How to Find Value on Multi-Family Properties

TLDR

The transcript contrasts sales, replacement-cost, and income approaches. It says income matters more as a multi-family property gets larger, but it does not set a unit-count cutoff.

Table of Contents

• Three Ways to Value a Property
• The Income Approach
• The 1 Percent Rule, Explained
• The Cap Rate Formula
• Real Math on a Quadplex
• When the 1 Percent Rule Changes
• FAQ

Three Ways to Value a Property

Every building on land can be valued three ways.

1. Sales comparable sales. That house looks like my house. Same neighborhood, similar square footage, similar features. It sold for 300,000 dollars. If I get my house to similar condition, mine will sell for around 300,000 too.
2. Replacement cost. Land is worth 20,000 dollars. A new house on it costs 240,000 to build. So the property is worth around 260,000.
3. Income approach. What cash does this property generate? Value is a multiple of that cash.

Single family homes mostly use option one. Mostly sales comps. That is how you have always run comps on flips.

Income matters increasingly as a building gets larger. The transcript does not say exactly where comparable sales stop mattering or set a special rule for duplexes and fourplexes.

The Income Approach

The bigger a multi-family property gets, the more the income it generates matters to value.

If you have a quadplex and each of the four units rents for 1,000 dollars a month, that building brings in 4,000 dollars a month. An investor buying that building cares about the income, not the square footage per side. So the value is priced off the rent.

That is where the 1 percent rule comes from.

The 1 Percent Rule, Explained

The 1 percent rule is a quick screening shortcut: monthly rent equal to roughly 1 percent of value.

Rent of 4,000 a month points to roughly 400,000 under that shortcut. It is a first-pass filter, not an appraisal or a full cash-flow analysis.

The rule does not apply as cleanly on single family homes in every area, but it works in some markets. The markets where the 1 percent rule works on single family are usually the best cash-flow markets.

Pro Tip

Ross connected the 1 percent rule with roughly a 7 to 8 percent cap rate on a B-class property. In the recording, he said borrowing rates were around 7 percent and warned that the old shortcut might not be as attractive. That was context from the recording, not a current rate quote.

The Cap Rate Formula

Capitalization rate, or cap rate, is the clean version of the 1 percent rule.

Cap Rate = NOI divided by Property Value

That gives you the annual yield on the property if you paid all cash. A 7 percent cap rate means a 7 percent annual return on the purchase price before debt.

Rearranged, you can solve for value:

Property Value = NOI divided by Cap Rate

If you know the net operating income and the market cap rate, you can back into what a property should trade for.

Real Math on a Quadplex

Here is the full walkthrough.

Step 1: Gross Rent

Quadplex at 1,000 per unit per month. 4 units. Gross rent: 4,000 per month. Or 48,000 per year.

Step 2: Operating Expenses

You cannot use gross rent as NOI. You have to subtract the real cost of operating the building. I use a rough 40 percent expense ratio on rent as quick math, which accounts for:

• Property management (about 10 percent)
• Vacancy
• Maintenance
• Capex (roof, HVAC, big ticket items)
• Taxes
• Insurance

So of the 4,000 a month, about 60 percent is NOI. 2,400 a month. Or 28,800 per year.

Step 3: Apply the Cap Rate

At a 7 percent cap rate:

Value = 28,800 / 0.07 = about 411,000

That matches the 1 percent rule almost exactly. Rents of 4,000 a month yielding a value around 400,000.

Ross’s on-the-fly narration called the annual NOI 28,400 and produced about 405,700. The arithmetic above corrects 2,400 times 12 to 28,800 while preserving the lesson’s method.

Duplex Example

Duplex where each side rents for 1,200 a month. 2,400 a month total. Apply the same math:

• Gross: 28,800 per year
• NOI at 60 percent: 17,280
• Value at 7 percent cap: about 247,000

The 1 percent rule gives 240,000. Close enough for a quick estimate.

Key Concept

NOI is rent minus operating expenses, but not minus debt service. Your principal and interest payment is not an operating expense for cap rate purposes. Keep it separate or your cap rate math will be off.

When the 1 Percent Rule Changes

The 1 percent rule is the baseline for a B-class property. It moves up or down based on the quality of the neighborhood.

• C-class or rougher areas. You want a better cap rate because the risk is higher. In some rough markets I used to apply a 2 percent rule, meaning rent was 2 percent of value. A property renting for 4,000 a month, I was buying for 200,000. Deep discounts are how you compensate for the extra risk.
• A-class neighborhoods. You will not find 1 percent rents in those markets. Values are too high relative to rent because there is more appreciation potential. Expect less than 1 percent rule and pay for the location.

The 1 percent rule is a starting point, not a ceiling. Adjust up in tougher areas, adjust down in A-class markets.

Interest Rate Shifts Matter

The recording traces the 1 percent shortcut to a lower-rate period and warns that financing conditions can make it less useful.

Debt terms still matter after the unlevered cap-rate calculation. A cap rate equal to the loan’s interest rate does not, by itself, prove break-even cash flow: leverage, amortization, down payment, reserves, and financing costs also affect the result.

FAQ

Does the 1 percent rule prove a property will cash flow?

No. It is rough value math from rent. The source separately warns that the shortcut came from a lower-rate period. Underwrite the actual operating expenses, loan payment, financing costs, and reserves before deciding whether cash flow exists.

Does cap rate include my mortgage payment?

No. The formula in this lesson is NOI divided by property value. NOI subtracts operating expenses such as management, vacancy, maintenance, capex, taxes, and insurance. Debt service is a separate financing calculation.

Why do single family homes use comps instead of the income approach?

The source says single-family valuation usually leans on similar nearby sales. As multi-family size increases, the income approach matters more because buyers are evaluating the building’s income. It does not set a unit-count cutoff.

Why does the example use only 60 percent of rent as NOI?

Ross used 40 percent of gross rent as quick operating-expense math for management, vacancy, maintenance, capex, taxes, and insurance. That left 60 percent as estimated NOI. Replace that shortcut with the property’s actual expenses before relying on the value.

Can I value a duplex or fourplex only from income?

Do not assume that. The source only says the income approach becomes more important as a multi-family property gets larger. Check how the actual property, buyer pool, lender, and appraiser treat it.