How Can Real Estate Investors Build Wealth With Small-Bay Industrial Real Estate in 2025?
The industrial real estate market has quietly become one of the strongest-performing asset classes in the United States. While many investors chase multifamily or self-storage, experienced operators are increasingly focusing on small-bay industrial properties—especially older warehouse and flex-space buildings in supply-constrained markets like Chicago.
In this episode of The Real Estate Investing Club Podcast, host Gabe Petersen interviewed Mark Ainley about why industrial real estate is becoming one of the best long-term opportunities for investors—and how small operators can still compete.
Small-bay industrial real estate offers investors strong cash flow, rising demand, limited new supply, and flexible tenant use cases. Investors can buy older industrial buildings below replacement cost, increase rents through smaller unit configurations, and benefit from growing demand from contractors, gyms, e-commerce businesses, logistics companies, and service-based tenants.
Why Are Investors Bullish on Small-Bay Industrial Real Estate?
Small-bay industrial properties are benefiting from rising demand and shrinking supply. Older warehouse buildings are increasingly difficult to replace due to zoning restrictions, construction costs, and redevelopment pressures.
According to Mark Ainley:
“You can buy them for $90 to $100 a square foot. You can’t build these buildings anymore for less than $250 a square foot.”
That replacement-cost gap is one of the biggest reasons investors are aggressively acquiring industrial properties.
Unlike massive distribution centers owned by institutional investors, smaller industrial spaces between 3,000 and 6,500 square feet serve local businesses that still need affordable operational space close to urban centers.
Typical tenants include:
- Plumbers
- HVAC companies
- Sign manufacturers
- Gyms
- Veterinarians
- Small logistics operators
- E-commerce businesses
- Breweries
- Contractors
This creates diversified tenant demand that is difficult to replicate.
For broader market context, CBRE Industrial Market Research and JLL Industrial Outlook Reports both continue tracking long-term industrial demand growth tied to logistics, data infrastructure, and supply-chain reshoring.
What Makes Small-Bay Industrial Different From Traditional Commercial Real Estate?
Small-bay industrial combines operational simplicity with flexible tenant demand, making it more resilient than many retail or office properties.
During the interview, Mark explained:
“Commercial property management is so much easier. It’s Monday through Friday and no domestic violence.”
That humorous quote highlights an important reality: industrial tenants often create fewer management headaches than residential tenants.
Key advantages include:
| Feature | Small-Bay Industrial | Multifamily |
|---|---|---|
| Tenant turnover | Lower | Higher |
| Maintenance intensity | Moderate | High |
| Lease structure | Often modified gross or NNN | Gross |
| Operational hours | Business hours | 24/7 |
| Tenant complaints | Lower | Higher |
| Property wear | Usually lower | Higher |
Many industrial leases also include:
- Modified gross structures
- Triple-net (NNN) leases
- Tax pass-throughs
- Insurance reimbursement clauses
These structures help stabilize operating expenses.
Mark described how his company often structures leases:
“We’ll have maybe a tax stop and an insurance stop… if it goes above that, then they’re responsible for anything above that.”
This protects owners against unpredictable expense increases while still offering tenants stable monthly payments.
For investors interested in alternative commercial strategies, readers may also enjoy:
Why Is Industrial Demand Growing So Fast in Markets Like Chicago?
Industrial demand is growing because businesses increasingly prioritize logistics efficiency, operational flexibility, and lower occupancy costs compared to traditional retail space.
Mark highlighted a major shift happening across many U.S. markets:
“Retail has really died a lot here… businesses are moving into industrial space.”
Instead of paying premium retail rents, many businesses now operate from functional industrial units.
Examples include:
- CrossFit gyms
- Veterinary clinics
- Breweries
- Sign shops
- E-commerce operators
These tenants no longer rely on walk-in traffic.
Instead, they prioritize:
- Parking
- Lower rent
- Storage
- Delivery access
- Operational efficiency
The economics are compelling.
A retail tenant paying $22 per square foot may relocate to industrial space at $10–13 per square foot while maintaining the same customer reach through online marketing.
Mark also emphasized Chicago’s transportation dominance:
“Some crazy like 80% of truck traffic flows through here.”
The Chicago Metropolitan Agency for Planning and The Federal Highway Administration Freight Analysis Framework both highlight Chicago’s role as one of the nation’s largest freight and rail hubs.
That logistics infrastructure supports long-term industrial demand.
How Do Investors Find Good Industrial Deals Today?
Industrial deals are increasingly sourced through relationships, direct outreach, and networking rather than traditional MLS listings.
According to Mark:
“Networking is the answer.”
