Commercial real estate financing is fundamentally different from residential mortgages — the underwriting standards, loan structures, lender types, and deal math all operate differently. Whether you're buying your business's building, purchasing investment property, or refinancing an existing note, understanding how CRE lenders think is the starting point for a successful transaction.
What Makes CRE Financing Different
With residential mortgages, lenders primarily evaluate the borrower: income, credit, debt-to-income ratio. With commercial real estate, the property's income-producing ability often matters as much as — or more than — the borrower's personal finances.
The key metric is Debt Service Coverage Ratio (DSCR): the property's net operating income (NOI) divided by annual debt service (principal + interest). A DSCR below 1.0 means the property can't cover its own loan payments. Most lenders require DSCR of at least 1.20–1.25.
→ Calculate DSCR for any commercial property
This distinction matters because a profitable business can be a compelling borrower even if the property itself has lower net income, and conversely, a strong property can sometimes carry a weaker sponsor.
CRE Loan Types
1. SBA 504 Loan — Best for Owner-Occupied Real Estate
The SBA 504 is the premier tool for small business owners buying their own commercial property. The structure involves three parties:
- Bank/conventional lender: Provides 50% of the project cost at market rate
- Certified Development Company (CDC): Provides 40% via SBA-backed debenture at a below-market fixed rate
- Borrower: Provides 10% down (vs. 20–30% for conventional CRE)
2026 SBA 504 debenture rates (fixed for the life of the loan):
- 10-year debenture: approximately 5.8%–6.2%
- 20-year debenture: approximately 6.0%–6.4%
- 25-year debenture: approximately 6.1%–6.5%
These below-market fixed rates on the 40% CDC portion bring the effective blended rate well below a conventional commercial mortgage.
Key 504 requirements:
- Business must occupy at least 51% of the property (60% for new construction)
- Business must create or retain one job per $100K of SBA financing (or meet community development goals)
- Maximum net worth: $20 million, after-tax income: $6.5 million (for eligibility)
- Property types: office, retail, warehouse, manufacturing, medical
Eligible costs: Purchase price, building improvements, equipment and machinery in the building, soft costs (appraisal, environmental, legal)
CDCs operate regionally. In the Pacific Northwest:
- Oregon: Oregon Business Development (OBD/EDLF), OBDF, Pacific Coast Regional Corporation
- Washington: Pacific Coast Regional Corporation, Cascadia Revolving Fund
- Idaho: Idaho-Eastern Oregon CDC
- Montana: Montana CDC, Big Sky Economic Development
2. SBA 7(a) for Real Estate
The 7(a) loan can be used for commercial real estate as well, with terms up to 25 years for real estate. Key differences from 504:
- Single-lender structure (simpler)
- Variable rate (tied to prime) vs. 504's fixed below-market rate
- More flexible use of proceeds (can blend real estate + working capital + equipment in one loan)
- Owner-occupancy still required for small business eligibility
For a 25-year CRE loan under 7(a), current rates run approximately 9.25%–10.25%, significantly higher than a 504's blended rate. The 7(a) makes more sense for smaller deals, mixed-use financing, or when simplicity is valued.
3. Conventional Commercial Mortgage
Traditional commercial mortgages from banks or commercial lenders don't carry a government guarantee, which means:
- Tighter underwriting requirements (DSCR ≥ 1.25, LTV ≤ 65–75%)
- Shorter amortization (typically 20–25 years) with balloon payment at 5, 7, or 10 years
- No occupancy requirement — investor properties are eligible
- Down payment of 20–35% typical
Best for: Experienced real estate investors, businesses with strong balance sheets, properties that don't meet SBA owner-occupancy tests.
4. DSCR Loans (Investor Properties)
For investment properties where the borrower doesn't intend to occupy, DSCR loans underwrite based purely on property cash flow — the borrower's personal income tax returns may not even be required.
How DSCR loans work:
- Lender evaluates property rent roll vs. proposed debt service
- DSCR ≥ 1.20–1.25 is the typical threshold
- LTV ≤ 70–75%
- Rates: typically prime +1.5% to +3%
Useful for self-employed investors, LLCs purchasing investment property, or any situation where personal income documentation is problematic.
→ Use the DSCR Calculator to check whether a property supports its own financing.
5. Bridge Loans
Bridge loans provide short-term financing (6–24 months) for situations that don't yet qualify for permanent financing: a value-add property under renovation, a recent acquisition before stabilization, or a property being repositioned.
Bridge loan characteristics:
- Interest-only payments during the bridge period
- Rates: prime +2% to +5% (or higher from non-bank bridge lenders)
- Higher LTV possible during construction/renovation (60–70% of as-stabilized value)
- Exit strategy required (sale or refinance into permanent financing)
6. Construction Loans
Ground-up construction financing operates on a draw schedule: the lender advances funds as construction milestones are completed. Once the building is stabilized (leased up or occupied), you refinance into permanent financing.
Construction loans require a general contractor, full plans and permits, a detailed budget and draw schedule, and often a guaranteed maximum price contract.
