Real Estate Appraisal Adjustment Practice Questions

A comparable home sold for $330,000. It has a feature worth $12,000 less than the subject's corresponding feature, but its condition is worth $8,000 more. What adjusted sale price does it indicate for the subject?

$334,000: start with $330,000, add $12,000 for what the comparable lacks, and subtract $8,000 for its superior condition. You adjust the comparable sale price to make the comparison more like the subject. You do not change the subject's features or add both differences simply because both matter.

This guide develops that reasoning with a complete fictional adjustment grid. Every property, price, adjustment, and weight is supplied for study. None is an actual appraisal or an official exam question.

Comparable-sales adjustments: add or subtract?

The subject is the property whose value you are estimating. A comparable is a different property with a known sale price. To make that sale useful, the exercise provides amounts representing how the market values differences between the two.

Ask: If this comparable had the subject's characteristics, would its indicated price need to be higher or lower?

• A comparable lacking a valuable subject feature receives a positive adjustment.
• A comparable with a superior feature receives a negative adjustment.
• A feature that matches needs no adjustment for that feature.

These directions apply to the simplified physical-feature comparisons below. Do not turn them into a universal instruction to add for every advantage or subtract every dollar appearing in a transaction.

Fannie Mae's guidance on comparable adjustments requires market-supported differences rather than arbitrary rules of thumb. In a practice problem, the supplied adjustment is an input. In actual appraisal work, deriving and supporting it is part of the work.

Superior vs. inferior comparable: a sign-check example

Imagine two otherwise equivalent fictional sales under identical market conditions. One has a feature the other lacks. The supplied sale prices are $312,000 without the feature and $324,000 with it. The question expressly says the entire difference is attributable to that feature.

The exercise therefore assigns $12,000 to the difference. When the subject has the feature and the comparable does not, add $12,000 to the comparable's sale price. Reverse the situation and subtract $12,000.

The condition “otherwise equivalent” is doing important work. Two real sale prices do not, by themselves, prove that one feature caused the difference. Location, condition, transaction terms, and other factors can differ. This exercise teaches adjustment direction under stated assumptions, not a shortcut for appraising real homes from two listings.

Real estate appraisal practice: a complete adjustment grid

Subject: A fictional home with a two-car garage, the stated reference condition, and 1,800 square feet of finished above-grade area. Treat every factor not listed as equal. The exercise has already supplied market-supported adjustment amounts; do not derive them from construction cost.

Comparable A

$330,000 + $12,000 − $8,000 = $334,000.

Its two differences move in opposite directions. A $20,000 positive adjustment would treat superior condition as though it were another deficiency. A $20,000 negative adjustment would make the opposite mistake.

Comparable B

$344,000 + $12,000 − $18,000 = $338,000.

The garage adjustment is positive, but the area adjustment is larger and negative. The net adjustment is therefore negative. Check individual signs before combining them; do not decide the sign merely from whether this sale price is above the other comparables.

Comparable C

$325,000 + $9,000 = $334,000.

This comparable needs one adjustment under the exercise's facts. There is no extra adjustment simply because it sold for the lowest unadjusted price.

Net vs. gross appraisal adjustments: calculation examples

Using these exercises' definitions, net adjustment is the algebraic sum, with signs. Gross adjustment is the sum of the absolute adjustment amounts.

Comparable A has net +$4,000 but gross $20,000. Comparable B has net −$6,000 but gross $30,000. Comparable C has both net and gross $9,000.

A small net adjustment can therefore hide several large offsetting changes. It does not automatically make a comparable the best evidence. The cited Fannie Mae guidance also says the amount or number of adjustments must not be the sole basis for judging a comparable's acceptability.

For an exam question that supplies a selection rule, use that rule. Without one, do not invent a formula saying “smallest net adjustment always wins.”

How to reconcile adjusted sales using stated weights

The adjusted indications span $334,000 to $338,000. That range is not itself a directive to compute the arithmetic average.

Suppose the question now explicitly assigns weights of 50% to A, 25% to B, and 25% to C. Then:

($334,000 × 0.50) + ($338,000 × 0.25) + ($334,000 × 0.25) = $335,000.

The weights sum to 100%, and the result falls within the adjusted range. Both are useful arithmetic checks. The weights are fictional instructions, not a standard appraisal formula.

In actual reconciliation, Fannie Mae calls for an explanation of why certain sales received more weight. An appraisal judgment is not replaced by automatically averaging whichever numbers a table contains.

Three tempting shortcuts to reject

Use the feature's construction cost. Not unless the exercise tells you to. The question might give a $20,000 installation cost but only a $12,000 market contribution. For a stated market-value adjustment, use the contribution.

Subtract a seller concession dollar for dollar. Not automatically. Fannie Mae's guidance ties the adjustment to the concession's effect on the sale price, which need not equal the seller's cost. A study question must supply that effect or the applicable assumption.

Adjust both the subject and the comparable. The grid here changes the comparable's sale price toward subject-equivalent conditions. Changing both sides would count the same difference twice.

Appraisal adjustment practice questions and answer key

1. A comparable sold for $400,000. It has a superior porch valued at $15,000 relative to the subject, but lacks another subject feature assigned $10,000. All else is equal. Find the adjusted indication.

2. A comparable sold for $285,000. Its condition is inferior by $7,000 and its garage is inferior by $6,000. Find the net adjustment, gross adjustment, and adjusted indication.

3. A comparable has adjustments of +$18,000, −$13,000, and −$5,000. Does a zero net adjustment mean nothing was adjusted?

Answer key

1: $400,000 − $15,000 + $10,000 = $395,000. Net adjustment is −$5,000; gross is $25,000.

2: Both changes correct deficiencies, so both are positive. Net and gross are $13,000; adjusted indication is $298,000.

3: No. Net adjustment is $0, but gross adjustment is $36,000. The positive and negative effects cancel numerically, not substantively.

Appraisal adjustment questions candidates often mix up

Do you adjust the subject property or the comparable?

In this sales-comparison exercise, keep the subject fixed and adjust the comparable's sale price. The question is what that sale would suggest if the comparable matched the subject on the specified difference. Changing both sides destroys the reference point.

Do I add the full cost of a garage or renovation?

Not unless the practice question explicitly supplies that figure as the adjustment. Construction cost and the market contribution of a feature are different concepts. Fannie Mae's adjustment guidance calls for market-supported adjustments. All dollar adjustments in this article are supplied teaching inputs, not a price list for appraising an actual home.

Can the net adjustment be zero when the gross adjustment is large?

Yes. In an original mini-example, +$15,000 and -$15,000 produce a $0 net adjustment but a $30,000 gross adjustment. Zero net means the signed amounts cancel; it does not mean no differences were adjusted. Use absolute values only for the gross calculation.

Must the final value be the average of all adjusted prices?

No. Use an average or weighted average only when the question asks for it or supplies the weights. A real reconciliation is not automatically an arithmetic mean. In the worked grid, the stated weighting rule is part of the problem, which makes that answer checkable without pretending that a fixed formula settles every appraisal.

The next useful step

For the broader valuation concepts, return to Real Estate Principles. Then distinguish an appraisal result from the lending calculation in loan-to-value practice.

The general real estate practice test covers more than appraisal. When you encounter a comparison question, identify the subject, label each comparable difference, and record each sign before calculating. The goal is a defensible adjustment, not a memorized answer attached to a particular dollar amount.