Rates & InterestLetter C

Capitalization Rate (Cap Rate)

A real estate valuation metric that expresses a property’s unleveraged annual rate of return by dividing its Net Operating Income (NOI) by its current market value.

Overview & Practical Application

The Capitalization Rate (commonly shortened to Cap Rate) is the universal benchmark used by real estate investors, commercial appraisers, and institutional funds to compare the unleveraged yield and relative risk of income-producing properties across different asset classes and geographic markets.

Critically, Cap Rate evaluates a property as if it were purchased 100% in cash, intentionally excluding mortgage financing (debt service) from the equation so that investors can compare the intrinsic operational yield of two properties regardless of how each buyer structures their loan.

- Lower Cap Rates (e.g., 4.0% – 5.5%): Indicate lower perceived risk, high institutional demand, trophy Class-A locations, and strong appreciation expectations (higher asset price per dollar of NOI). - Higher Cap Rates (e.g., 7.5% – 10.0%+): Indicate higher immediate cash yield, secondary/tertiary markets, Class-C value-add properties, or elevated operational/tenant risk.

Mathematical Formula & Calculation

Cap Rate (%) = (Annual Net Operating Income (NOI) / Property Market Value) * 100

Divides the property’s stabilized annual Net Operating Income (before mortgage payments and income taxes) by the acquisition price or appraised market value.

Variable Definitions:

  • Annual NOI=Gross Annual Rental Income minus Vacancy Loss and Operating Expenses (excluding debt service)
  • Property Market Value=Purchase price or current appraised valuation of the asset

Real-World Underwriting Example

Scenario: A fourplex generates $72,000 in gross annual rent and incurs $21,600 in annual operating expenses (property taxes, insurance, repairs, management). It is listed for $775,000.

Calculation:
Annual NOI = $72,000 - $21,600 = $50,400.
Cap Rate = ($50,400 / $775,000) * 100 = 6.50%.

Takeaway: The fourplex operates at a 6.50% Cap Rate. Conversely, if the market demands a 7.00% Cap Rate, the implied valuation is $50,400 / 0.07 = $720,000.

Key Underwriting Takeaways

  • Cap Rate never includes mortgage principal or interest payments — it measures pure unleveraged asset yield.
  • Property Value and Cap Rate move inversely: "Cap Rate Compression" (falling cap rates) drives property values upward for a given level of NOI.
  • Positive leverage occurs when a property’s Cap Rate exceeds the investor’s borrowing cost (Loan Constant).

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