Commercial Real Estate and Construction Loans for Small Businesses
- William Mingione
- 3 days ago
- 6 min read
Buying the building your business operates out of, or constructing one from the ground up, is one of the largest financial commitments a small business owner will make. It's also one of the most misunderstood corners of business financing, since the products, down payment requirements, and underwriting standards differ significantly from a standard term loan or working capital facility.
This guide breaks down how commercial real estate and construction financing actually works for small businesses in 2026.
Key Takeaways
The SBA 504 loan is the primary tool for small businesses buying or building owner-occupied commercial property, typically requiring just 10% down compared to 20-30%+ for conventional commercial mortgages.
SBA 504 loans are structured as two loans: a bank covers 50% of the project, a Certified Development Company backs 40%, and the borrower contributes 10%.
As of July 2026, qualified borrowers can combine SBA 504 and 7(a) financing for up to $10 million in total project financing.
Your business must occupy at least 51% of an existing building, or 60% of new construction, to qualify for 504 financing.
DirectLend.AIÂ matches documented businesses with active CRE and construction lenders, cutting through the extra complexity these deals usually involve.
Table of Contents
What Counts as Commercial Real Estate Financing?
Commercial real estate (CRE) financing covers loans used to purchase, construct, or substantially renovate property used for business operations, think office buildings, retail space, warehouses, or manufacturing facilities that your business owns and occupies, rather than leases. Construction loans are a specific subset used to fund ground-up building or major buildouts, often converting to permanent financing once construction is complete.
Ready to explore CRE or construction financing? Get matched with active lenders through DirectLend.AI.
This is distinct from investment real estate, where a business or individual buys property purely to lease out to others. Most of the favorable financing structures discussed here, particularly SBA 504, are reserved for owner-occupied properties, since the program exists to support operating small businesses, not passive real estate investment.
How the SBA 504 Loan Works
The SBA 504 loan program, formally known as the Certified Development Company (CDC) program, is specifically designed to help small businesses purchase or improve major fixed assets such as commercial real estate, equipment, and machinery. Unlike many other small business loans, the SBA 504 uses a two-loan structure: a private lender, typically a bank or credit union, covers 50% of the project cost, a Certified Development Company backed by the SBA provides 40%, and the business owner contributes a 10% down payment.
That structure is what makes 504 loans so attractive for real estate purchases specifically:
Feature | SBA 504 Loan |
Down payment | As low as 10% (15% for startups) |
Rate structure | Fixed rate on the CDC portion, roughly 5.5-7.5% as of 2026 |
Term | 10 years for equipment; 20 or 25 years for real estate |
Max SBA portion | $5 million ($5.5 million for manufacturers) |
Occupancy requirement | 51% of existing building; 60% of new construction |
Commercial real estate's lowest down payment requirement, as little as 10%, helps retain working capital inside the business rather than tying it all up in a building purchase, which is often the deciding factor for small businesses weighing 504 against a conventional commercial mortgage.
One significant 2026 development: as of July 4, 2026, qualified borrowers can access up to $10 million in combined SBA financing by pairing a 504 loan with a 7(a) loan. The individual 504 program cap of $5 million still applies, but businesses needing both long-term real estate financing and working capital may now be able to use both programs together in a single, coordinated financing package.
SBA 504 vs. Conventional Commercial Mortgages
Conventional commercial real estate financing typically requires 25-35% down payments and offers shorter loan terms with variable rates, a meaningful contrast to the SBA 504 structure. Here's how they compare directly:
Feature | SBA 504 | Conventional Commercial Mortgage |
Down payment | 10% (15% for startups) | 25-35% |
Rate type | Fixed | Often variable |
Term | Up to 25 years | Typically 5-20 years, often with a balloon payment |
Best for | Owner-occupied property, businesses preserving working capital | Businesses with strong existing banking relationships and larger cash reserves |
The tradeoff is complexity and timeline. A 504 loan involves coordinating a bank, a CDC, and the SBA, which typically takes longer to close than a conventional mortgage through a single lender. For businesses that can absorb a larger down payment and want a faster, simpler closing, conventional financing remains a reasonable option. For businesses prioritizing working capital preservation, 504 is usually the stronger choice.
