The Gross Rent Multiplier (GRM) is a fast, top-line valuation ratio used by multifamily and rental property investors to screen listings and compare market pricing across similar properties in a neighborhood.
GRM represents the number of years it would take for a property’s gross scheduled annual rent (before deducting property taxes, insurance, utilities, repairs, or vacancy) to equal its purchase price.
- Lower GRM (e.g., 6.0 – 9.0): Indicates stronger gross cash flow relative to the purchase price. - Higher GRM (e.g., 14.0 – 20.0+): Indicates that property prices are high relative to current rents, typical of coastal appreciation markets.
While GRM is useful for rapid initial screening when seller expense records are unavailable, investors must always follow up with a full Net Operating Income (NOI) and Cap Rate analysis because GRM ignores operating expense disparities (such as old buildings with landlord-paid utilities vs. separately metered new construction).