How Lenders Underwrite Commercial Real Estate
Net Operating Income (NOI)
NOI = Gross rental income − Vacancy allowance − Operating expenses (taxes, insurance, maintenance, management) − Reserves
It does not include debt service, depreciation, or capital expenditures.
Debt Service Coverage Ratio (DSCR)
DSCR = NOI ÷ Annual debt service
A DSCR of 1.20 means the property generates 20% more income than needed to service the debt. Most conventional lenders require 1.20–1.25 minimum; SBA programs typically require 1.15–1.25.
→ Calculate DSCR and see how lenders view your property
Loan-to-Value (LTV)
LTV = Loan amount ÷ Appraised value
Most CRE lenders cap LTV at 65–75% for investment properties and 75–80% for owner-occupied with government programs. The appraisal is ordered by the lender, not the borrower, and uses income capitalization approach for income properties.
Debt Yield
An increasingly common metric: Debt yield = NOI ÷ Loan amount. Lenders want to see 8%+ or higher. Unlike DSCR and LTV, debt yield doesn't depend on cap rate assumptions, making it useful for comparing deals.
2026 CRE Market and Rate Environment
The Federal Reserve's rate cycle has shifted in the borrower's favor from 2023 peaks, but rates remain elevated by pre-2022 historical standards. Current benchmarks:
- 10-year Treasury: Approximately 4.3%–4.6%
- Commercial mortgage rates (conventional): 6.5%–8.5% depending on LTV, DSCR, and property type
- SBA 504 debenture rate (20-year): ~6.0%–6.4% (fixed)
- Bridge loan rates: 8%–12% (often interest-only)
Cap rate trends: Office cap rates have expanded significantly (8%–10%+ in many markets) as remote work continues to suppress demand. Industrial and multifamily remain tighter (5%–7%). Retail has bifurcated between grocery-anchored (stable) and mall/big box (distressed).
For Pacific Northwest markets specifically:
- Portland: Downtown office distress, suburban industrial strong
- Seattle: Tech sector stabilization, industrial absorption solid
- Boise: Continued population growth supporting retail and multifamily
- Missoula/Billings: Smaller deal sizes, strong community bank activity
Owner-Occupied vs. Investment Property: Which Structure
Owner-occupied (your business uses the building):
- Access to SBA 504 and 7(a) programs (lower down payment, better rates)
- Personal guarantee typically required
- Underwriting weighs both property income AND business cash flow
Investment property:
- Conventional commercial mortgage or DSCR loan
- Higher LTV requirements (more down payment)
- Underwriting focuses on property income and tenant quality
- Personal guarantee may still be required, especially for smaller loans
The Commercial Appraisal
Unlike residential appraisals, commercial appraisals use three approaches and reconcile them:
Income approach: Capitalizes NOI at a market cap rate. Most weight is given to this for income-producing properties.
Sales comparison approach: Compares recent sales of similar properties. Most useful for owner-occupied properties without substantial tenants.
Cost approach: Values land + replacement cost of improvements less depreciation. More relevant for special-use properties (churches, schools, gas stations).
Appraisals for CRE typically cost $3,000–$8,000+ depending on property complexity and take 2–6 weeks to complete. They're ordered after the lender issues a Letter of Intent (LOI) or term sheet.
Environmental Due Diligence
All CRE lenders require a Phase I Environmental Site Assessment ($1,500–$3,000) to check for contamination history. If the Phase I identifies recognized environmental conditions (RECs), a Phase II assessment (physical sampling) may be required, adding cost and time.
Previous industrial use, dry cleaners, gas stations, or agricultural properties with chemical use history are common Phase I flags. Contaminated properties can still be financed but may require environmental insurance or remediation plans.
Preparing Your CRE Loan Package
For an owner-occupied purchase:
- Purchase and sale agreement
- Business financial statements (3 years tax returns, current P&L, balance sheet)
- Personal financial statements (all 20%+ owners)
- Business debt schedule
- Property information (lease agreements if tenants present, operating history)
- Phase I ESA
→ Document Checklist for business loan applications
For an investment property:
- Purchase and sale agreement or current mortgage statement (refinance)
- Rent roll (all tenants, lease expiration dates, rent amounts)
- Property operating statements (2–3 years)
- Lease agreements for major tenants
- Property condition report or inspection
Common Mistakes in CRE Financing
Underestimating closing costs. CRE closing costs are substantial: appraisal, environmental, title insurance, legal, origination fees, SBA guarantee fee (for SBA loans). Budget 2%–5% of loan amount.
Ignoring the balloon payment. Most conventional commercial mortgages amortize over 25 years but have a balloon at year 5, 7, or 10. If rates are higher at balloon date, refinancing may be expensive. Understand this risk at closing.
Buying before securing financing. CRE deals can fall apart late in the process over appraisal value, environmental findings, or underwriting changes. Always get a term sheet before waiving financing contingencies.
Choosing the wrong program. An investor who qualifies for a 504 because they own the business inside the property will significantly overpay using a conventional commercial mortgage. Know the options before choosing.
For any CRE deal analysis, start with the DSCR Calculator to see whether the property's income supports the financing you're considering. For ballpark monthly payment estimates across different loan structures, try the Loan Payment Calculator.