The thesis in five doors
A different industrial operating system
Small-bay is not simply a smaller warehouse. The tenant mix, physical requirements, lease cadence, supply economics, and management burden all work differently.
BAY 01
Demand is local
Contractors, distributors, repair businesses, manufacturers, and fulfillment operators need practical space near the people and firms they serve.
BAY 02
Supply is difficult
Smaller units carry more doors, walls, utilities, parking demands, tenant improvements, and management per square foot.
BAY 03
Utility beats polish
Loading, power, parking, yard access, circulation, zoning, and location usually matter more than a pristine façade.
BAY 04
Operations create value
Shorter leases and many tenants create work—but also more chances to improve service, renewals, pricing, and space configuration.
BAY 05
Selection still matters
Scarcity does not rescue obsolete layouts, weak access, over-rented rolls, environmental problems, or a poor basis.
Definition before underwriting
What counts as small-bay?
There is no universal boundary. The useful definition starts with how the space functions, then uses size to organize the search—not to substitute for diligence.
SpanVor discovery universe
Industrial properties under 200,000 square feet, subject to known-size coverage and record-quality controls. A strategy may narrow to much smaller buildings or suites.
Micro-bay
often below 5,000 SF per unit
Small / shallow bay
commonly below 50,000 SF
Light industrial / flex
office, showroom, lab, service, or production mix
Multi-tenant industrial
one building or park divided into multiple suites
SpanVor discovery line
known building area below 200,000 SF
The split market
One headline. Two supply stories.
Broad industrial statistics are heavily influenced by large logistics facilities. Smaller infill buildings face a different supply equation: more complicated construction, expensive close-in land, constrained zoning, and a tenant base that values proximity and utility over scale.
<0.3%
of total industrial stock was represented by sub-100,000-SF space under construction in late 2025
CREDA / NAIOP, Spring 20264.9%
vacancy for industrial buildings below 100,000 SF in Q4 2025—about half the rate for larger facilities
BKM Capital Partners, Q1 202680%+
of shallow-bay inventory was built before 2000, while only 5% was built since 2010
CBRE, March 2026Third-party figures use different size definitions. They are shown with their original scope and should not be combined into one market estimate.
Why demand persists
Local business infrastructure
A growing company often needs a loading door, power, parking, storage, and a legal place to work long before it needs a distribution center. That requirement is hard to satisfy in office, retail, self-storage, or a home garage.
The space supports the daily mechanics of a metro: installing mechanical systems, repairing equipment, distributing parts, building interiors, staging crews, making products, and fulfilling orders. Its demand is connected to rooftops, business formation, maintenance, construction, and local consumption—not only to national freight volumes.
That does not make every tenant defensive. It makes the rent roll more granular. The underwriting advantage appears only when tenant quality, rollover, collections, improvements, and concentration are managed actively.
Read: Who rents small-bay industrial?The practical tenant brief
- Receive
- Grade-level or dock-high access, an approach that works, and delivery windows without conflict.
- Work
- Power, clear working area, ventilation, fire protection, utilities, and permitted use.
- Stage
- Tools, parts, materials, inventory, vehicles, and sometimes a secured yard.
- Dispatch
- Fast access to customers, job sites, labor, arterials, and the wider metro.
- Adapt
- A bay that can expand, contract, or be re-demised without destroying its loading and circulation.
Walk the building like an operator
Six checks before the spreadsheet wins
Small-bay value lives in physical details. A rent roll can be improved; a site that cannot load, park, power, drain, or legally support the next tenant is a much harder problem.
01 / ACCESS
Can the tenant actually get in and out?
Inspect turning radius, truck conflicts, curb cuts, dock or grade access, delivery paths, and peak-hour traffic—not just distance to a highway.
02 / POWER
Can the building support the work?
Document service size, voltage, phase, panel condition, utility upgrade history, and the cost and timing of any required expansion.
03 / PARKING
Where do employees, fleets, and customers go?
Count usable stalls and outdoor positions by suite. Shared parking can become a leasing constraint long before it looks full during a tour.
04 / LOADING
Does every suite have the door it needs?
Verify door dimensions, clear approach, dock equipment, grade changes, column conflicts, and whether a demising plan preserves functional loading.
05 / ZONING
Is today’s use legal—and is tomorrow’s likely use?
Confirm permitted uses, outdoor storage, automotive restrictions, hazardous materials, signage, hours, and whether legal nonconforming status can survive vacancy.
06 / CAPEX
What will age make you pay for?
Separate cosmetic work from roofs, paving, drainage, electrical, fire protection, HVAC, sewer, structure, environmental, and accessibility exposure.
Underwriting discipline
Scarcity is a starting point, not a conclusion
A supply-constrained sector can still produce a bad investment. The decision has to survive the lease file, the site plan, the capital plan, and the downside case.
- 01
Define the exact tenant market
Map competing suites by size, loading, power, parking, yard, zoning, and drive time. Do not use a metro vacancy rate as a substitute.
- 02
Rebuild the rent roll
Verify rent, reimbursements, options, deposits, delinquency, concessions, improvements, guaranties, uses, and every critical date from source documents.
- 03
Price functional downtime
Model the real path from move-out to rent: cleanout, repairs, permitting, utility work, brokerage, improvements, free rent, and the time required for a small tenant to occupy.
- 04
Separate deferred maintenance from value-add
A roof, failed pavement, undersized service, drainage defect, or environmental condition is not an operating strategy. It is a liability until scoped and priced.
- 05
Stress the operating burden
Test slower collections, more turnover, insurance, taxes, repairs, tenant coordination, and management staffing. Granularity diversifies income but multiplies touchpoints.
- 06
Protect the exit
Ask who can buy the asset, what financing they can obtain, and whether the property’s utility survives changes in tenant mix, code, insurance, and nearby land use.
Plain answers
Small-bay industrial FAQ
What is small-bay industrial real estate?
Small-bay industrial is the smaller-unit end of the industrial market: micro-bay, shallow-bay, multi-tenant warehouse, light industrial, flex, workshop, and service-oriented industrial space. SpanVor uses an under-200,000-square-foot property universe for discovery, then narrows by building and suite characteristics when underwriting a specific strategy.
How is small-bay different from big-box logistics?
Big-box logistics is usually designed for large-scale distribution, long leases, and a small number of major occupiers. Small-bay serves more local and regional users in smaller spaces, with more lease events, more varied physical requirements, and a more hands-on operating model.
Why is new small-bay supply limited?
The economics are difficult. Smaller suites require more walls, doors, utilities, office buildout, parking, and management. Infill land and industrial zoning are also scarce. Developers can often spread fixed costs more efficiently across a larger building.
What makes a strong small-bay property?
A strong property combines durable location with functional loading, adequate power, useful clear height, workable parking and circulation, flexible suite sizes, legal industrial use, and a capital plan that reflects the building’s real age and condition.
What is the biggest underwriting mistake?
Treating all industrial square footage as interchangeable. A building can look inexpensive while being functionally obsolete, difficult to divide, underpowered, poorly parked, environmentally impaired, or too far from the customers and labor its tenants serve.
Who rents small-bay industrial space?
The tenant base commonly includes contractors, service trades, local and regional distributors, repair businesses, light manufacturers, e-commerce operators, building suppliers, and specialized production users. SpanVor’s separate evidence note explains what the current tenant data can—and cannot—measure responsibly.
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