The Quick Read: Start by reading the appraisal for factual errors, then ask your lender for a reconsideration of value backed by documented evidence. A reconsideration is a request, not a right, and many requests leave the value unchanged. If the value stands, you choose among renegotiating the price, bringing more cash, restructuring the loan, or walking away under your contract.
Key Takeaways
- A jumbo loan is sized from the lower of the purchase price or the appraised value, so a low value shrinks the loan at any given leverage.
- Unique homes come in low most often because comparable sales are thin and the adjustments are large.
- Evidence beats opinion. Closed sales, permits and receipts move a value. Disagreement does not.
- Your request goes through the lender or broker, never straight to the appraiser.
- If the value holds, the lever you pick depends on whether the problem is an error, thin comps, or an accurate low number.
Why Does a Low Value Hit a Jumbo Loan Harder?
Because a jumbo loan sits above the conforming loan limit, the lender or investor holding it applies its own appraisal standards. Value matters more, and the gap is bigger in absolute terms.
Jumbo payment estimate
The starting figures are an example price in the jumbo range with ten percent down on a thirty-year fixed. Replace them with yours.
Editable benchmark: 7.40% as of October 15, 2026 · Freddie Mac 30-year average via FRED®. A conventional market reference, not a jumbo loan quote.
Illustrative starting assumptions: a $1,000,000 price in the jumbo range, ten percent down on the top-leverage lane, a thirty-year fixed structure at the current Freddie Mac conforming benchmark, and property taxes and insurance estimated at typical national rates. Every field is editable.
Illustrative estimate only — not a Loan Estimate, approval, quote, or commitment to lend. The rate field carries the weekly Freddie Mac thirty-year conforming benchmark, a market reference and not a jumbo loan quote; jumbo rates are set by the lender and the lane at lock and differ from the conforming benchmark. An adjustable-rate scenario is shown at the benchmark for the whole term; the rate after the initial period is unknown. Reserve months and appraisal counts follow the lane sheet for the amount band; the automated finding may require more. Taxes, insurance and dues are editable estimates; closing costs are not included. On most lanes the conforming limit for the county decides whether a loan is jumbo at all; two lanes start at a stated dollar floor instead. Licensed in sixteen states for consumer mortgages.
Here is the mechanic. Leverage, also called loan-to-value (LTV), is measured against the lower of the price or the appraised value. Say you contract at a price and the appraiser concludes a value 5% below it. Your maximum loan is now figured on the lower number. The difference between what you planned to borrow and what the lender will now allow is the gap. You fill it with cash, a price cut, or a different structure.
Across the wholesale programs I place files with, leverage on the headline jumbo lane reaches 90%, and several lanes reach 89.99% combined LTV while the rest stop at 80%. Loans run up to $5,000,000 on the largest lanes. At those sizes, reserves rise with the loan amount, and above a lane’s threshold amount two appraisals are required. Those figures are subject to lender guidelines and full file review. Not a commitment to lend.
The practical point: a few percentage points of value on a large loan is a lot of cash. That is why the response needs a plan, not a complaint. If you are still comparing options, Lendmire’s jumbo loan programs page lays out how the lanes differ.
Why Do Unique Homes Come in Low?
Unique homes come in low because the appraiser has few true comparable sales to lean on. A custom build, an unusual architectural style, a large lot, or a one-of-a-kind view all make “similar” hard to define. Fewer comps means bigger adjustments, and bigger adjustments invite a conservative number.
The standard most jumbo appraisals follow comes from Fannie Mae’s Selling Guide, though individual jumbo investors may set their own rules. That guide says comparable sales should share similar physical and legal characteristics, including site, room count, finished area, style and condition. The appraiser decides which comparables are best.
When true comps are scarce, the guide lets appraisers reach further. They may use comparables from a competing market area when those are the best available. They may not stretch neighborhood boundaries to fit the comps. The report must say the comps come from a competing area and address the differences.
Now the adjustments. The appraiser corrects each comp for differences, such as size, finishes, lot, or view. Fannie Mae’s Selling Guide on adjustments sets no specific limits on net or gross adjustments. It requires them to reflect market analysis, not rules of thumb. If adjustments are large enough to suggest the home may not conform to its neighborhood, the underwriter must decide whether the value opinion is adequately supported.
So large adjustments are a flag for the underwriter. They are not an automatic failure. That distinction is where your evidence package goes to work.
Step 1: Read the Report Like a Skeptic
Get the full appraisal and read every page. Look for facts first, because facts are the easiest thing to fix.
| What to check | Why it matters | Evidence that fixes it |
|---|---|---|
| Square footage and room count | Drives price per square foot | Floor plan, prior permits |
| Bed and bath count | Directly adjusts value | Listing, county record, photos |
| Lot size and features | Land is a big piece of unique homes | Survey, plat |
| Age and condition | Affects adjustments | Dated renovation records |
| Missed upgrades | Unlisted improvements get no credit | Receipts, permits, invoices |
| Comp quality | Weak comps weaken the conclusion | Closed sales you can document |
Mark each item as a verifiable error, a judgment call, or an accurate low number. Only the first category is clean ground for a challenge.
