What a Mixed-Use STR-Plus-Retail Property Needs From a Lender
A classic main-street building — retail on the ground floor, a short-term rental unit or two above it — is a common property type in walkable downtown markets, and a genuinely awkward one to finance. It's not purely residential and it's not purely commercial, and that ambiguity is exactly what a lender has to resolve before they can underwrite it.
NightYield Editorial
STR-DSCR research & underwriting desk
Published 2026-07-12
Why residential DSCR often doesn't apply cleanly
Standard residential DSCR products are generally built around 1-4 unit residential properties. Once a meaningful share of the building's square footage or income is commercial retail space, many residential DSCR lenders will decline the deal outright or reclassify it as a commercial transaction — which changes the loan program, the down payment expectations, and the underwriting process substantially.
The generic rule of thumb lenders use varies by institution, but the core question is always some version of: what percentage of the building's income and square footage comes from the residential STR unit versus the retail space? There's no universal cutoff percentage to quote here — it's lender-specific, so this is a confirm-before-you-shop situation, not a rule you can rely on across lenders.
What lenders actually ask for on mixed-use deals
| Underwriting item | Residential STR loan | Mixed-use property |
|---|---|---|
| Income basis | STR projected rent or booking history | Blended: STR income plus commercial lease income |
| Appraisal type | Residential comparable sales | Often requires commercial income-approach appraisal |
| Down payment | Standard DSCR range | Typically higher, commercial-adjacent |
| Lease documentation | Not usually required beyond STR platform data | Signed commercial lease terms matter directly |
The retail tenant's lease terms matter more than most first-time mixed-use buyers expect. A lender evaluating the commercial income portion wants to see lease length, tenant creditworthiness, and what happens to that income if the retail space goes vacant — because an empty storefront doesn't just cut income, it can also make the property harder to re-lease or resell.
The practical path forward
If the retail component is small relative to the STR unit, some residential DSCR lenders will still consider it, sometimes simply excluding the commercial income from the DSCR calculation entirely and qualifying on the residential rent alone — conservative, but simpler. If the retail share is significant, expect to be routed toward a commercial mixed-use loan product, which is a different conversation with different lenders than the DSCR shops focused on 1-4 unit residential.
Key takeaways
- Mixed-use STR-plus-retail properties often don't fit standard residential DSCR programs cleanly.
- The split between residential and commercial square footage/income determines which loan category applies — confirm the specific lender's threshold before assuming.
- Commercial retail leases need to be documented and evaluated on their own terms, separate from the STR income.
- Some lenders will finance the deal conservatively by excluding commercial income from the DSCR calculation rather than declining outright.