When a first-time buyer makes an offer on a home, they compete not just against other families but against investors who pay cash and close in days. The appraisal that follows often seals the deal—or breaks it. Since 2020, a quiet shift in how appraisers select comparable sales has tilted the field. Investors benefit. First-time buyers pay more or walk away. This is the story of that bias, who profits from it, and what a fairer standard might look like.

The Appraisal Gap That Costs First-Time Buyers

Imagine you offer $350,000 on a three-bedroom house in a suburban subdivision. The seller accepts. Then the appraisal comes back at $335,000. Your lender will only lend based on the lower number, so you need an extra $15,000 down—plus you still owe the full purchase price if the seller won't budge. That gap is not random. It often happens because the appraiser used recent sales of investor-owned properties that were bought at a premium and resold quickly to other investors. Those comps are not like your transaction, but they are the ones that get used.

Investors routinely pay above asking to secure properties in hot markets. They can do so because they are not constrained by mortgage underwriting. Their cash offers set a new price floor. When an appraiser pulls those sales as comparables, the valuation model treats them as the market norm. Yet the same appraiser may overlook owner-occupied sales that closed at lower prices, because those transactions are older or less frequent in the multiple listing service.

The result is a systematic upward bias in appraised values for investor-heavy areas and a corresponding penalty for first-time buyers. The buyer's offer looks weak against the comps, even though their purchase would be a true owner-occupied transaction. The appraisal gap forces them to bring more cash to closing, take out private mortgage insurance, or walk away. Data from Redfin and Zillow, as of late 2024, showed that in metro areas with high institutional buying, the spread between contract price and appraised value was 5–8% wider for first-time buyers than for repeat buyers or investors.

This is not a case of bad appraisers. It is a structural feature of how comparables are selected. When the pool of comps tilts toward investor sales, the appraisal becomes a tool that reinforces investor pricing rather than reflecting what a family home is worth to a family buyer.

Consider a concrete example from the Atlanta metro area, where institutional investors have been particularly active. In a 2023 transaction, a first-time buyer offered $410,000 on a three-bedroom ranch in Decatur. The appraiser used three comparables: two were investor flips that sold within 30 days at $415,000 and $420,000, and one was an owner-occupied sale from six months earlier at $395,000. The appraised value came in at $408,000, creating a $2,000 gap that the buyer had to cover. The investor comps were chosen because they were recent and geographically close, but they reflected a different buyer profile—one with no financing contingency and a willingness to pay a premium for quick close. The buyer's agent later found two owner-occupied sales within a half-mile that had closed at $400,000 and $402,000, but those were not used. The appraiser's justification: the investor sales were more recent. That logic, while technically compliant with guidelines, systematically disadvantages first-time buyers.

How the Valuation Rule Shifted After 2020

In 2020, the pandemic upended housing markets. To keep transactions moving, Fannie Mae and Freddie Mac—the government-sponsored enterprises (GSEs) that back most U.S. mortgages—relaxed their appraisal standards. They allowed more desktop and automated valuations. They also loosened the requirement that comparables be “similar” in property type, location, and transaction characteristics. The stated goal was speed and volume.

What followed was a gradual but persistent shift in appraisal practice. Appraisers, under pressure from appraisal management companies to deliver fast reports, began using a broader set of comparables. Investor sales—which often close faster and appear in the public record sooner—became a default choice. A 2021 study by the Federal Housing Finance Agency (FHFA) noted that the share of appraisals using at least one investor comp rose by roughly 12 percentage points in the first two years of the pandemic.

The temporary flexibilities were supposed to expire, but many became permanent. In 2022, the GSEs made the desktop appraisal option standard for certain loan types. Industry groups representing appraisers and lenders lobbied for flexibility, arguing that strict comparability rules slowed down markets. The regulatory guidance never explicitly addressed the bias that could result from relying on investor comps. The assumption was that the market would self-correct.

It did not. By 2024, the National Association of Realtors reported that the investor share of home purchases had climbed to roughly 19% nationally, up from 13% in 2019. In Sun Belt markets like Atlanta, Phoenix, and Tampa, the share exceeded 25%. The comp chain became increasingly circular: investors bought from investors, appraisers used those sales, and the valuations justified the next round of investor purchases.

One might argue that the market is simply reflecting true demand—that investors are willing to pay more, so that is the fair market value. But this reasoning conflates two different markets. The market for investor-owned rentals and the market for owner-occupied homes have different fundamentals. Investors value properties based on rental income and appreciation potential, while families value proximity to schools, commute times, and neighborhood stability. Using investor comps for an owner-occupied appraisal is like using wholesale prices to value a retail transaction. The two are related but not interchangeable.

