Whether you're buying, selling, or refinancing a home in Washington State, a home appraisal is one of the most consequential steps you'll encounter. It can validate a deal, reshape the numbers, or give you the leverage you need at a critical moment. Here's what you need to know.

What is a home appraisal?

A home appraisal is a formal, third-party assessment of a property's value. A licensed appraiser evaluates the home and produces a written report stating its market value as of a specific date. This isn't an estimate or a seller's gut feeling. It's a structured analysis grounded in comparable home sales, local market conditions, and professional standards.

The central question a home appraisal answers is: what would a willing buyer pay a willing seller for this property in today's market, with neither party under pressure and both acting with full information? That's the definition of fair market value, and it's what lenders, buyers, and sellers all need confirmed before a transaction closes.

Home inspection vs. home appraisal

These two terms come up together so often that they're easy to confuse. They serve very different purposes.

A home inspection evaluates the physical condition of the home. A licensed home inspector examines the roof, foundation, plumbing, electrical, and HVAC to find defects and flag needed repairs. The inspector asks: what needs fixing?

A home appraisal evaluates the value of a home. A licensed appraiser determines what the property is worth based on comparable homes and current market data, not what's broken. The appraiser asks: what is this worth?

Both are essential steps in the home-buying process, but they protect different interests and answer different questions.

Why home appraisals matter

A home appraisal is one of the most important financial safeguards in any real estate transaction. When hundreds of thousands of dollars are on the line, everyone involved needs assurance that the agreed-upon price reflects market reality.

For the lender: When a mortgage lender extends a home loan, the property is the collateral. If the borrower defaults, the lender must be able to recover what they lent by selling the home. That's why no mortgage lender will finance more than the home's appraised value. If you agree to pay $500,000 for a home and a licensed appraiser determines the value of the property is $450,000, the lender will only finance based on $450,000. The gap becomes the buyer's problem to resolve.

For homebuyers: The appraisal protects against overpaying. In competitive markets like the Seattle metro, where bidding wars can push prices above what comparable homes have actually sold for, the appraisal acts as a reality check. If it comes in low, buyers gain documented leverage to renegotiate or exit the deal.

For sellers: A strong appraisal validates the purchase price and gives the buyer's mortgage lender confidence to proceed. It reduces the risk of last-minute renegotiations or a deal falling apart close to closing.

How the home appraisal process works

Ordering and cost

In most purchases, the mortgage lender orders the appraisal after the purchase agreement is signed and the loan application is underway. Lenders typically assign a licensed appraiser through an Appraisal Management Company (AMC), which keeps the appraiser independent from the lender, buyer, and seller.

The buyer pays the appraisal fee as part of their closing costs. Home appraisal cost for a standard single-family home typically runs between $300 and $600 — a full breakdown of what goes into Washington State closing costs can help you plan for these and other fees before you get to the table.

The appraiser visits the property

When the appraiser visits, they conduct a thorough walkthrough: measuring square footage, photographing interior and exterior, evaluating the condition of the home, and noting renovations, upgrades, and features that affect the home's market value. This on-site visit typically takes one to three hours.

Comparable homes research

After the visit, the appraiser researches comparable homes — similar properties that have sold recently in the same area. These recent home sales form the backbone of the valuation. Strong comps are within the last six months, close in proximity, and similar in size, age, and condition.

Adjustments and the final report

No two homes are identical, so the appraiser adjusts the sale prices of comparable homes to account for differences. If a comp had a renovated kitchen the subject property lacks, the appraiser lowers that comp's adjusted price. If the subject property has a finished basement that similar properties don't, an upward adjustment is made.

These adjustments produce the appraisal report: a detailed document that shows the methodology, the comparable homes used, each adjustment, and the appraiser's final opinion of the home's market value.

Types of home appraisals

Not every appraisal requires a full in-person visit.

Full appraisal: The standard approach. The licensed appraiser conducts a complete interior and exterior inspection and produces a detailed report. Required for most conventional, FHA, and VA loans.

Drive-by appraisal: An exterior-only evaluation. The appraiser assesses the outside of the home and relies on public records and MLS data for interior details. Sometimes used for certain refinancing products.

Desktop appraisal: No in-person visit. The appraiser works entirely from public records, listing photos, and MLS data. Became more common after 2020 and may be permitted for lower-risk refinancing situations where property data is readily available.

