What qualifies as IOS
- Low building coverage. A shop, maintenance building, or office on a large yard. Value is driven by usable acres, not building square feet.
- Improved yard. Gravel, crushed concrete, or paved surface that holds up to heavy trucks, plus drainage, fencing, lighting, and gated access.
- Entitlement. Zoning or permitted-use status that allows outdoor storage, truck parking, or contractor yards.
- Access. Close to highways and interchanges, with ingress and egress that can handle tractor-trailers.
Common IOS sub-types include truck and trailer parking, equipment storage and rental yards, contractor yards, container and materials staging, and fleet maintenance sites. They are related but not interchangeable, and each draws a different tenant pool.
Why zoning is most of the value
Many municipalities have downzoned or restricted outdoor storage and truck-intensive uses over the past few decades, which limits new supply. A site with clean, verified entitlement for outdoor storage is often worth meaningfully more than an otherwise identical tract that would need a rezoning or conditional use permit. The rating agency KBRA has pointed to zoning restrictions, public opposition, and limited strategically located land as reasons new IOS development has been constrained while demand has grown, as summarized by Connect CRE.
Texas has a wrinkle that matters here. Houston has no conventional zoning ordinance and relies on deed restrictions and other regulations, and Texas counties generally have limited zoning authority outside city limits. That can open sites in unincorporated areas or extraterritorial jurisdictions along I-35, I-10, and SH 130, but it shifts the diligence to deed restrictions, platting, floodplain, county and TxDOT access rules, and environmental review. Never assume a use is allowed; confirm it in writing.
IOS cap rates and pricing in 2026
National research published in 2026 puts stabilized, institutional-quality IOS at roughly 6.00% to 6.75% cap rates in primary markets and 6.75% to 7.75% in secondary markets, about 25 to 75 basis points above comparable traditional industrial, according to Matthews. The same research put IOS development yields at about 7.5% to 9.5% in primary markets and 8.5% to 10.5% in secondary markets, which is the spread developers are building toward.
Smaller, non-institutional Texas sites with short-term tenants, gross leases, or unverified entitlement will trade wider than those ranges. Pricing is often quoted per usable acre or per square foot of land as well as by cap rate.
How investors underwrite an IOS site
| Item | What buyers check |
|---|---|
| Entitlement | Zoning or permitted use for outdoor storage, CO, deed restrictions, any legal nonconforming status |
| Usable acres | Net of setbacks, detention, easements, floodplain, and slopes |
| Rent | Rent per usable acre per month versus market, lease term, escalators, and whether the lease is net or gross |
| Tenant | Credit, how much they have invested in the site, and how hard they would be to replace |
| Environmental | Phase I at minimum; fueling, maintenance, washing, and stored materials raise contamination risk |
| Site work | Surface condition, drainage, fencing, lighting, and power, plus what it costs to bring them up to standard |
| Exit | Alternative use and land value if the outdoor storage use goes away |
Turning land into an IOS asset
For landowners along Texas Triangle corridors, IOS can be a way to generate income from land that is not ready for vertical development. The usual path is to confirm entitlement, budget the yard improvements (surface, drainage, fence, lighting, gate), lease to a fleet or contractor tenant, and either hold for income or sell as a stabilized asset. The math works when the stabilized value at a market cap rate is comfortably above land cost plus improvements, which is the yield-on-cost spread above.
Frequently asked questions
What does IOS stand for in real estate?
Industrial outdoor storage: land used mainly for outdoor storage and parking of trucks, trailers, equipment, and materials, with little building.
What is a typical IOS cap rate?
In 2026, roughly 6.00% to 6.75% for stabilized institutional-quality assets in primary markets and 6.75% to 7.75% in secondary markets, per Matthews research. Smaller or less-certain sites trade wider.
Can I use my land in Texas for outdoor storage?
Maybe. Inside city limits it depends on zoning and permitted uses. Outside city limits, Texas counties generally have limited zoning power, but deed restrictions, floodplain rules, platting, access permits, and environmental issues still apply. Get the use confirmed before you lease or buy.
This guide is general information, not legal, tax, environmental, or investment advice. Market figures are from the cited third-party sources and change over time. Roesinger LLC is a licensed Texas real estate broker.
About the author
Zach Roesinger is the designated broker of Roesinger LLC, an Austin commercial real estate brokerage focused on flex-industrial, industrial outdoor storage, land, and investment sales across the Texas Triangle. He also buys value-add flex-industrial property as a principal, so the underwriting in these guides is the same screen he runs on his own acquisitions.
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