His company sources deals through:
- Property management relationships
- Brokers
- Direct mail campaigns
- Bank relationships
- Wholesalers
- Off-market outreach
Interestingly, some of their best acquisitions came from managing properties for aging owners who eventually wanted to sell.
Mark explained:
“We were first in line.”
He also revealed that direct mail campaigns are now generating industrial opportunities:
“The last couple buildings we bought were through mailers.”
That strategy surprises many investors because direct mail is commonly associated with residential investing—not industrial acquisitions.
However, smaller industrial owners are often:
- Older operators
- Less institutional
- Long-term holders
- Under-marketed
- Open to relationship-driven sales
For investors building acquisition pipelines, these resources may help:
What Should Investors Look for When Underwriting Industrial Properties?
Successful industrial underwriting focuses on location, functional utility, outdoor storage potential, zoning stability, and replacement-cost economics.
Mark’s company targets:
- Buildings under 50,000 square feet
- Older industrial inventory
- 12–14 foot clear heights
- Expandable sites
- Outdoor storage opportunities
- Truck parking potential
One overlooked opportunity is semi-truck parking.
Mark noted:
“You can charge $250 to $450 for a semi parking spot.”
Even a few extra parking spaces can meaningfully improve NOI.
Other underwriting priorities include:
- Highway access
- Freight corridors
- Functional layouts
- Loading access
- Flexible tenant adaptability
- Municipal tax predictability
Interestingly, Mark avoids Cook County because of volatile property taxes.
Instead, he prefers DuPage County:
“It’s one of those little sleeper areas that a lot of people aren’t paying attention to.”
That insight reflects an important investing principle: stable governance and predictable taxes often matter more than headline cap rates.
For additional industrial underwriting guidance:
What Risks Should Investors Understand Before Buying Industrial Real Estate?
Industrial investing still carries risks, especially around taxes, redevelopment, tenant concentration, and poor due diligence.
One of Mark’s biggest lessons came from a failed residential investment:
“The entire roof was gone.”
He admitted that rushing through inspections led to major losses.
That experience reinforced several key rules:
- Never skip due diligence
- Verify building condition thoroughly
- Understand municipal regulations
- Avoid emotional decision-making
- Know when to cut losses
Industrial investors must also monitor:
- Property tax reassessments
- Environmental issues
- Functional obsolescence
- Zoning changes
- Redevelopment risk
For example, industrial buildings near growing urban areas may eventually become redevelopment targets for data centers or large logistics facilities.
Ironically, that risk can sometimes become a major upside.
Mark described one industrial property that was later purchased by a developer building a large industrial complex:
“The price we got was about three times what we paid.”
That deal became one of their largest wins.
How Is AI Changing Real Estate Investing and Property Management?
AI is rapidly improving operational efficiency, marketing, maintenance coordination, and investor communication within real estate businesses.
Mark discussed how his company is already implementing AI throughout operations:
“Automatically approving work orders… generating invoices… summarizing videos.”
He specifically highlighted tools like Claude AI for:
- Research
- Content summaries
- Workflow automation
- Decision support
- Coding assistance
AI applications in real estate now include:
- Leasing automation
- Maintenance ticket routing
- CRM follow-up
- Marketing content
- Investor reporting
- Underwriting assistance
- Document review
Investors who adopt AI effectively may gain major operational advantages over slower-moving competitors.
For more on technology-driven investing:
Is Small-Bay Industrial Still a Good Investment in 2025?
Yes—many investors believe small-bay industrial remains one of the strongest long-term real estate opportunities because of supply constraints, flexible tenant demand, and rising replacement costs.
The sector benefits from several long-term trends:
- E-commerce growth
- Logistics expansion
- Business decentralization
- Retail consolidation
- Supply-chain reshoring
- Rising construction costs
- Limited new small-bay inventory
Unlike trendy asset classes that attract institutional overcompetition, smaller industrial properties often remain fragmented and relationship-driven.
That creates opportunities for operators willing to:
- Build local relationships
- Source off-market deals
- Improve functionality
- Re-tenant creatively
- Operate efficiently
As Mark summarized:
“There’s so much opportunity in there.”
Final Thoughts From The Real Estate Investing Club
Industrial real estate may not generate the same social media hype as multifamily syndications or luxury developments, but the fundamentals behind small-bay industrial remain incredibly strong.
For investors seeking:
- Durable cash flow
- Operational simplicity
- Strong tenant demand
- Long-term appreciation
- Flexible use cases
…small industrial properties deserve serious attention.
This episode with Mark Ainley offered a practical blueprint for how experienced operators are identifying opportunities before the broader market fully catches on.
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