Property Valuation & InvestmentAbbreviation: GRM

Gross Rent Multiplier (GRM)

A quick valuation metric for income properties calculated by dividing the property price by gross annual rental income.

Abbreviation: GRM·Pronounced: “G-R-M”

Full Definition

The Gross Rent Multiplier (GRM) is a simple metric used to compare income-producing properties by dividing the property's purchase price by its gross annual rental income (before expenses). GRM = Property Price ÷ Gross Annual Rent. A lower GRM indicates a better value relative to rental income. Unlike the cap rate, GRM does not account for vacancy, operating expenses, or property condition — it is a screening tool, not a precise valuation method. GRM can also be used to estimate value: Value = Gross Annual Rent × Market GRM. It is most useful for quickly comparing similar residential investment properties in the same market.

Real-World Example

A 4-unit building generates $60,000 in annual gross rent and is listed for $540,000. GRM = $540,000 ÷ $60,000 = 9. A comparable building at GRM of 8 would be a better deal.

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How Gross Rent Multiplier (GRM) Appears on the Real Estate Exam

Common question types, tested concepts, and what to watch out for

GRM = Price ÷ Annual Gross Rent. Lower GRM = better deal. The exam often asks you to calculate GRM or use it to estimate value. Remember: GRM uses GROSS rent (before expenses), unlike cap rate which uses NOI (after expenses).

A rate used to estimate the value of income-producing property, calculated as Net Operating Income divided by property value.

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Net Operating Income (NOI)(NOI)

The annual income generated by an income-producing property after subtracting operating expenses, but before debt service.

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Appraisal

A professional estimate of a property's market value prepared by a licensed or certified appraiser.

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Comparable Sales (Comps)

Recently sold properties similar in size, condition, and location used by appraisers and agents to estimate a property's market value.

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