Step 2: How Do You Build a Comp Package for a Unique Home?
A good comp package contains closed sales, not listings, and it explains why each sale is relevant. The appraiser did not use your comps? Then the question is whether yours are better, and you have to show it.
Work through this checklist:
- Closed sales only. Pending and active listings show asking prices, not what buyers paid.
- Available as of the effective date. Only information available then is usually considered. Policies differ by lender.
- Similar physical and legal traits. Match on site, style, finished area, condition and, for a unique home, the feature that makes it unique.
- Reasonable reach. Older sales, nearby competing neighborhoods and similar properties can all support a unique home, as the GSE guides allow.
- Verifiable sources. Fannie Mae’s guide requires that comp data from interested parties, such as an agent, be verified by a disinterested source. Give the lender documents, not opinions.
Add proof of improvements: receipts, permits, dated records. Skip adjectives like “stunning” or “one of a kind.” Appraisers adjust for measurable things.
Step 3: How Does a Reconsideration of Value Work?
A reconsideration of value (ROV) is a request from the lender to the appraiser to reassess the report. The Federal Reserve describes it as a request from the financial institution, so your evidence travels through your loan officer or broker. Do not email the appraiser.
The CFPB says homebuyers and homeowners can ask a lender to reconsider a valuation they believe is inaccurate. Valid grounds include factual errors or omissions, inadequate comparable properties, and evidence of prohibited bias. Processes vary by lender, but they must be nondiscriminatory and accessible to all.
Your outline for the request:
1. State the specific concern in one or two sentences.
2. List each factual correction with its document.
3. List the closed comparable sales, with why each fits.
4. Attach receipts, permits and dated records.
5. Send it through the lender’s stated channel and meet its deadline.
Keep expectations honest. An ROV is not a demand for a target value or a guaranteed second appraisal. The interagency guidance, published in the Federal Register, covers policies lenders may implement. It does not give every borrower a right to a revised value. Published success rates come from non-official sources and vary widely, and many requests do not change the value.
What Are Second Appraisals, Reviews and Dual Appraisals?
Three different things get confused here, so separate them.
- A review. The guidance describes lender actions such as resolving deficiencies with the appraiser or requesting a review by an independent, qualified state-certified or licensed appraiser. If deficiencies stay uncorrected, the appraisal cannot be used in the credit decision.
- A second appraisal you order. Whether a lender accepts one is the lender’s call. Ask before you pay for it.
- A dual appraisal requirement. On the wholesale jumbo lanes I work with, two appraisals are required above a lane’s threshold amount. That is the program’s rule, not your request. When two valuations differ, the lower of the two typically controls the loan size.
On a unique home, extra scrutiny is common. A lender may add a desk or field review when comps are thin. That is not a vote against you. It means your documented evidence will be read by more people, so make it clean.
If the Value Stands, Which Lever Do You Pull?
Pick the lever by diagnosing the problem. The right move for a report error is different from the right move for an accurate low value.
| Scenario | Best lever | Trade-off |
|---|---|---|
| Verifiable report error | ROV with documents | Depends on lender process |
| Thin comps, defensible value | ROV, then negotiate | Value may still not move |
| Accurate low value, purchase | Renegotiate price | Seller may refuse |
| Accurate low value, you have cash | Cover the gap | Thinner reserves |
| Accurate low value, flexible plan | Restructure the loan | Different terms and guidelines |
| Gap too large or no contingency left | Walk away if contract allows | Possible loss of deposit |
On a purchase, you usually have an appraisal contingency and a seller to talk to. A low value gives you leverage, because the next buyer faces the same appraisal. On a refinance, you have neither. Undervaluation can block homeowners from accessing accumulated equity, so your levers are the ROV, waiting, or a different valuation.
Covering the gap with cash has a jumbo-specific cost. Reserves on these programs are measured in months of the full payment and rise with the loan amount. Cash you spend on the gap is cash you may need to show as reserves. Check that before you commit.
Restructuring has a quirk too. A smaller loan could drop under your county’s conforming limit. Conforming and jumbo loans follow different guidelines, so a lower amount does not promise a better outcome. Look up your county’s figure in the FHFA county loan limit list.
A Worked Example
Consider a buyer purchasing a custom hillside home at a price near the top of the neighborhood. The buyer plans to borrow at 80% of the price. The appraisal comes back 6% below the contract price, with big adjustments for lot and architecture.
Here is the sequence:
1. The buyer checks the report. The lot size is correct. The finished lower level, permitted and documented, was left out of the square footage.
2. The buyer and agent gather the permit, the final inspection record and two closed sales of similar homes with finished lower levels.
3. The loan officer submits the package through the lender’s channel.
4. Two outcomes. If the value rises to include the lower level, the gap shrinks or closes. If it holds, the buyer uses the contingency to ask for a price reduction, since the loan is now sized to the lower value at the same 80% leverage. Exact terms depend on the lender’s guidelines, property type, leverage, and a full review of the borrower’s file.
