Example 1Duplex Screening — Is the Price Reasonable?
Given:$320,000, $1,000, $1,000, $24,000
Αποτέλεσμα:GRM = 13.3
GRM = $320,000 / $24,000 = 13.3×. If comparable duplexes in this neighborhood sell at GRMs of 10–12×, this duplex appears slightly overpriced. At a 12× GRM, the fair value would be $24,000 × 12 = $288,000 — suggesting the seller is asking $32,000 more than the market average. This is a starting point for negotiation, not a final conclusion.
Example 2Valuing a Property Using Comparable GRMs
Given:$60,000, $600,000 price / $65,000 rent = GRM 9.2, $550,000 price / $58,000 rent = GRM 9.5, $580,000 price / $62,000 rent = GRM 9.4
Αποτέλεσμα:Estimated Value = $564,000
Market GRM from comparables averages (9.2 + 9.5 + 9.4) / 3 = 9.37×. Estimated value = $60,000 × 9.37 = $562,200, rounded to ~$564,000. This rapid estimate can be computed in 30 seconds and gives a sanity check on the listing price before investing hours in deeper due diligence.
Example 3High-Cost Market vs. Secondary Market Comparison
Given:$1,200,000, $60,000, $180,000, $21,600
Αποτέλεσμα:NYC GRM = 20.0 vs. Midwest GRM = 8.3
The NYC property has a GRM of 20×, the Midwest property 8.3×. This does not automatically mean the Midwest property is a better investment — it reflects different market risk profiles, appreciation expectations, and tenant demand. In general, lower-GRM markets offer better current income yields but lower appreciation potential; higher-GRM markets reflect growth and scarcity premiums.
Example 4Using GRM to Quickly Screen 5 Properties
Given:$400,000 / $40,000 rent, $350,000 / $42,000 rent, $500,000 / $38,000 rent, $290,000 / $36,000 rent, $420,000 / $48,000 rent
Αποτέλεσμα:GRMs: A=10.0, B=8.3, C=13.2, D=8.1, E=8.75 — Properties B, D, E warrant deeper analysis
Computing GRM across five properties in under a minute reveals that Property C (GRM 13.2) is the most expensive relative to its rents and should be deprioritized. Properties B and D (GRM ~8) offer the best gross income per dollar of price. Property E offers the most absolute rent for the price. All three warrant a full cap rate and cash-on-cash analysis before making offers.
Example 5Monthly GRM (Alternative Calculation)
Given:$250,000, $1,800
Αποτέλεσμα:Monthly GRM = 138.9 (or Annual GRM = 11.6)
Some investors use a monthly GRM (Price / Monthly Rent) rather than annual. Monthly GRM = $250,000 / $1,800 = 138.9. Annual GRM = $250,000 / ($1,800 × 12) = $250,000 / $21,600 = 11.6×. Either version works; just ensure you are comparing consistently (annual to annual, monthly to monthly) when benchmarking against comparable sales.