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How to Calculate Cap Rate

Commercial Day · Updated July 2026 · Est. reading time: 7 minutes

Investing in real estate, particularly apartment buildings, can be a lucrative venture if done correctly. However, not all properties are created equal, and determining whether a specific apartment building is a wise investment requires careful analysis. One of the most critical metrics used by real estate investors to evaluate the profitability of a property is the capitalization rate, or cap rate. In this post, we'll break down what cap rate is, how to calculate it, how it compares to current market benchmarks, and how to use it to make informed investment decisions.

What Is Cap Rate?

The capitalization rate, or cap rate, is a fundamental metric in real estate investing that measures the potential return on an investment property. It's expressed as a percentage and represents the relationship between a property's net operating income (NOI) and its market value or purchase price. Cap rate helps investors assess the profitability and risk of a property without factoring in financing methods like mortgages.

Cap rate is particularly useful for comparing multiple investment opportunities. A higher cap rate typically indicates a higher potential return but may also come with higher risk. A lower cap rate suggests a lower return but often corresponds to a more stable, less risky investment.

How to Calculate Cap Rate

Cap Rate = (Net Operating Income ÷ Property Value) × 100

1. Net Operating Income (NOI)

The annual income generated by the property after subtracting all operating expenses but before mortgage payments, taxes, and depreciation. Operating expenses include property management fees, maintenance, insurance, utilities, and property taxes.

NOI = Total Rental Income − Operating Expenses

2. Property Value

The current market value or purchase price of the property.

Example Calculation

Total Rental Income: $500,000/year

Operating Expenses: $200,000/year

Purchase Price: $4,000,000

NOI = $500,000 − $200,000 = $300,000

Cap Rate = ($300,000 ÷ $4,000,000) × 100 = 7.5%

Where Does That Fit? Cap Rate Benchmarks by Property Type (2026)

Property Type Typical Cap Rate Range Notes
Multi-Family (major metros) 3.5% – 4.5% Most compressed asset class — strong rental demand keeps rates tight
Industrial 5% – 6% Cooled from the 2020–2022 e-commerce boom, still tight in major logistics corridors
Retail 5% – 6% Stabilizing after years of "death of retail" headlines
Office 9% – 12%+ Highest cap rates in the market — still working through hybrid-work fallout
All-Property National Average 6.61% Source: CBRE Q1 2026 Canadian Cap Rate Report
A quick honest note: these figures reflect national and major-metro benchmarks — Toronto, Vancouver, and similar markets. Halifax and Atlantic Canada see far fewer commercial transactions, so local cap rates often sit outside these ranges entirely, usually wider. If you're evaluating a property here, treat a national average as a starting reference point, not a verdict — talk to a local broker or appraiser (or me) for something grounded in real comparables.

How to Use Cap Rate to Evaluate a Property

1. Compare Cap Rates Across Properties

This is easiest to see side by side:

Property A Property B
Rental Income $500,000 $650,000
Operating Expenses $200,000 $310,000
NOI $300,000 $340,000
Purchase Price $4,000,000 $4,000,000
Cap Rate 7.5% 8.5%

Property B looks like the better deal on paper — but a higher cap rate isn't automatically the win. If Property B's higher NOI comes from a riskier tenant mix, shorter leases, or deferred maintenance that's about to catch up with you, that extra percentage point is compensation for real risk, not free money.

2. Assess Market Trends

Cap rates vary by location and market conditions. High-demand, low-risk areas trade at lower cap rates because investors accept lower returns for stability. Less liquid markets — like much of Atlantic Canada — often carry higher cap rates to compensate for that reduced liquidity.

3. Evaluate Risk and Return

A 10% cap rate might mean declining demand or deferred repairs. A 5% cap rate might mean a stable, high-growth area with lower risk. Balance your desired return against your actual risk tolerance.

4. Determine if the Property Meets Your Investment Goals

Steady cash flow and long-term appreciation favour a lower cap rate in a stable market. Maximizing short-term returns with more risk tolerance favours a higher cap rate property.

5. Use Cap Rate to Estimate Property Value

Property Value = NOI ÷ Cap Rate

Example: a property with $200,000 NOI at a 6% area cap rate is worth roughly $3,333,333.

Limitations of Cap Rate

Conclusion

Cap rate is a powerful tool for sizing up a commercial property, but it shouldn't be the only number you look at. Location, condition, growth potential, and how it lines up with your own goals all matter just as much.

Why Work With Me?

Securing commercial mortgage financing requires expertise, market knowledge, and strong lender relationships. As a seasoned commercial mortgage broker, I specialize in helping investors and business owners secure the best financing solutions for their projects — whether that's a multi-unit residential development, office space, or industrial property.

Ready to take the next step in your real estate investment journey? Let's talk.

I look forward to hearing from you in regard to your mortgage needs.

Patrick
p.s. — Start the process anytime via this link, or schedule a meeting here.
p.s.s. — Licensed in Nova Scotia (Brokerage 2025-3000179, Broker 2025-3000180), Ontario (M23006699), and British Columbia (BCFSA #504098).
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