Published: 04-10
The Home Appraisal Process: How It Works and What If It Comes In Low
A home appraisal is an independent estimate of a property's market value, ordered by the lender to confirm the home is worth the price you agreed to pay. It protects the lender from lending too much and protects you from overpaying. This guide walks through the process and, crucially, what to do if the number comes in low.
Who Orders and Pays
The lender orders the appraisal from a licensed, independent appraiser (often through an appraisal management company to avoid bias). As the borrower, you typically pay the fee at closing or upfront — usually $400 to $700, more for complex or distant properties.
How Value Is Determined
The appraiser uses the sales comparison approach: recent sales of similar nearby homes (comps), adjusted for differences in size, condition, and features. They also consider the cost to rebuild and, for investment property, the income approach. The result is a single "opinion of value."
The Appraisal and Your Loan
| Result | What Happens |
|---|---|
| Appraises at/above price | Loan proceeds normally |
| Comes in low | Loan is based on the lower value; you must cover the gap or renegotiate |
What If the Appraisal Is Low?
If the home appraises below the purchase price, the lender will only finance based on the appraised value. Your options:
- Renegotiate the price with the seller to match the appraised value.
- Cover the gap in cash (bigger down payment on the lower value).
- Dispute with better comps — your agent can submit a rebuttal.
- Order a second appraisal, if the loan program allows.
- Walk away, if your contract has an appraisal contingency.
Low Appraisal Example
Price $400,000, 20% down expected on $400k. Appraisal $380,000. The loan now sizes to $380k, so instead of $80k down you need $76k down plus the $20k gap — $96k total, or you renegotiate to $380k.
The Appraisal Contingency
Your purchase contract should include an appraisal contingency letting you exit or renegotiate if the value falls short. Waiving it (common in hot markets) means you are on the hook for the gap in cash. Know what you are giving up.
How to Support a Higher Value
Provide your agent a list of strong recent comps, note upgrades (new roof, remodel) with receipts, and point out unique features. The appraiser must consider relevant data; a well-documented rebuttal sometimes moves the number.
Appraisal vs Inspection
An inspection checks condition and safety; an appraisal checks value. You can love the inspection and still face a low appraisal. Both protect different interests and neither replaces the other.
Drive-By and Desktop Appraisals
Not every loan needs a full interior appraisal. A desktop appraisal relies on public data and photos without a visit; a drive-by (exterior-only) confirms the home exists and its condition from outside. These are common for refinances or low-risk purchases and are cheaper and faster. For a purchase with a small down payment, a full appraisal is more typical, but do not assume the most expensive option is required.
The Uniform Residential Appraisal Report
The standard report documents the subject home, three comparable sales, and an adjusted value conclusion, with photos and maps. You are entitled to a copy. Reading it shows exactly which comps supported the number and how differences (garage, square footage) were adjusted — useful if you plan a rebuttal. The report is the appraiser's evidence, not a mystery number.
Appraisal Waivers (ACE)
Some low-risk refinances and even purchases qualify for an appraisal waiver through the lender's automated underwriting, meaning no appraisal is ordered at all. Waivers speed closing and save the fee, but you lose the independent value check — fine when refinancing, but for a purchase you may still want your own valuation to avoid overpaying. Understand what you are giving up before accepting a waiver.
Multiple Offers and Value
In competitive markets, the contract price may run ahead of recent comps, and the appraisal can come in low, creating a gap. Sellers sometimes price to attract a bidding war, and the winning bid may exceed supportable value. If you are the buyer, know your walk-away number and whether your contract protects you. The appraisal is the market's reality check on an emotional price.
Worked Example
Contract $420,000, comps support $405,000. The lender funds on $405,000, so a 20% down buyer expecting $84,000 down now needs $81,000 down on the lower value plus the $15,000 gap — $96,000 total, or must renegotiate to $405,000. A strong rebuttal with two newer comps at $418,000 might lift the value and close the gap. The comps you supply can change the outcome.
Preparing for the Appraiser
Though the appraiser judges value, not cosmetics, a clean, well-maintained home and a list of upgrades with dates and costs helps them credit improvements. Mow, declutter, and fix obvious defects before the visit. Provide the list of upgrades and any permits; a well-documented home reduces the chance of an undervalue based on missing information.
Who Chooses the Appraiser
By law the lender (through an appraisal management company) selects the appraiser, not you, to avoid pressure on the value. You can provide comparables and property information, but you cannot pick the appraiser or negotiate the number directly. This independence protects the loan's integrity. Your leverage is supplying accurate, documented data — not influencing the person — so prepare a clean, evidence-backed package for your agent to submit.