Your mortgage lender will specify which type is required based on the loan program and the specifics of your transaction.

What appraisers look for

Location: The single most significant factor in any home's value. School district quality, proximity to employment and amenities, neighborhood desirability, and local market trends all play a major role. In Washington, a home in a top-rated school district in Kirkland or Bellevue will appraise differently from a comparable home a few miles away, even with an identical floor plan.

Property characteristics: Square footage (above-grade living space weighted most heavily), number of bedrooms and bathrooms, age and overall condition of the home, quality of construction, renovations and upgrades, special features like fireplaces or covered decks, and curb appeal and landscaping. The appraiser distinguishes between cosmetic updates and meaningful capital improvements — a fresh coat of paint moves the needle far less than a full kitchen renovation.

Comparable homes and recent sales: The sales comparison approach is the primary valuation method for residential properties. The appraiser identifies comparable homes with recent home sales and adjusts for differences between those properties and the subject home. Similar properties that closed within six months and within a close geographic radius carry the most weight.

Market conditions: Supply and demand dynamics, interest rates, and local home sales volume all inform how the appraiser contextualizes the data. Washington's Puget Sound market has historically been supply-constrained and competitive, which appraisers factor into their analysis of recent comparable sales.

What if the appraisal comes in low?

A low appraisal — where the home's appraised value falls below the agreed-upon purchase price — doesn't automatically end a deal. You have options.

Negotiate the price: The buyer has clear leverage. The mortgage lender won't finance above the home's appraised value, so sellers often prefer to lower the price rather than lose the deal and face the same outcome with the next buyer.

Cover the gap: If the buyer wants the home and has the cash, they can pay the difference between the purchase price and the home's appraised value out of pocket. The lender finances up to the appraised value; the buyer covers the rest at closing.

Use the appraisal contingency: Most purchase agreements include a clause allowing the buyer to exit the contract without losing their earnest money if the appraisal comes in low and no resolution can be reached. Understanding exactly how this protection works — and how it relates to your other contract terms — is worth reading up on before you're in that situation. A solid primer on what a financing contingency covers can help clarify how these clauses interact.

Request a reconsideration of value: If there's a factual basis for questioning the appraisal, the buyer or lender can submit a formal reconsideration of value (ROV) with specific evidence: comparable homes that were overlooked, factual errors in the report, or recent home sales not included in the analysis. A drive-by appraisal or desktop appraisal that failed to capture the actual condition of the home may also support a full review request.

Tips for sellers and buyers

Sellers: Before the appraiser visits, prepare a home information packet listing all renovations and upgrades with dates and approximate costs, along with permits for major work and any energy-efficient improvements. Make sure every area of the home is accessible. Address obvious maintenance items — the condition of the home matters to the valuation even though it's not a home inspection.

Buyers: Confirm your purchase agreement includes an appraisal contingency. Know what you'd do if the appraisal comes in short before you're in that situation. Once you receive the appraisal report, review it for factual errors in the property description and the comparable homes selected. Working with experienced real estate professionals who know the local market makes a real difference when navigating a difficult appraisal. Every Door Real Estate's team works with buyers and sellers across Washington and can help you prepare, respond, and negotiate when it matters most.

The appraisal's role in refinancing and home equity

Home appraisals aren't only for purchases. When homeowners refinance, the mortgage lender typically requires a new appraisal to determine the current value of the home. The home's appraised value affects the loan-to-value ratio, which determines whether you qualify to refinance, what interest rate you'll receive, and whether PMI can be removed. A strong appraisal can also open the door to a home equity loan or unlock access to built-up home equity — and if you're curious where your home stands today, getting a current estimate of your home's value is a smart first step before starting the refinancing conversation.

Key takeaways

1. A home appraisal establishes the home's market value through a structured, data-driven process — not guesswork.
2. It protects mortgage lenders from over-lending, homebuyers from overpaying, and sellers from late-stage deal collapses.
3. The home appraisal process includes an appraiser visit, comparable homes research, adjustments, and a formal appraisal report.
4. Types vary: full appraisals, drive-by appraisals, and desktop appraisals each suit different loan types and situations.
5. A low appraisal has solutions: renegotiate the price, cover the gap in cash, use your appraisal contingency, or submit a reconsideration of value with solid evidence.
6. Whether buying, selling, or refinancing, understanding the home appraisal process puts you in a stronger position at every step.