Construction Loans: What's Different
Ground-up construction and major renovation projects add a layer of complexity beyond a standard property purchase. Construction financing is typically disbursed in stages, tied to inspection milestones, rather than as a single lump sum at closing. This protects the lender against a project stalling partway through, but it also means your documentation and reporting requirements continue throughout the build, not just at application.
Soft costs, including appraisals, environmental assessments, construction interest, and closing costs, can also be financed within an SBA 504 construction loan, which helps small businesses avoid depleting working capital during the build phase.
Once construction is complete, many construction loans convert into permanent, long-term financing (often the same SBA 504 structure discussed above), rather than requiring the business to refinance separately. Confirming whether your lender offers this conversion built in, versus requiring a separate refinance step, is worth clarifying before you sign.
DSCR and Underwriting for CRE Deals
Debt service coverage ratio plays an outsized role in commercial real estate underwriting specifically. DSCR is particularly central to commercial real estate lending, where it is often the primary underwriting metric, more so than in some other loan categories where credit history or collateral might carry comparably more weight.
For SBA 504 loans specifically, most lenders want to see a DSCR around 1.2 or higher, meaning your income comfortably exceeds your total debt service including the new real estate payment. Because CRE loans typically involve larger amounts and longer terms than a standard term loan, even a modest DSCR shortfall can meaningfully limit how much property you qualify to finance. For a deeper walkthrough of how DSCR is calculated and applied across loan types, see our guide on how lenders evaluate your business loan application.
Documentation You'll Need
CRE and construction financing generally requires more extensive documentation than a standard term loan, given the size and complexity of these deals:
2-3 years of business tax returns and financial statements
A property appraisal (and for construction, detailed project plans and cost estimates)
Proof of the required down payment/equity injection
Business debt schedule showing all existing obligations
For construction specifically, contractor agreements and a project timeline
For a broader overview of standard loan documentation, see what documents do you need to apply for a business loan. Given the scale of most CRE transactions, working with a lender experienced specifically in commercial real estate, rather than a generalist small business lender, often makes a meaningful difference in how smoothly your deal moves through underwriting.
Buying, building, or renovating commercial property? Contact DirectLend.AI to discuss your project.
FAQ
What's the minimum down payment for an SBA 504 commercial real estate loan?
The SBA 504 program has a down payment minimum of 10%, or 15% for startup businesses, significantly lower than the 25-35% typically required for conventional commercial mortgages.
Can I use SBA 504 financing for an investment property I don't occupy?
No. SBA 504 loans require your business to occupy at least 51% of an existing building or 60% of new construction. Passive real estate investment does not qualify.
How long does an SBA 504 loan take to close?
CRE financing generally takes longer than standard term loans due to the three-party structure (bank, CDC, and borrower) and required appraisals. Expect a longer timeline than a conventional term loan, and build that into your purchase or construction timeline.
Can I refinance existing commercial real estate debt with an SBA 504 loan?
Yes, under the SBA 504 Debt Refinancing Program, businesses can refinance existing qualified debt tied to owner-occupied commercial real estate, generally requiring that a substantial portion of the original loan's proceeds went toward eligible fixed asset purposes.
What happens if my construction project goes over budget?
This is exactly why lenders disburse construction funds in stages tied to inspections, and why soft costs are often built into the original loan amount. Discuss contingency planning with your lender before construction begins, since mid-project funding gaps are difficult to resolve after the fact.
Related Blogs
Sources
Crestmont Capital, "SBA 504 Loan Requirements: The Complete 2026 Guide for Business Owners," 2026
Nav, "SBA 504 Loan Requirements, Rates & Terms Guide," 2026 (confirming July 2026 combined $10M SBA financing cap)
SCED, "SBA 504 Loans" program overview, sced.org