The Cost of a Low Appraisal
A low appraisal does not just affect your loan; it can unravel a deal if the contract lacks protections. Sellers may resist renegotiating, buyers may lack cash for the gap, and emotions run high. The appraisal contingency is your safety valve — without it, a low number can cost you the home and your deposit. Always include contingencies calibrated to your risk tolerance, especially in frothy markets where contract prices outrun recent sales.
Rebuttal Letters That Work
A strong rebuttal lists three to five truly comparable sales the appraiser may have missed, with notes on why they beat the chosen comps (same model, closer date, similar upgrades). Attach permits and photos. Vague complaints fail; specific, documented comps sometimes move the value. Your agent should prepare this promptly, because there is a limited window to submit it. A well-built rebuttal is the practical fix for a low-but-wrong number.
Appraisal Waivers for Refinances
On a refinance with a strong payment history and low risk, automated underwriting may grant an appraisal waiver, saving the fee and time. You lose the independent value check, but for a refinance that is usually fine — you are not setting a purchase price. Accepting a waiver can speed your close by days; just remember you are relying on the system's valuation rather than a fresh look at the home.
The Appraisal and Your Down Payment
When the appraisal is low, your down-payment math changes because the loan sizes to the lower value. A buyer expecting 20% down on the price may suddenly be under 20% on the appraised value, triggering PMI they did not plan for. This hidden effect catches many buyers; model your down payment and PMI both at the price and at a conservative appraised value so a low number does not also saddle you with insurance.
Waiving the Appraisal Contingency
In multiple-offer markets, buyers sometimes waive the appraisal contingency to win the bid, agreeing to cover any gap in cash. This is a calculated risk: if the home appraises low, you must bring the difference or lose the deal. Only waive it if you have the cash to cover a plausible gap and truly love the home. Waiving it to stretch into a home you cannot cash-fund is how buyers get trapped.
The Appraiser's Qualifications
State-licensed or certified appraisers must meet education, experience, and continuing-education standards, and they follow the Uniform Standards of Professional Appraisal Practice. They are trained to be independent, which is why neither you nor the lender can pick or pressure them. Their credibility rests on objectivity; a sloppy or biased report harms their license. Trust the process: the appraiser's job is an honest value opinion, not a number that pleases either side of the transaction.
Appraisal and the Purchase Contract
The contract price is one data point, not the value. An appraiser considers it but weighs comparable sales more heavily; a contract can exceed supported value in a bidding war, producing a low appraisal. The contract does not set the number — the market does. Understanding this prevents the false belief that a signed contract guarantees the value; only the comps do, and that is what protects both lender and buyer from overpaying.
Reconsideration of Value
If the appraisal seems low, your agent can submit a reconsideration of value with better comps, corrections, or omitted features (a renovated kitchen, a permit). The appraiser may revise the opinion if the evidence is strong. A vague complaint fails; a documented one sometimes moves the number. This formal process is the legitimate fix for a defensible-but-wrong value and is worth pursuing before you renegotiate or walk.
Appraisal for New Construction
For a newly built home, the appraisal may use the contract price as a "comp" when few nearby sales exist, or compare to other new builds and speculative values. The appraiser still checks the home's features against the price. If the builder's price exceeds supportable value, the lender funds on the lower figure. New construction appraisals can be smoother when the market is rising but tighter when comps lag — know which environment you are building in.
Appraisal and Market Velocity
In a fast-rising market, recent comps may lag the current price, and appraisals can come in low even for fairly priced homes — a lag, not a mistake. Sellers and buyers should expect this in hot markets and build contingencies or cash buffers accordingly. Supplying the appraiser with the very latest pending sales (not just closed) can help close the gap, because pending deals reflect current values better than closed ones that are weeks old.
The Cost of a Second Appraisal
If the first appraisal is low and you dispute it or switch lenders, a second appraisal means a second fee, usually non-refundable. Before paying for another, exhaust the reconsideration path on the first, since a successful rebuttal is cheaper than a new report. A second appraisal makes sense if the first was clearly flawed or a new lender requires it, but weigh the cost against the likely value change before spending again.
Frequently Asked Questions
Can I see the appraisal?
Yes. Under the Dodd-Frank rules you are entitled to a free copy of the appraisal report from your lender promptly after it is completed.
Will a low appraisal hurt my credit?
No. An appraisal is not a credit event. It affects the loan terms or the deal, not your score.
How long is an appraisal valid?
Typically about 90 to 120 days; if your closing is delayed past that, the lender may require a new one or a desktop update.