What Gross rent multiplier (GRM) means
A lower GRM means less price per dollar of gross rent, all else equal. All else is rarely equal: expense burden, condition, rent quality, and growth prospects can justify different multiples.
Use the same rent basis for every comparison: current scheduled rent or supported market rent.
GRM excludes vacancy and every operating expense, which is why it should be followed by NOI analysis.
GRM example
- Property price: $300,000
- Annual gross rent: $36,000
Result: $300,000 / $36,000 = 8.33 GRM.
When investors use it
- Comparing similar rental properties quickly
- Checking asking price against local rent multiples
- Estimating a rough value range from market GRMs
- Finding outliers for deeper review
Common mistakes
- Using monthly rent without annualizing
- Treating GRM as years to pay off the property
- Comparing properties with different utility or expense structures
- Using projected rent on one property and current rent on another
Frequently asked questions
Is a lower GRM always better?
No. A lower multiple may compensate for repairs, weak tenancy, high expenses, or location risk.
How is GRM different from cap rate?
GRM uses gross rent and ignores expenses. Cap rate uses NOI after vacancy and operating expenses.
Can GRM estimate value?
A market-derived GRM multiplied by supported annual rent can create a rough value check, but it should be reconciled with expenses, condition, and comparable sales.
This guide is educational and does not provide investment, lending, tax, legal, or appraisal advice. Verify inputs and requirements for the specific property, lender, and jurisdiction.
Put the metric inside a complete deal.
PropLurk keeps acquisition inputs, financing, expenses, returns, and the decision record together.