CMBS Conduit vs Single-Borrower CMBS: Two Different CMBS Markets for Different Deal Sizes

When CMBS Conduit Loans Is the Right Call

CMBS conduit is the right execution for stabilized, income-producing commercial properties in the $5M to $50M range where the sponsor needs non-recourse, fixed-rate financing and the asset fits a defined credit box. The conduit market is competitive, liquid, and fast relative to single-borrower executions, with multiple lenders quoting the same deal simultaneously. The standardized document set is a feature, not a limitation, for sponsors who are not seeking structural customization.

• Stabilized retail, office, industrial, mixed-use, or hospitality asset in the $5M to $50M range where non-recourse fixed-rate is the primary objective
• Sponsor wants a programmatic, repeatable execution across a portfolio of mid-market properties without negotiating bespoke documents on each loan
• Deal fits the conduit credit box on LTV, DSCR, and debt yield without requiring structural carve-outs or partial release provisions
• Market has multiple conduit lenders competing for origination volume, driving pricing inside what a bank or debt fund would offer on a recourse basis
• Sponsor anticipates holding the loan to maturity or near maturity, making the standardized defeasance exit sufficient
• Property type is office, retail, or hospitality where agency and bank lenders are more constrained and conduit remains one of the few active fixed-rate non-recourse channels

How to Choose Between CMBS Conduit Loans and Single-Borrower CMBS Loans

The first filter is deal size. Conduit CMBS dominates the $5M to $50M range and is structurally unsuited to loans above $75M due to pool concentration limits. A single loan representing more than 10 to 15 percent of a conduit pool creates outsized B-piece exposure that most conduit buyers will reject or re-price aggressively. If your loan is above $75M, conduit is not a realistic option regardless of asset quality, and single-borrower is the execution to pursue. If your loan is below $50M, single-borrower CMBS is not a realistic option regardless of asset quality, because the economics of a single-asset securitization do not work at that size.

The second filter is asset quality. Single-borrower CMBS requires a trophy or Class A asset to attract a B-piece buyer willing to take deal-specific risk on a single credit. A B-piece buyer in a conduit pool is diversified across 50 to 100 loans; a B-piece buyer in a single-borrower deal is fully concentrated in one asset and one market. That concentration demands a high-quality, well-located, institutionally managed property. Conduit, by contrast, accepts a wider range of asset quality because individual loan risk is diluted across the pool. A well-occupied Class B retail strip center in a secondary market that clears the conduit credit box is a straightforward conduit deal but would not clear single-borrower underwriting.

The third filter is structural need. If your deal requires partial release provisions, heavily negotiated reserve structures, springing cash management tied to specific performance triggers, or carve-out language that departs from CREFC standards, conduit cannot deliver those terms. The conduit B-piece buyer reviews a pool of standardized loans and will not approve structural exceptions that would make one loan non-comparable to the others in the pool. Single-borrower CMBS allows direct negotiation with the B-piece buyer on every structural element because there are no other borrowers in the trust who would be affected. Sponsors who need structural flexibility and are above the $75M threshold should not attempt to force-fit their deal into conduit.

The fourth filter is timeline and execution certainty. Conduit closes in 60 to 90 days from application, driven by a relatively standardized origination and securitization process. Single-borrower CMBS closes in 90 to 150 days, with the additional time consumed by bespoke document negotiation, B-piece engagement, and deal-specific rating agency review. Sponsors with acquisition deadlines or refinance urgency should factor this into the channel decision before engaging. Running a single-borrower process without adequate time is one of the more common execution failures in large-balance CMBS, and the costs of a failed deal at that size, including legal fees, rate lock deposits, and extension penalties, are substantial.

The sponsors who over-complicate the channel decision are usually the ones who have heard that single-borrower CMBS prices better and assume that applies to their $30M deal. It does not. Single-borrower is a different product for a different market. At $30M you are competing against 50 other conduit loans for B-piece attention; at $200M you are the only loan in the trust. Those are fundamentally different risk conversations and they produce fundamentally different terms.