What Is Appraisal?
A home appraisal is a professional assessment of a property's market value conducted by a licensed appraiser. Lenders require appraisals to ensure the property is worth at least the loan amount. Appraisals use comparable sales, property condition, and market analysis to determine value. An appraisal gap — when the appraised value falls below the purchase price — can derail a transaction or require additional cash from the buyer.
Key Facts
- Home appraisals typically cost $300 to $600 for a standard single-family home, with complex or high-value properties costing $1,000 or more — paid by the borrower regardless of outcome
- The appraiser must be independent of the lender — the Dodd-Frank Act's appraiser independence requirements (TILA § 129E) prohibit lenders from influencing appraisal outcomes
- FHA appraisals are more rigorous than conventional — they require health and safety checks (peeling paint, handrails, water heater) in addition to value assessment, and the appraisal stays with the property for 120 days
- Appraisal waivers (PIW — Property Inspection Waiver) are available on some conventional loans through Fannie Mae/Freddie Mac when automated underwriting determines sufficient data exists — these skip the appraisal entirely
- The Home Valuation Code of Conduct (HVCC), replaced by Dodd-Frank provisions, was enacted after widespread pre-2008 appraisal inflation contributed to the housing bubble
Live Data
How Does a Home Appraisal Work?
A licensed appraiser visits the property and evaluates it using three approaches (though not all apply to every property):
- Sales comparison approach: The primary method for residential properties. The appraiser identifies 3-6 recent comparable sales ("comps") in the area with similar size, condition, age, and features. Adjustments are made for differences — a comp with a garage adds value if the subject property lacks one, for example.
- Cost approach: Estimates the cost to rebuild the structure plus land value, minus depreciation. Used mainly for new construction or unique properties with few comps.
- Income approach: Used for investment properties. Estimates value based on rental income potential and capitalization rates.
The appraiser produces a written report (typically the Uniform Residential Appraisal Report, Fannie Mae Form 1004) that includes the property description, neighborhood analysis, comparable sales grid, photographs, and the final opinion of value. The entire process typically takes 1-3 weeks.
What Happens If the Appraisal Comes in Low?
An appraisal gap occurs when the appraised value is lower than the agreed purchase price. This creates a problem because the lender will only lend based on the appraised value (or the purchase price, whichever is lower). Options include:
- Renegotiate the price: Ask the seller to reduce the price to the appraised value
- Bring cash to cover the gap: Pay the difference between the appraised value and the purchase price out of pocket
- Challenge the appraisal: Provide additional comps that the appraiser may have missed and request a reconsideration of value (ROV)
- Walk away: If the contract includes an appraisal contingency, the buyer can terminate without losing their earnest money
- Waive the appraisal contingency: Some buyers in competitive markets waive this protection — committing to pay any gap, which increases financial risk
What Is the Difference Between an Appraisal and a Home Inspection?
These are separate processes with different purposes:
- Appraisal: Determines market value for the lender. Required by the lender. The appraiser notes obvious condition issues but does not test systems or provide a detailed condition report.
- Home inspection: Evaluates the physical condition of the property for the buyer. Optional (but strongly recommended). The inspector tests HVAC, electrical, plumbing, roof, foundation, and other systems in detail.
An appraiser might note that the roof appears worn; an inspector would climb on the roof, estimate remaining useful life, and identify specific defects. Both serve the buyer's interests but from different angles.
Why Do Appraisals Matter for Financial Distress?
Appraisals are the primary mechanism preventing overlending — ensuring borrowers don't take on mortgages that exceed the property's value. Before the 2008 crisis, inflated appraisals contributed to the housing bubble by enabling loans on properties worth less than the debt. When prices fell, millions of homeowners found themselves underwater. The American Distress Index tracks this dynamic through housing price indicators and the FHA delinquency rate, which reflects the distress concentrated among borrowers with minimal equity.
Frequently Asked Questions
How much does a home appraisal cost?
Standard single-family appraisals cost $300 to $600. Complex properties, multi-unit buildings, or properties in rural areas with few comparable sales can cost $800 to $1,500+. The borrower pays regardless of the outcome. The fee is typically collected at the time of application.
Can I challenge a low appraisal?
Yes — you can request a reconsideration of value (ROV) by providing the appraiser with additional comparable sales they may have missed. You cannot pressure the appraiser to change their opinion. If the ROV is unsuccessful, you may be able to request a second appraisal, though the lender is not required to order one.
What is an appraisal waiver?
Fannie Mae and Freddie Mac offer Property Inspection Waivers (PIW) on some refinances and purchases when their automated underwriting systems determine enough data exists to assess value without a physical inspection. This saves the borrower $300-$600 and speeds up the process.
How long is an appraisal good for?
Conventional appraisals are typically valid for 120 days, with a one-time update extending validity to 240 days. FHA appraisals are valid for 120 days with a 30-day extension available. If the appraisal expires before closing, a new one must be ordered.
Can the seller see the appraisal report?
The borrower receives a copy of the appraisal under the Equal Credit Opportunity Act (ECOA), typically at least 3 days before closing. The seller does not automatically receive the report but can request it from the buyer — or order their own appraisal independently.