How Apartment Buildings Are Valued | Chicago Apartment Investing Guide

How Apartment Buildings Are Valued

Apartment buildings with 5+ units are typically valued differently than single-family homes or small residential properties. Instead of relying primarily on comparable sales, investors and lenders often focus on the property's income performance.

Because of this, metrics such as Net Operating Income (NOI), operating expenses, and market capitalization rates play a major role in determining a building's estimated market value.

Quick Navigation

• The Income Approach
• Net Operating Income
• Capitalization Rates
• Example Valuation
• Other Value Factors

The Income Approach

Most apartment building valuations rely on what is called the income approach. This method estimates value based on the income the property generates.

Under this approach, investors analyze the building's rental income and operating expenses to determine how much income the property produces annually.

Net Operating Income

The first step in most multifamily valuations is calculating the property's Net Operating Income.

NOI = Gross Rental Income – Operating Expenses

Related guides:
• What Is Net Operating Income (NOI)?
• How to Calculate NOI
• Apartment Building Operating Expenses

Capitalization Rates

After determining the building's NOI, investors typically apply a market cap rate to estimate value.

The basic formula is:

Property Value = Net Operating Income ÷ Cap Rate

For example, if a building produces $200,000 in NOI and similar buildings sell at a 6% cap rate, the estimated value may be:

$200,000 ÷ 0.06 = $3,333,333 estimated value

Learn more:
What Is a Cap Rate?

Example Apartment Building Valuation

Consider a 16‑unit apartment building with the following financials:

• Gross rental income: $320,000
• Operating expenses: $120,000
• Net Operating Income: $200,000

If the local multifamily market trades near a 6% cap rate, investors may estimate a value of roughly $3.33 million using the income approach.

Other Factors Affecting Value

While income performance is critical, investors also consider additional factors when evaluating apartment buildings:

• Building condition and age
• Location and neighborhood demand
• Tenant quality and lease terms
• Future renovation or value‑add opportunities

Related guide:
Value‑Add Apartment Buildings

Financing Considerations

Because apartment building value depends on income performance, lenders carefully review income, expenses, and projected cash flow before approving loans.

Many investors choose to review financing options and borrowing capacity before submitting offers on multifamily properties.
Get Pre‑Qualified for an Apartment Building Loan

Related Apartment Investment Articles

• Chicago Apartment Investor Resource Center
• How to Buy a 5+ Unit Apartment Building
• Apartment Building Cash Flow Explained

Frequently Asked Questions

How are apartment buildings typically valued?
Most apartment buildings are valued using the income approach based on Net Operating Income and market cap rates.

Do comparable sales matter?
Comparable sales can influence valuation, but income performance is usually the primary factor for multifamily properties.

Why does NOI affect property value?
Higher Net Operating Income generally increases property value because investors are willing to pay more for stronger income streams.