SBA 504 vs CMBS Conduit — Which Loan Fits Your Commercial Property?

The Side-By-Side

| Metric | SBA 504 | CMBS Conduit | |---|---|---| | Min loan size | $250K | $2M (best execution $5M+) | | Max loan size | ~$20M total project (CDC piece capped ~$5.5M) | $50M+ (SASB available $150M+) | | Max LTV | 90% (10% sponsor equity) | 65–75% | | Term | 25-year (CDC) / 5–10 year (bank first) | 10-year fixed standard | | Amortization | 25-year | 25–30 year (1–5 yr IO common) | | Rate (April 2026) | Blended 8.5–9.5% | 6.0–8.0% | | Recourse | Full personal guarantee | Non-recourse with bad-boy carve-outs | | Owner-occupancy | 51%+ required | Not required (passive OK) | | Borrower entity | Operating company + property holding LLC | SPE (Single-Purpose Entity) | | Property condition | Owner-occupiable | Stabilized C4 or better, 90%+ occupancy | | Cash-out at refi | Heavily restricted | 75% LTV cash-out standard | | Prepay flexibility | 10-year declining prepay (CDC) | Defeasance or yield maintenance | | Close timeline | 90–120 days | 60–90 days | | Best fit | Owner-operator acquisition, lowest equity | Stabilized investor / passive scaling |

When SBA 504 Wins

SBA 504 is structurally better when the deal meets these conditions:

**1. Owner-operator acquisition with 51%+ occupancy.** You're acquiring real estate for a business you actively run. SBA 504's owner-occupancy framework is purpose-built for this. CMBS doesn't fit — it requires stabilized investor cash flow.

**2. Equity-constrained sponsor.** You have 10% but not 25–35%. SBA 504's 90% LTV is the lowest equity injection available in U.S. CRE for commercial properties. The 40% CDC second lien is a public-policy subsidy you're entitled to use.

**3. Smaller deal size $1M–$10M.** CMBS conduits are economically inefficient below $5M due to legal + rating-agency costs of securitization. SBA 504 has no minimum that matters at this band.

**4. Long-term hold horizon (10+ years).** SBA 504's 25-year fixed CDC rate locks in payment certainty for the entire life of the building. CMBS gives you 10 years; you face refinance risk at year 10. For long-term owner-operators, the 25-year fixed wins.

**5. Prepayment certainty needed.** SBA 504 has a 10-year declining prepay (10%, 9%, 8%... down to 1% in years 1–10, then free). CMBS uses defeasance which is harder to model + can be expensive in low-rate environments.

When CMBS Conduit Wins

CMBS conduit is structurally better when the deal meets these conditions:

**1. Stabilized commercial $5M+ with passive ownership.** Property is fully leased, owner is investor not operator, deal qualifies on debt yield + DSCR + LTV. CMBS's economics work at this scale.

**2. Sponsor wants to remove personal guarantee.** Once the portfolio scales beyond a few properties, recourse on every loan becomes a contagion risk. CMBS's non-recourse + bad-boy carve-out structure contains property-level risk.

**3. Property has drifted below 51% owner-occupancy.** Owner-business expanded + added tenants — building no longer meets SBA's owner-occupancy framework. Graduation to CMBS becomes the path forward.

**4. Cash-out for next acquisition.** CMBS allows 75% LTV cash-out at refi. SBA 504 cash-out is heavily restricted with strict use-of-proceeds requirements.

**5. 10-year hold + sale strategy.** Buyer plans to sell in 5–7 years. CMBS's 10-year fixed term plus assumable structure makes the property more saleable to the next institutional buyer. SBA 504's bank-first piece often requires acceleration on transfer.

**6. Sponsor outside SBA underwriting overlays.** Heavy 1099 / Schedule C income, complex multi-entity structure, recent credit event. CMBS underwrites the property cash flow, not the sponsor DTI.

The SBA-to-CMBS Graduation Path

Most institutional sponsors who started with SBA 504 eventually graduate to CMBS. The typical 3–7 year journey:

**Year 1**: Acquire owner-occupied real estate via SBA 504 — 10% down, 90% LTV across bank first + CDC second + sponsor equity. Operate the business from the building. Personal guarantee in place.

**Year 2–3**: Business grows. Add tenants in unused square footage. Cash flow stabilizes. Property might still be majority owner-occupied, but the trend is toward more tenants.

**Year 4–5**: Building drifts below 51% owner-occupied. SBA covenant compliance becomes a question. Sponsor wants out of personal guarantee + wants cash-out for next acquisition.

**Year 5–7**: Pre-clear the CMBS conduit takeout. Confirm property is stabilized at 90%+ occupancy with 1.25x+ DSCR. Confirm SBA 504 prepay window is favorable (typically year 4+). Submit complete CMBS file. 60–90 day close.

**Post-graduation**: Property is now on 10-year fixed CMBS. Personal guarantees removed. Cash-out funds next acquisition (often another SBA 504 deal — repeat the cycle on the next building).

This is how institutional CRE portfolios get built. SBA 504 is the on-ramp; CMBS conduit is the highway.

Where Sponsors Get Stuck

Three common stuck points in the SBA-to-CMBS journey:

**1. Property never fully stabilizes.** Tenant turnover, market shift, or business challenges keep occupancy below 90%. Without stabilization, CMBS doesn't qualify. The fix: lease-up bridge debt to push occupancy + NOI to CMBS-eligible levels, then refi.

**2. SBA prepay penalty too high.** First 3 years of SBA 504 carry significant prepay penalties. Sponsor needs to wait or accept the penalty as a cost of graduation.

**3. Loan size below CMBS economics.** Property scales, but combined SBA 504 balance is $1M–$3M. CMBS conduit isn't economic at this size. The path: continue holding SBA debt, or refi into a non-CMBS commercial bank loan that offers better terms than 504 (rate-and-term refi only).

PeerSense maps both the CMBS path and the bank-loan path for sponsors graduating out of SBA, and routes to whichever fits the actual deal economics.

What PeerSense Does

PeerSense routes commercial real estate deals to whichever structure fits the specific sponsor + property + business plan. SBA 504 for owner-operator acquisitions. CMBS conduit for stabilized portfolio scaling. We pre-clear both paths in parallel on borderline deals — sometimes a sponsor thinks they need SBA but actually qualifies for CMBS at lower blended cost; sometimes the opposite.

PeerSense earns a fee at closing only — no retainers, no application fees, no upfront cost. Fee is established upfront in the engagement agreement.

If you're currently on SBA 504 and your property has stabilized + drifted toward CMBS-eligible structure, share the deal facts in the form below. PeerSense will return a graduation analysis + indicative CMBS pricing within one business day.