Asheville or anywhere in the Carolinas? Understanding your clear ceiling height and how it affects your building’s value is critical to pricing. Call Jim at 704-600-3839 to discuss what your height brings to the market.
Own a flex building in Asheville or anywhere in the Carolinas? Call me. 704-600-3839.
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