What Is Gross Rent Multiplier (GRM)?
Also known as: Gross Rent Multiple
Gross rent multiplier is a back-of-the-envelope screening ratio: a property’s price divided by the gross rent it collects in a year. A lower multiplier means the building returns its price through rent sooner, though the ratio ignores expenses, vacancy, and financing entirely.
Gross rent multiplier is a back-of-the-envelope screening ratio: a property’s price divided by the gross rent it collects in a year. A lower multiplier means the building returns its price through rent sooner, though the ratio ignores expenses, vacancy, and financing entirely.
Gross Rent Multiplier (GRM) explained
Take the price, divide by annual gross rental income (rent before any expenses), and the quotient is the multiplier. Some investors use monthly rent instead, which yields a far larger number, so the convention should be stated whenever one is quoted. With only two inputs, it can be run across a stack of listings in minutes. Properties of the same class in one market tend to trade within a similar band, and a building far outside that band deserves a closer look at income, expenses, or price.
Disposition teams reach for GRM when a buyer asks for a quick read on a rental. A landlord scrolling through a deal package may not want a full pro forma on the first pass, only whether the price looks reasonable against the rent. Wholesalers also use it in reverse: multiply the local multiplier by a property’s annual rent and you get a rough ceiling for what a rental buyer will pay. Callers help by confirming current rent, lease status, and whether the tenant is month to month.
Gross figures hide the difference between a clean building and an expensive one. Two properties with identical multipliers can have very different net income if one has high taxes, older systems, or tenants who pay no utilities. The ratio also says nothing about vacancy, rehab cost, or financing, and it falls apart when rents are projected rather than in place. Use it to decide what deserves a deeper look, then switch to net measures like cap rate before pricing anything.
Example
A landlord looking at two small multifamily deals from the same wholesaler compares each price to its yearly rent. One building has a clearly lower multiplier, which looks like the better buy until the landlord learns the tenants pay no utilities and the roof is near the end of its life. The second deal ends up with the stronger income once those costs are counted.
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