Furthermore, the shift was not uniform across all regions. In some parts of the country, such as the Midwest and Northeast, investor activity remained modest, and the bias is less pronounced. But in the Sun Belt, where housing affordability is already stretched, the appraisal gap is a measurable barrier to homeownership for first-time buyers. This geographic variation complicates any one-size-fits-all policy response, but it also highlights where reform is most needed.

Follow the Money: Who Benefits from the Gap

Lenders profit from larger loan amounts when appraisals come in higher. On an investor property, a higher valuation means a bigger mortgage and more origination fees. Some lenders have even marketed “appraisal gap coverage” products that effectively insure the gap, but those products add cost for the buyer. The lender's interest is not aligned with a low, accurate appraisal.

Appraisal management companies (AMCs) also have incentives that work against accuracy. AMCs are paid per appraisal, and they often assign work to the lowest-cost appraiser who can turn around a report fastest. Speed favors using readily available investor comps over digging for older owner-occupied sales. The appraiser may not even know the buyer's intent. The form asks for “comparable sales,” not “owner-occupied comparable sales.”

The secondary market absorbs the risk. When a loan backed by an inflated appraisal is sold to Fannie Mae or Freddie Mac, the taxpayer ultimately bears the default risk if the property's true value is lower. But that risk is diffuse and long-term. In the short term, everyone in the transaction chain—lender, AMC, real estate agent, seller—benefits from a higher number. The first-time buyer is the only party who loses.

This dynamic is not new, but it has intensified. A 2025 analysis by the Urban Institute found that first-time buyers in investor-heavy ZIP codes paid an average of 3.5% more in total housing costs over the first five years of ownership, driven largely by higher down payments and mortgage insurance. The investor bias in appraisals acts as a hidden tax on entry.

There is a counter-argument: higher appraisals also benefit sellers, and many first-time buyers eventually become sellers. But that logic ignores timing. A first-time buyer who overpays today may not sell for five to ten years, and in the meantime, they face higher monthly costs and reduced equity. Moreover, if the market corrects, they could be underwater. The bias is not a net gain; it is a transfer of wealth from entry-level buyers to investors and intermediaries.

Regional Hotspots Where the Bias Bites Hardest

The appraisal gap is not uniform. It concentrates in markets where institutional investors have the largest footprint. Atlanta, Georgia, is a prime example. In 2024, investors accounted for roughly 30% of single-family home purchases in the metro area, according to data from CoreLogic. Appraisals in Atlanta ZIP codes with high investor activity showed a median spread of 6.2% between contract price and appraised value for first-time buyers, compared to 2.1% for repeat buyers.

Phoenix and Tampa show similar patterns. In Phoenix, the investor share of purchases hit 28% in 2023, and local assessor records confirm that investor-owned properties sold at a premium of 8–10% over comparable owner-occupied homes. Appraisers in those markets frequently cite investor sales as comps, even when the property being appraised will be owner-occupied. The result is that a first-time buyer in a Phoenix suburb may need to bring an extra $20,000 to closing, not because the house is worth more, but because the comps are from a different buyer class.

These are not isolated anecdotes. A 2024 report from the Consumer Financial Protection Bureau flagged appraisal disparities in investor-heavy markets, noting that the share of appraisals falling below contract price had risen by nearly 50% in such areas since 2020. The report stopped short of calling it bias, but the pattern is clear.

To illustrate with another example: in Tampa, a first-time buyer in 2024 offered $380,000 on a two-bedroom bungalow near downtown. The appraiser used three comps: two were investor purchases that closed at $385,000 and $390,000 within the past month, and one was an owner-occupied sale from four months earlier at $370,000. The appraised value came in at $383,000, leaving a $3,000 gap. The buyer had to use an appraisal gap clause to cover the difference, adding to their upfront costs. The investor comps were all-cash deals with no contingencies, while the buyer's offer had a financing contingency. The appraiser did not adjust for the cash premium, which can be roughly 5–10% in competitive markets.

The geographic concentration matters for policy. A national rule change would affect markets differently. In the Northeast and Midwest, where investor activity is lower, the bias is less pronounced. But in the Sun Belt, where housing affordability is already stretched, the appraisal gap is a measurable barrier to homeownership for first-time buyers.

