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Phoenix Appraisal Blog / Appraisal basics

Beyond the appraisal myths

Eight common claims—and what the market evidence actually tells us.

· Appraisal basics

Eight appraisal myths that deserve a closer look

A home’s price, condition, tax value and appraised value answer different questions. Let’s clear up the ones most often confused.

Illustration of a Phoenix home, an appraisal checklist and a magnifying glass
Illustration: valuation means examining the whole property and its market.

Why does the tax notice show a different value?

Myth 01

“The appraisal guarantees the sale price.”

Reality: It is an opinion of value supported by evidence as of an effective date. A contract price is what particular parties agreed to; financing, urgency or concessions can make that price differ from a market-value opinion.

Myth 02

“The appraiser is my home inspector.”

Reality: An appraiser’s property observation informs value and lender requirements. A home inspector examines systems and conditions in far greater detail for the buyer. An appraisal does not replace a dedicated home inspection.

Myth 03

“The appraiser sets the market.”

Reality: Buyers and sellers create market evidence. The appraiser researches, verifies and interprets it for a particular property and date; an opinion does not dictate what someone must pay.

Myth 04

“Price per square foot is the value.”

Reality: Dividing price by living area is a quick comparison, not a valuation method by itself. Two same-size homes can differ in site, condition, design, amenities and location. Comparable sales need thoughtful analysis.

Myth 05

“If I pay, I am the appraisal client.”

Reality: In a typical lender-ordered mortgage assignment, the lender is the appraiser’s client even when the borrower pays the appraisal fee. Borrowers have rights to receive the report and can raise concerns through the lender. In a private assignment, the client depends on who engages the appraiser.

Myth 06

“The remodel cost adds dollar for dollar.”

Reality: An upgrade’s cost and its contribution to market value are different. A $50,000 project can attract buyers without adding $50,000 to the home’s value; timing, quality and local buyer preferences matter.

Myth 07

“Only the interior counts.”

Reality: Appraisers consider the site, exterior condition, access, landscaping and how a property presents in its neighborhood, along with the interior and relevant market data. Curb appeal matters when buyers demonstrate that it matters.

Myth 08

“A Zestimate or disagreement overturns it.”

Reality: A reconsideration of value can identify factual errors, omitted features or relevant comparable sales. A different opinion or online estimate alone is unlikely to establish an error. For a mortgage appraisal, ask the lender about its formal review process.

What the myths miss

Appraisal is a disciplined analysis of a specific property in a specific market at a specific time. Good questions are welcome: check the facts, ask which sales are truly comparable and clarify the purpose of the value being quoted. That is more useful than treating a contract price, renovation receipt, tax notice or online estimate as the final word.

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The tax-value explainer

Market Value vs. Full Cash Value vs. Limited Property Value

Three numbers can appear in the same conversation. Their dates, purposes and methods matter as much as their dollar amounts.

Property-specific opinion

Market value

In a typical appraisal, an opinion of the most probable price under defined market conditions as of an effective date. The appraiser analyzes the particular property and relevant sales for the assignment.

County tax valuation

Full Cash Value (FCV)

Arizona’s statutory property-tax value. Where no other statutory method applies, it is synonymous with an annually estimated market value. Maricopa County’s figure may differ from a current private appraisal or actual sale price because the assessment has its own valuation date and process.

Tax-base calculation

Limited Property Value (LPV)

For most property, the value used as a basis for primary and secondary property taxes. Generally calculated from the prior LPV plus 5%, never above current FCV; statutory changes to the property can require another calculation.

The myth: “Full Cash Value always equals the home’s current market value.” The reality: FCV has a market-value connection under Arizona law, but it need not match a property-specific appraisal on another date or the amount a buyer actually pays. LPV is a separate statutory tax value.

“Ad valorem” means “according to value.” Arizona property taxes are ad valorem, but a tax bill also depends on assessment percentages, exemptions, tax rates and applicable rules. The real-property tax valuation date is January 1 of the year before the tax year. A.R.S. § 42-11001 · § 42-13301 · § 42-13302.