GRM — Gross Rent Multiplier — is one of the fastest ways to size up a rental property before running a full underwrite. If you own or invest in Los Angeles apartment buildings, you will hear this number constantly. Understanding how GRM works, and where its limits are, will help you move faster and avoid overpaying.
GRM stands for Gross Rent Multiplier. It measures the ratio between a property's purchase price and its gross annual rental income. The formula is:
GRM = Purchase Price ÷ Gross Annual Rent
Example: A 6-unit building in Koreatown sells for $2,100,000 and collects $120,000 per year in rent. GRM = $2,100,000 ÷ $120,000 = 17.5.
You need two numbers: the purchase price and the current gross annual rent. Multiply monthly rents by 12 to get annual gross rent, then divide the price by that figure. If comparing two properties, the lower GRM is the better deal relative to rent — assuming equal quality, location, and expenses.
GRM varies significantly by submarket. In 2025–2026, typical ranges in LA:
Lower GRM means more income relative to price. South LA and Inglewood attract buyers seeking current cash flow. Echo Park and Silver Lake command higher GRMs because buyers are paying for appreciation potential.
GRM uses gross rent and ignores expenses. Cap rate uses net operating income (NOI), which accounts for vacancy, management, insurance, maintenance, and taxes. Cap rate is more precise; GRM is faster for initial screening. Use GRM to filter a list. Use cap rate to decide whether to buy.
GRM tells you nothing about expenses. Two buildings with the same GRM can have very different returns if one has higher insurance, deferred maintenance, or vacancy problems. GRM also ignores below-market rents — a building with a 16 GRM and 30% below-market rents may be a better deal than a 14 GRM at market rents. Always run the full numbers before making an offer.
GRM stands for Gross Rent Multiplier. It is the ratio of a property's price to its gross annual rental income, used to quickly compare the relative value of income-producing properties.
There is no universal answer — it depends on the market. In Los Angeles, GRM typically ranges from 11 to 19 depending on the submarket. Lower GRM means you are paying less per dollar of rent collected. In high-appreciation markets like the Eastside, GRM is naturally higher than in higher-yield submarkets like South LA.
Divide the purchase price by the gross annual rent. Example: $1,800,000 price ÷ $108,000 annual rent = GRM of 16.7. You can also use monthly rent (price ÷ monthly rent), but annual is the industry standard for comparison.
Generally yes — a lower GRM means you are paying less per dollar of rent. But GRM ignores expenses and rent upside. A low-GRM building with high vacancy or major deferred maintenance may be a worse investment than a higher-GRM building with stable tenants and clean financials.
GRM uses gross rent before any expenses. Cap rate uses net operating income — rent minus all operating expenses. Cap rate is more accurate for measuring return. GRM is faster for initial screening. Most experienced LA multifamily investors use GRM to filter and cap rate to decide.
In Koreatown in 2025–2026, 5–20 unit RSO buildings have traded in the 14–17 GRM range depending on unit mix and rent levels. Buildings with significant below-market rents command higher GRMs because buyers price in the upside. Call Kingside at (213) 797-7181 for a current market read before making an offer.
Kingside Investment Group specializes in LA apartment building sales. For a free pricing analysis or GRM review of a specific property, call (213) 797-7181 or email Andres.Diaz@kw.com.
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