Apartment Building Loan Guide

What is an apartment building loan?

An apartment building loan finances commercial multifamily properties with five or more units. Lenders size debt from normalized net operating income (NOI), debt service coverage (DSCR), debt yield, and loan-to-value (LTV)—not from residential debt-to-income ratios used on one-to-four-unit rentals.

How apartment complex loans differ from small rental financing

Investors moving from duplexes or four-plexes into larger apartment buildings enter commercial underwriting. Key differences include:

Review five-plus unit financing basics before scaling past four units.

Loan products for apartment buildings

Agency stabilized debt fits durable occupancy and in-place NOI that meets agency thresholds. Bridge debt supports value-add scope, lease-up, and shorter hold periods when a credible takeout path exists. Bank balance sheet and CMBS fill gaps by market, size, and sponsor relationship. Debt funds may offer speed or flexibility at higher all-in cost.

Use the agency vs bridge comparison and loan sizing calculator to pressure-test structure before outreach.

Underwriting checklist for sponsors

1. Normalize NOI with documented revenue and expense adjustments.
2. Size proceeds under base and downside DSCR, debt yield, and LTV cases.
3. Prepare entity documents, guarantor financials, and track record summary.
4. Order or budget third-party reports appropriate to the product.
5. Document stabilization timeline, capex scope, and refinance assumptions.

Execution timeline expectations

Bridge executions may close in roughly 30–45 days when diligence is organized. Agency and CMBS paths often run 60–90+ days. Delays usually trace to incomplete packages, appraisal gaps, or late legal entity cleanup—not lender process alone.

Next steps

Run commercial DSCR and debt yield scenarios, then read commercial DSCR explained and multifamily underwriting basics before requesting quotes.

Frequently asked questions