Why IOS Keeps Outrunning the Warehouse It Sits Next To

Walk any industrial corridor in the Sun Belt and you'll pass two parcels that look like cousins: a tilt-wall warehouse with a clean truck court, and right beside it, a gravel yard with a chain-link fence and a single-story office trailer. On paper the second one looks like the lesser asset. In practice, it has been quietly outperforming its neighbor for years.

That gap is the whole thesis behind Industrial Outdoor Storage, and it is worth understanding before you write the check.

The supply story nobody can fix

Warehouse can be built. Give a developer entitled land, a GC, and eighteen months, and a new building appears. IOS land — flat, fenced, heavy-axle-rated, zoned to allow outdoor storage — mostly can't be created anymore. The parcels that work were grandfathered in before municipalities decided gravel yards were an eyesore. New zoning almost never adds them back.

So you have a fixed, shrinking supply of usable land sitting in front of growing demand from trucking, last-mile logistics, equipment rental, and contractors who need somewhere to park a fleet. When supply can't respond to price, rents do the responding instead.

Rent growth without the capital drag

The second piece is what you don't spend. A warehouse tenant rolls out and you're often staring at six figures of TI, fresh dock equipment, maybe a roof conversation. An IOS tenant rolls out and you re-grade the gravel and re-stripe. The asset is the dirt, the fence, and the access — not a building with twenty systems that age.

Lower capex per dollar of rent means more of every rent increase falls to the bottom line. That's the quiet compounding most pro-formas understate, because they model IOS like a small warehouse instead of like land that happens to produce income.

Where the spread can burn you

None of this is free money, and the deals that don't pencil usually fail in the same three places:

• Entitlement risk. The use is legal today; confirm it stays legal under the current zoning and any pending overlay. A non-conforming use that can't be rebuilt after a fire is a very different asset.
• Environmental. Decades of trucks and equipment on bare ground means you order the Phase I and you actually read it.
• Tenant durability. A handshake month-to-month at below-market rent is not the same income stream as a credit tenant on a real lease, even if the yield looks identical going in.

How we underwrite the spread

The question we ask isn't "what's the cap rate." It's "what is this spread to warehouse paying me for, and do I believe it persists?" If the answer is irreplaceable land plus structurally low capex plus real demand, the tighter cap rate is justified. If the answer is just optimism about rent, it doesn't pencil — and we pass.

The yard wins because it's the thing you can't build. Price it like land, not like a building, and the math tends to follow.