How do lenders underwrite imputed rent on owner-user CRE?

Imputed rent underwriting on owner-user conventional bank loans

Conventional bank methodology: the bank treats the owner-user property as if it were a third-party leased investment. The lease between the real-estate holding entity and the operating business is treated as the imputed rent at market levels. DSCR is computed: imputed market rent ÷ debt service must exceed the lender's DSCR floor (typically 1.20x-1.25x for owner-user real estate).

Why imputed rent: the conventional bank wants the loan to be serviceable even if the operating business fails or moves out. A third-party tenant should be able to backfill the space at market rent and the property cash flow alone should cover debt service. This protects the bank's collateral position.

Market rent determination: the bank's appraiser determines market rent based on comparable third-party leases in the submarket, adjusted for property quality, tenant credit, and lease terms. The actual operating-business rent paid (which may be above or below market) is not the underwriting basis.

SBA contrast: for SBA 504 and 7(a), the test is global cash flow. Add back rent paid to the real-estate entity, then divide by business debt service plus real-estate debt service. The SBA approach is more flexible because it captures the operating-business value, but it requires deeper diligence on the operating business.

Implication for sponsors: an operating business with strong cash flow but weak market-rent comparables may have trouble qualifying conventional. SBA execution may be the better path. Conversely, a property in a strong leasing market with a marginal operating business may execute easier conventional than SBA.

Cash-flow stress: conventional lenders may stress imputed rent (apply a market-rent vacancy assumption of 5%-10% or a stabilized-NOI haircut) to size to a stressed DSCR. The sponsor's perceived sizing capacity needs to factor in that stress.