Income Approachmedium8.2% of exam

A single-family rental is best valued by GRM rather than direct capitalization primarily because:

Correct Answer

B) Buyers of houses price rent multiples; single-house expense data is thin

Why this is correct: The choice of method should follow market behavior. For single-family rentals, investors and the market often think in terms of price-to-rent multiples (GRM). Furthermore, reliable, property-specific expense data for a single house is often unavailable or too volatile to support a credible direct capitalization analysis. Why the other choices are wrong: Appreciation rates are not the basis for choosing an income method. Cap rates are not illegal for any property type. GRM does not incorporate financing terms; it uses gross income. Exam tip: Use GRM for small residential rentals where the market uses it and expense data is thin. Use direct cap for larger income properties where NOI is stable and the market thinks in yields.

Answer Options

Houses appreciate faster than apartments

Buyers of houses price rent multiples; single-house expense data is thin

Cap rates are illegal below five units

GRM fully incorporates financing terms while cap rates never can do so

Why This Is the Correct Answer

Option B is correct on both counts it asserts. Buyers in the single-family rental market price properties by rent multiples, so a GRM mirrors actual market behavior, and property-specific expense data for one house is typically too thin or too volatile to support a credible net operating income. A GRM also requires only observable inputs, sale price and rent, both verifiable from market sources. The appraiser must still confirm that the comparables share the subject's expense structure, particularly who pays utilities, since the multiplier hides expenses rather than accounting for them.

Why the Other Options Are Wrong

Option A: Houses appreciate faster than apartments

Relative appreciation rates between property types are a market observation about future price movement and have nothing to do with which valuation technique the available data supports. Even if houses did appreciate faster in a given period, that would not make gross rent a better basis than net income. Method selection follows data availability and participant behavior, not expected growth.

Option C: Cap rates are illegal below five units

There is no legal restriction on using capitalization rates for properties of any size, and appraisers capitalize income for small residential rentals whenever the data supports it. Lending rules distinguish one-to-four unit residential from commercial for underwriting purposes, but that affects loan products and forms, not the legality of a valuation technique. The option invents a prohibition that does not exist.

Option D: GRM fully incorporates financing terms while cap rates never can do so

Neither multiplier incorporates financing terms; both are derived from sale prices, which is exactly why appraisers adjust comparable sales for atypical financing before extracting either measure. If anything, a GRM is the blunter instrument because it ignores expenses as well. The claim reverses the relationship, since capitalization analysis has more tools for addressing financing through techniques such as mortgage-equity analysis.

Use the market's own yardstick

Ask how buyers in this market actually talk about price. If they say the house rents for a certain amount and sells for a multiple of it, the GRM is the right tool. If they talk about net income and yield, capitalize.

How to use: On method selection questions, choose the option grounded in participant behavior and data availability. Reject answers based on legal prohibitions, appreciation rates, or claims about financing.

Exam Tip

Compound answer choices must be correct in every part. Option B here makes two claims, and both must hold for the choice to be right.

Common Mistakes to Avoid

-Forcing direct capitalization where expense data will not support a credible net operating income
-Mixing monthly and annual rent when deriving and applying a GRM
-Ignoring differences in who pays utilities among the comparables
-Treating the more complex method as automatically more credible

Concept Deep Dive

Analysis

This tests method selection, the judgment that the technique should follow how the relevant market actually behaves rather than which tool is theoretically more sophisticated. Direct capitalization requires a credible net operating income, which means reliable expense data for taxes, insurance, maintenance, management, and reserves, plus an overall rate extracted from sales of comparable properties whose net income is known. For a single house that chain breaks in two places: owner records are thin, inconsistent, and often mix capital items with operating costs, and buyers of single-family rentals rarely disclose enough for an appraiser to extract a reliable overall rate. What these buyers do use is the price-to-rent multiple, comparing what a house costs with what it rents for, which is precisely a gross rent multiplier. Because the GRM can be derived from two observable facts, the sale price and the monthly rent, it fits both the data available and the way participants think, which is the test for choosing a method.

Background Knowledge

You need to know that GRM equals sale price divided by gross rent while direct capitalization divides net operating income by an overall rate, and what data each requires. You should also understand that the appropriate method depends on data availability and market behavior, that GRM assumes similar expense ratios among comparables, and that the reliability of any technique must be addressed in reconciliation.

Real-World Application

Valuing a rented three-bedroom house, you find four comparable sales with known rents and derive monthly gross rent multipliers clustering near 140. Owner expense records are incomplete and mix a roof replacement with routine repairs, so you rely on the GRM, confirm all four comparables have tenant-paid utilities like the subject, and explain the choice in the reconciliation.

gross rent multiplierdirect capitalizationsingle-family rentalmethod selectionexpense data

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A property's NOI is $88,000 and comparable sales indicate rates of 6.5%, 6.8% and 7.1%. Using 6.8%, the indicated value is:

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