Small Bay Industrial & Flex Space: The Cincinnati FAQ

What's the difference between flex space and small bay industrial?

Flex space and small bay industrial often occupy the same physical buildings but are optimized for different things. Flex space is built for adaptability, with a higher office ratio (roughly 10% up to 50% or more) and finished interiors for a mixed tenant base. Small bay industrial is built for operational efficiency, with a leaner office component (typically 5% to 10%) aimed at trades, logistics, and light manufacturing.

The two terms get used interchangeably in listings and conversation because the underlying shell (a single-story building with roll-up doors and a mix of warehouse and office space) is often identical. What changes is the finish level and the tenant profile a landlord is chasing.

Source: FlexSpace Nation, "Flex Space vs. Small Bay Industrial: What's the Difference?"

What is a flex office warehouse?

A flex office warehouse is a multi-tenant industrial building where each unit combines warehouse space with a finished office component, all under one roof alongside similar units. The office ratio varies by operator, from as lean as 5% to 10% up to more office-forward configurations.

Locally, Trowbridge Development markets its Cincinnati buildings as "Flex Office Warehouses." Each is roughly 12,000 SF, split into eight 1,500 SF units with office under 10% of each. That's the lean end of flex.

Source: Trowbridge Development, trowbridgedevelopment.com, accessed Aug 2026.

What is flex industrial space?

Flex industrial is one of several names used for the same underlying product as small bay industrial and flex office warehouse. Depending on the market and the broker, you'll hear flex industrial, small bay light industrial, and multi-tenant industrial used to describe the same style of building. The terminology hasn't fully standardized across the industry, which is part of why this page exists.

Source: Warehouse Anywhere, "What Is Small Bay Industrial?"

Is a contractor garage the same thing as small bay industrial?

A contractor garage is the smallest end of small bay industrial. It's a bare-shell, unheated bay of roughly 750 to 1,500 square feet, sized for a truck and trailer, with no office buildout and only sometimes a half-bath. It's a category of industrial real estate, not a company that builds residential garages. See the contractor garages in Cincinnati page for specs and local comps.

What is multi-tenant industrial?

Multi-tenant industrial is the broadest of these terms. It means any industrial building leased to more than one tenant, from small bay projects with 1,000 square foot units up to large distribution buildings split among a handful of major tenants. Small bay industrial is the most common form multi-tenant industrial takes in Cincinnati's core suburban submarkets.

What size is a typical small bay warehouse unit?

Individual small bay units generally range from 750 to 1,500 square feet at the lean, bare-shell end up to 5,000 to 10,000 square feet at the flex or light-industrial end. A full small-bay building or development typically totals between 12,000 and 200,000 square feet, split into anywhere from a handful to 200 units. This site focuses on buildings up to about 50,000 SF.

Source: Trowbridge Development building specs; BKM Capital Partners, "Scaling Success," 1Q2024 white paper.

How much office space is included in a flex or small bay industrial unit?

Small bay industrial units typically run 5% to 10% office. Flex space units run higher, anywhere from 10% up to 50% or more, depending on the operator and the tenant mix a project targets.

Cincinnati's small-bay space tends toward the lean end. Trowbridge, for one, keeps office under 10% of each unit.

Source: FlexSpace Nation; WareCRE, Small Bay Industrial Guide.

What kind of tenants lease small bay and flex industrial space?

The most common tenants are trade contractors such as HVAC, plumbing, electrical, and landscaping businesses, light manufacturers and assemblers, e-commerce and last-mile delivery operators, auto repair and detailing shops, and small distribution or logistics firms. For an owner, that mix spreads risk across many small leases, so losing one tenant doesn't empty the building.

Is small bay industrial a good investment in Cincinnati?

Demand is strong, and costs are rising. Metro industrial vacancy fell to 4.1% in Q3 2026 with 4.03 million SF of positive absorption, and asking rates rose to $6.62 per square foot per year. Ohio industrial land averages $52,357 per acre, less than half the national average of $117,951 per acre. But construction and capital costs are rising. That makes new development harder to pencil and pushes cap rates up. In my view, it favors buying existing buildings over building new right now.

Sources: Colliers, Cincinnati Industrial Market Report, Q3 2026; Newmark, "Land Scarcity and the Increase in Industrial Land Prices Throughout Ohio."

Which Cincinnati submarkets have the most small bay industrial and flex space?

The tightest activity is currently in West Chester, Liberty Township, Mason, and Fairfield on the Butler and Warren County side, and in Queensgate, Blue Ash, Sharonville, and Evendale on the Hamilton County side. Each submarket has a different tenant profile and access pattern. See the submarket-by-submarket guide for details on each.

What's the difference between a Modified Gross lease and a NNN lease?

In a NNN (triple net) lease, the tenant pays base rent plus property taxes, insurance and common area maintenance, so the landlord's income is "net" of those costs. In a Modified Gross lease, base rent runs somewhat higher and covers some or all of those operating expenses. Landlord and tenant negotiate the exact split. They often use a base-year expense stop to protect the landlord from expense growth in later years.

NNN shifts expense risk to tenants and is more common in single-tenant or larger investment-grade deals. Modified Gross is more common in multi-tenant small-bay buildings. It's simpler for smaller trade tenants who don't want a separate NNN reconciliation each year, though the landlord carries more expense risk inside the base rent. Some small-bay landlords do lease on NNN terms, and moving a building from gross to NNN leases can add real value for a buyer. Lease structure is worth reviewing on any acquisition.

Source: Holland & Knight, "Who Pays for What? Understanding Key Differences in Triple Net, Gross and Modified Gross Commercial Leases," March 2026.

What is cost segregation and does it apply to small-bay industrial?

Cost segregation is a study that splits a building's cost among land improvements, certain building systems and the structure itself, for depreciation purposes. Components with shorter depreciable lives can sometimes be depreciated faster than the building as a whole, which is the general appeal of the study.

This can apply to small-bay industrial and contractor garage buildings, but whether it makes sense, and what the actual benefit would be, depends entirely on your specific tax situation, how long you plan to hold the property, and your basis. This is general information. I'm not a tax advisor, so talk to your own CPA about whether a cost segregation study is worth commissioning for a specific purchase.

Source: IRS, Cost Segregation Audit Techniques Guide (Publication 5653), irs.gov.

What is a 1031 exchange and how does it work with small-bay property?

A 1031 exchange lets an owner defer capital gains tax on the sale of business or investment real estate by reinvesting the proceeds into like-kind replacement property, under rules in IRC Section 1031. Real estate is broadly like-kind to other real estate, so a small-bay building can generally be exchanged for another small-bay building, a different industrial property, or another qualifying investment property type.

The deadlines are strict and can't be extended. You generally have 45 days from closing on the sold property to formally identify replacement property in writing, and the exchange must close within 180 days of that sale. The transaction has to run through a qualified intermediary. If you take control of the sale proceeds yourself, the exchange is disqualified.

This covers how the mechanism works in general. It isn't tax advice for your situation, so talk to your CPA or a qualified intermediary before relying on 1031 treatment for a transaction.

Sources: IRS, "Like-kind exchanges - Real estate tax tips," irs.gov, reviewed May 2026; IRS, "Like-Kind Exchanges Under IRC Section 1031" (FS-2008-18).