What a Fair Appraisal Standard Would Look Like

A first step would be to require that at least 50% of comparables in an appraisal come from owner-occupied transactions. This is not a radical idea. It simply restores the pre-2020 norm that the GSEs relaxed. The Uniform Appraisal Dataset could be updated to flag the proportion of investor comps and require a justification when that proportion exceeds a threshold.

A second step would be to adjust for the cash-buyer premium. When an investor pays cash, they typically pay a premium of 5–10% over financed buyers, because of the speed and certainty of closing. Appraisers could apply a downward adjustment to investor comps to reflect what a financed buyer would pay. This is not standard practice today, but some appraisers do it informally.

Third, the appraisal form itself could be revised to disclose investor comps separately. Today, the form lists comparable sales without identifying the buyer type. Adding a checkbox or field for “investor purchase” would give underwriters and borrowers visibility into the comp selection. Transparency alone would not fix the bias, but it would make it harder to ignore.

The FHFA, which oversees Fannie Mae and Freddie Mac, could mandate these changes through the GSEs. The agency has signaled that it is reviewing appraisal standards in 2026. The Bank of England's Financial Policy Committee has also flagged housing stability risks from investor concentration, as noted in its July 2026 record. The regulatory window may be open.

Opponents of such rules argue that they could slow down transactions and increase costs. For instance, requiring appraisers to search harder for owner-occupied comps could delay report delivery, potentially causing deals to fall through in fast-moving markets. There is also a concern that in neighborhoods with very few owner-occupied sales, appraisers might struggle to find enough comps, leading to less accurate valuations. However, these challenges can be addressed through reasonable exceptions—for example, allowing a lower threshold in low-turnover areas—and by investing in better data systems. The trade-off is between a small increase in transaction time and a significant reduction in bias against first-time buyers.

Practical Steps First-Time Buyers Can Take Now

Until rules change, buyers can take steps to push back. When making an offer, ask your agent to request an appraiser with experience in owner-occupied valuations. Some lenders maintain lists of appraisers who specialize in first-time buyer transactions. You can also provide your own comps—recent sales of similar homes that were bought by families, not investors—to the appraiser before the inspection.

If the appraisal comes in low, your lender can challenge it. The process is called a reconsideration of value (ROV). You will need data: at least two comparable sales that were not used in the original report, ideally owner-occupied and closed within the past 90 days. The lender is not required to accept an ROV, but many will if the evidence is strong.

Consider including an appraisal gap clause in your offer, but negotiate the cap. A clause that covers the gap up to a fixed amount—say $10,000—can make your offer competitive without exposing you to unlimited risk. Some buyers are now using “gap coverage” products that function like insurance, but read the fine print: they often come with fees that eat into your equity.

Work with a real estate agent who tracks investor activity in the neighborhood. If you know that 30% of recent sales in the ZIP were to investors, you can adjust your offer strategy and prepare for a potential low appraisal. The more you know about the comp pool, the less you will be surprised by the valuation.

Another tactic is to ask the seller for a copy of the appraisal they may have ordered if they are also buying another property. Some sellers will share it, and you can see what comps were used. If the comps are heavily investor-oriented, you can prepare a rebuttal before your own appraisal. Also, consider getting a pre-listing appraisal from an appraiser who understands owner-occupied valuation. While it costs a few hundred dollars, it can give you leverage in negotiations.

The Regulatory Window That May Not Stay Open

The FHFA's review of appraisal standards in 2026 is the most promising opportunity for reform. The agency has the authority to require owner-occupied comps, mandate adjustments for cash premiums, and improve disclosure. Political will exists: both parties have expressed concern about housing affordability for first-time buyers, and investor concentration is a rare issue that draws criticism from left and right.

But the window may close. Industry groups have already begun lobbying to preserve flexibility. The Appraisal Institute has argued that strict rules could slow down transactions in hot markets. Mortgage bankers warn that higher compliance costs could be passed on to borrowers. The debate is framed as speed versus accuracy, but the real trade-off is between investor convenience and first-time buyer access.

The investor share of purchases remains near record highs. If the FHFA does not act, the bias will persist. If it does act, the change could shift billions of dollars in mortgage volume away from investor-flipped properties and toward owner-occupied homes. That would not solve the affordability crisis, but it would remove one hidden barrier that first-time buyers face every day.

In the meantime, buyers should arm themselves with data and advocate for themselves. The system may be tilted, but knowledge is a powerful counterweight. By understanding how appraisals work and where the bias hides, first-time buyers can navigate the gap and still achieve homeownership.

This article is for informational purposes only and does not constitute personalized financial or real estate advice. Consult a qualified professional for your specific situation.