The Side-by-Side Comparison
| Characteristic | Small Bay Industrial | Large Bay Industrial |
|---|---|---|
| Typical Unit Size | 1,000 – 5,000 sq ft per unit | 50,000 – 1,000,000+ sq ft (single tenant) |
| Clear Height | 12 – 18 feet | 28 – 40+ feet |
| Loading Type | Grade-level overhead doors | Dock-high loading (4+ ft above grade) |
| Number of Tenants | Many (6 – 40+ per building) | One or two |
| Tenant Type | Small businesses, contractors, trade businesses, light mfg | Distributors, large manufacturers, e-commerce fulfillment |
| Lease Term | 1 – 5 years typical | 5 – 20+ years typical |
| Tenant Credit | Small business owners; personal guarantee | Corporate credit; often investment-grade |
| Building Size | 10,000 – 100,000 sq ft total | 100,000 – 1,000,000+ sq ft |
| Hard Cost/Sq Ft | $80 – $140/sq ft (varies) | $60 – $120/sq ft (lower per sq ft, but much larger projects) |
| Site Requirements | 2 – 10 acres; infill-compatible | 20 – 200+ acres; highway-adjacent logistics corridors |
| Management Intensity | High (many tenants, active mgmt) | Low (1–2 tenants, triple net leases) |
| Institutional Buyer Pool | Limited (private, regional operators) | Deep (REITs, pension funds, sovereign wealth) |
| Going-In Cap Rate | Higher (management intensity premium) | Lower (credit quality, institutional liquidity) |
| Vacancy Risk | Low per-unit; distributed across many tenants | High, one vacancy = 100% vacancy |
| Development Timeline | 12 – 24 months | 18 – 36+ months |
Physical Differences
The most obvious difference between small bay and large bay industrial is scale. A typical large bay distribution center is a single massive box: 300,000+ square feet under one roof, accessed by dozens of loading docks arranged around the perimeter, with 30–40 feet of clear height to allow racking systems to store pallet goods 4–6 levels high. The site may require 50–200 acres to accommodate truck staging, trailer parking, and employee parking.
Small bay is the opposite in almost every dimension. Buildings are smaller (10,000–80,000 square feet), sites are smaller (2–10 acres), and loading is grade-level rather than dock-high. Units are sized for trucks and vans, not semis. Clear heights are designed for one-story vertical storage or a mezzanine, not industrial racking systems. The design philosophy is functional simplicity for the small business operator, not logistics optimization for supply chain efficiency.
Tenant Differences
Large bay industrial tenants are corporations: Amazon, FedEx, tier-one auto suppliers, regional distributors, third-party logistics companies. These tenants have legal departments, sophisticated financial structures, and the ability to negotiate complex leases with carefully defined terms. Their credit is understandable, often publicly traded or backed by private equity, and their leases are clean, long-term, and often with built-in escalations.
Small bay tenants are small business owners. Their credit is personal and informal, verified through bank statements, tax returns, and business history rather than DUNS scores and audited financials. Their leases are shorter. Their businesses are local and relationship-driven. The risk profile is fundamentally different, and requires a different underwriting approach.
What small bay tenants offer in return for less institutional credit quality is high switching cost and sticky occupancy. A trade business that has been operating from a location for five years isn't going anywhere to save $200 a month in rent. The psychological and logistical cost of moving outweighs the financial savings in almost every scenario. This produces the persistently low vacancy rates that define well-operated small bay properties.
Development Differences
Large bay industrial development is simpler in execution than small bay, at least at the building level: one building, one or two tenants pre-leased before construction begins (spec is risky in big bay), one set of construction documents, one general contractor. The complexity is at the financing level, deals are massive, requiring institutional equity and debt that is unavailable to smaller developers.
Small bay development is more complex at the unit and tenant level: design for 15–25 individual units with individual utilities, individual entry points, individual doors, and individual lease negotiations. But the project size is accessible to regional developers and local capital partners who can structure the deal without institutional backing. The entry point is lower, and the expertise required is different, more about leasing and management than logistics optimization.
From a timing perspective, large bay development often requires pre-leasing before a construction loan will fund, lenders want to see the anchor tenant committed before they put money at risk. Small bay can often be developed on a speculative basis in markets with strong demand, because the risk is distributed across many tenants and the lease-up timeline is generally shorter. If one unit doesn't lease, 19 others are still paying rent.
Investment Return Differences
Large bay industrial trades at tight cap rates because institutional investors compete for it and the tenants are creditworthy. A Class A distribution center on a long-term Amazon lease might trade at a 4–5% cap rate in a major logistics corridor, meaning buyers are paying 20x NOI for near-certainty of income.
Small bay industrial trades at higher cap rates, typically 6–8%+ in secondary markets, because the buyer pool is smaller, the management is more intensive, and the income is less "institutional." This higher cap rate means higher going-in cash yield for investors and also reflects genuine execution risk that requires active, competent management to mitigate.
The question is which risk-return profile is right for the investor's situation. For investors who want creditworthy passive income and don't care about yield, large bay institutional product makes sense. For investors who want higher yields, are comfortable with a competent operator managing execution, and prefer the distributed vacancy risk of many small tenants over the binary risk of one large tenant, small bay offers a compelling alternative.
Why Dymaxion Focuses on Small Bay
Dymaxion is a small bay specialist because we believe the return profile and the competitive dynamics are superior in secondary markets. Large institutional capital cannot effectively operate small bay in secondary markets, it's too small to move the needle for a billion-dollar fund, and the management intensity doesn't fit the passive investment mandate. This leaves the field open for regional operators who are willing to do the work.
We also believe that the structural demand for small bay, driven by local trade businesses that cannot be offshored or disrupted digitally, is more durable than the demand for big-bay distribution, which faces the risk of supply chain reshoring, automation, and geographic consolidation. The plumber who needs a bay in Lansing needs it regardless of what Amazon does with its warehouse network.