The structure of that response matters more than the numbers. Fix the facts, prove the comps, then negotiate from evidence.
What About Timing and Deadlines?
Your contract has clocks. So do the lender’s rate commitment and your closing date. An ROV can run past one of them. Ask your loan officer on day one which deadlines apply and what happens if the review outlasts them. If an extension is needed, ask for it early and in writing. Lender processes vary, so no one can promise how long a review takes.
When Is a Unique Home Too Unique to Finance?
Rarely, but it happens. Fannie Mae’s guide treats a home as acceptable security when the appraiser can support sound adjustments and show marketability using older sales, competing neighborhoods or similar properties. If no market acceptance can be shown and a reliable value cannot be established, the home is not acceptable for sale to Fannie Mae.
Jumbo loans are held by portfolio lenders or sold to private investors, so those investors’ own eligibility rules apply. If your home is unusual, ask early whether the lender has a view on the property type. Tax treatment can depend on your situation; borrowers should speak with a qualified tax professional before relying on any deduction or credit.
Questions to Ask Your Lender
- Do you offer a reconsideration of value process, and what is the channel and deadline?
- Is there a limit on how many comparable sales I can suggest?
- Will you order a review if my evidence is strong?
- Does this loan amount trigger two appraisals?
- If the value drops, how does my leverage and reserve requirement change?
- Where do I file a complaint if I believe the appraisal reflects bias? Final terms depend on lender guidelines, property type, leverage, and the borrower’s complete credit picture.
Consumers who believe an appraisal was unfair or inaccurate can file an appraisal complaint with the lender or through the lender’s federal regulator.
Key Terms Defined
Jumbo loan: a mortgage above the county’s conforming loan limit.
Appraised value: the appraiser’s opinion of what the home is worth on a set date.
Reconsideration of value (ROV): a request, sent through the lender, asking the appraiser to reassess the report.
Comparable sale (comp): a recently closed sale of a similar home used to support the value.
Adjustment: a dollar correction an appraiser makes to a comp for differences from your home.
Loan-to-value (LTV): the loan amount divided by the lower of price or appraised value.
Reserves: liquid funds, counted in months of payments, that you keep after closing.
Frequently Asked Questions
Can I force a second appraisal?
No. An ROV is a request, and the lender decides what happens next. Some lenders will order a review or accept a second appraisal, and some will not. Ask your loan officer what the lender allows before you spend money.
Do I have to pay the gap if the appraisal is low?
Not necessarily. On a purchase, your contract’s appraisal contingency may let you renegotiate or exit. If you keep the deal, you cover the gap with cash, a lower price, or a restructured loan.
Will a challenge actually work?
It works best when you can show a verifiable error or better closed sales. Opinions rarely move a value. Many requests do not change it, so plan your next lever in parallel.
Do big adjustments sink the appraisal on a unique home?
No. Fannie Mae sets no net or gross adjustment limits. The question is whether the adjustments are supported by market analysis, and the underwriter decides whether the value is adequately supported.
Can a unique home still get a jumbo loan?
Yes, in many cases. The GSE guides allow older sales, competing-area comps and supported adjustments, subject to evidence of market acceptance. Individual jumbo investors set their own rules, so eligibility depends on the lender and full file review.
If you are buying a home and want to see whether a jumbo loan fits your file, Lendmire can help you compare the options and what each one asks of the file. For a related look at appraisal pressure on equity, see Lendmire’s piece How a Low Second Appraisal Cuts Jumbo Cash-Out on a Paid-Off Home.
For your own numbers, request a scenario review with Lendmire.
About Lendmire
Lendmire is a mortgage brokerage (NMLS# 2371349) licensed for consumer mortgage lending in 16 states, arranging FHA, VA, conventional and jumbo purchase and refinance loans through a wholesale lending network. Eligibility is determined by the lender on each file. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.
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References
1. Fannie Mae Selling Guide: Adjustments to Comparable Sales
This article is part of Lendmire’s jumbo loan program — full qualification details, guidelines, and scenarios live on the program page.
Related reading: How to Refinance a Second Home Jumbo Loan Step by Step · How to Handle a Low Appraisal on a New Construction Jumbo Loan · How a Low Appraisal Resizes a New Construction Jumbo Loan Down Payment
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
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Compliance and disclosures. Lendmire (NMLS# 2371349) is a licensed mortgage broker and is not a direct lender, depository institution, financial advisor, or tax professional. Content in this article is general market analysis and educational information — not financial, legal, or tax advice for any specific situation. Lendmire does not guarantee loan approval; every transaction is subject to underwriting by the funding lender. Mortgage pricing and loan program guidelines are subject to change at any time without notice and vary by borrower characteristics, property type, and state regulations. Lendmire complies with Equal Housing Opportunity. Licensure verification: NMLS Consumer Access.