Property Essentials

What Drives a Home's Appraised Value — and What Doesn't

Real Estate Editorial Team

8 min read · Jul 25, 2026

What Drives a Home's Appraised Value — and What Doesn't

In This Article

Appraisers weigh specific factors when valuing a home. Find out which improvements move the needle and which rarely do.

Key Takeaways

Location, lot size, square footage, and condition are among the most influential factors in an appraisal.
Cosmetic improvements like fresh paint rarely add appraised value, but deferred maintenance can subtract it.
Appraisers rely heavily on recent comparable home sales in the same area, not owner estimates.
Unpermitted additions or renovations can actually reduce a home's appraised value.
Appraised value differs from both assessed value and market listing price — each serves a different purpose.

How Appraisers Determine Value

When a licensed appraiser evaluates your home, they are not guessing — they are applying a structured methodology. The most widely used approach is the Sales Comparison Approach, in which the appraiser identifies recently sold homes nearby (called comparable sales or "comps") and adjusts your home's value up or down based on differences in features, size, condition, and location.

Appraisers consider factors such as:

Location: Neighborhood quality, proximity to schools, amenities, and employment centers
Gross living area (GLA): The total finished, above-grade square footage
Lot size and usability
Age and condition: Structural integrity, roof condition, HVAC systems, plumbing, and electrical
Bedroom and bathroom count
Garage and storage
Recent updates: Kitchen, bathrooms, windows, and mechanical systems

The appraiser's goal is to identify what an informed buyer would pay for the home in an arm's-length transaction — not what the seller hopes to receive.

~5%

Typical value added by a minor kitchen remodel

Research from the National Association of Realtors and Remodeling Magazine's Cost vs. Value reports has historically shown that minor kitchen remodels recoup a fraction of their cost in resale value.

Top 3

Factors appraisers weight most heavily

Location, square footage, and overall condition are consistently cited as the primary drivers of appraised value across standard residential appraisal methodology.

120 days

Typical validity window for a mortgage appraisal

Most conventional mortgage lenders require a new appraisal if more than 120 days have passed since the original report, as market conditions can change.

What Genuinely Moves the Needle

Certain improvements and characteristics consistently influence appraised value because they affect livability, safety, or direct comparability with other sold homes.

Square Footage and Layout

Finished, above-grade square footage is one of the most heavily weighted variables. Appraisers assign a per-square-foot adjustment based on local comp data. Finished basement space is typically valued lower than above-grade space, since buyers and appraisers in most markets treat it differently.

Structural and Mechanical Condition

A home with a failing roof, aging HVAC, or electrical issues will see those deficiencies reflected in the appraisal — either as direct value deductions or as required repairs. Deferred maintenance signals risk to both lenders and buyers. Addressing genuine repair needs before an appraisal is one of the more straightforward ways owners can avoid downward adjustments.

Permitted Additions and Renovations

Improvements made with proper permits and meeting local building codes count toward livable square footage and are recognized as legitimate upgrades. Unpermitted additions — a converted garage, an added bathroom without permits — may not be counted in GLA and could create liability concerns that actually reduce value. For more on what inspectors flag, see our guide on navigating a home inspection.

Comparable Local Sales

Perhaps the single most important driver is what other similar homes have actually sold for nearby and recently. No matter how much you improve your property, the local market sets a ceiling. A home in a neighborhood where comparable homes sell for $280,000 will face a significant challenge appraising above that range regardless of finishes.

What Rarely Affects Appraised Value

Homeowners are sometimes surprised to learn that certain investments they made have little effect on appraised value.

Focus on Condition Before Cosmetics

If you are preparing for an appraisal, prioritize fixing genuine deficiencies — a damaged roof, non-functioning HVAC, or faulty plumbing — over decorative upgrades. Appraisers are trained to identify condition issues that represent real costs to future owners, and those concerns carry measurable weight in the final report. Cosmetic improvements rarely generate equivalent returns.

Cosmetic Upgrades

Fresh paint, new light fixtures, updated hardware, and landscaping generally do not generate direct dollar-for-dollar returns in an appraisal. They can make a home more appealing to buyers and prevent an appraiser from noting poor condition, but they are unlikely to add thousands in value on their own.

Personal Taste and High-End Finishes

A $50,000 custom kitchen in a neighborhood of $250,000 homes is unlikely to return that investment in appraised value. Appraisers are constrained by market data — they cannot assign value the local market does not support. This is sometimes called "over-improvement."

Sentimental or Emotional Value

A home's history, the memories it holds, or the owner's attachment to it carry no weight in a formal appraisal. Appraisers assess market value — what an unrelated buyer would pay — not personal significance.

Original Purchase Price

What you paid for the home has no bearing on what an appraiser determines it is worth today. Markets move in both directions, and purchase price is considered irrelevant to current market value. For a deeper look at how appraised value compares with assessed value and listing price, see our article on assessed value vs. market value.

How to Approach Your Home Strategically

Understanding what appraisers actually weigh helps homeowners make smarter decisions — whether preparing for a sale, refinance, or home equity loan.

Before an appraisal, focus on:

Completing deferred maintenance that could be flagged as a condition issue
Ensuring all improvements have proper permits and documentation
Gathering records of updates (roof replacement date, HVAC service history, etc.) to share with the appraiser
Researching recent comparable sales in your area so you understand the local market context

If you are considering renovations for value, consult local real estate professionals about which improvements reflect what buyers in your specific market actually expect. The Home Improvement hub offers guidance on upgrading your home's key systems and spaces.

Finally, remember that if an appraisal comes in lower than expected, you are not without options — a reconsideration of value request, a second opinion, or renegotiating the transaction price are all possibilities worth exploring with your real estate agent or lender.

Does a kitchen remodel increase appraised value?

A kitchen renovation can contribute to a higher appraisal, but the impact depends on the neighborhood's price range. If comparable homes nearby have updated kitchens, an outdated one may hold back your value. However, a luxury remodel in a modest neighborhood rarely returns its full cost in appraised value.

Can I dispute a low home appraisal?

Yes. You can ask your lender to request a reconsideration of value, in which you provide evidence of comparable sales the appraiser may have overlooked. A second appraisal is also sometimes an option. The appraiser is not obligated to change the value, but clear factual errors can sometimes be corrected.

Does curb appeal affect appraised value?

Curb appeal matters to buyers and to appraisers assessing overall condition. Overgrown landscaping or a crumbling driveway can signal deferred maintenance, which does affect value. However, elaborate landscaping upgrades rarely generate a dollar-for-dollar return in the appraisal.

How long is an appraisal valid?

Most mortgage lenders treat an appraisal as valid for 120 days, though some accept up to 12 months under certain conditions. If market conditions shift significantly, lenders may require a new appraisal even within that window.

Do appliances count in a home appraisal?

Built-in appliances that convey with the home — such as dishwashers or built-in ovens — are generally included in the appraisal. Freestanding appliances like refrigerators are typically excluded unless they are part of the sale agreement.

Does a swimming pool add appraised value?

A pool can add value in warm-climate markets where pools are common and desirable. In colder regions, pools may add little value or even be seen as a liability due to maintenance costs. An appraiser will look at what comparable homes with pools are selling for in the local market.