Around 60% of homeowners are underinsured, meaning their dwelling coverage falls short of the actual cost to rebuild their homes, according to industry estimates cited by Financial Sense in early 2026. Only about 30% of homeowners have increased their coverage to match rising building costs, even though cumulative construction costs have risen more than 30% in recent years. The average construction cost of a typical single-family home reached $162 per square foot in 2024, up from $80 per square foot in 2011. For homeowners in affluent suburban markets where finish quality and labor costs run above national averages, that figure is often higher.
The underinsurance gap does not announce itself. It is invisible during routine claims — a broken pipe, storm damage to a roof, a fallen tree — where the loss falls within policy limits regardless of whether the dwelling coverage is adequate. The gap becomes catastrophic during total losses, when the rebuild cost exceeds the policy limit and the homeowner is responsible for the difference out of pocket. Four misconceptions drive most of the underinsurance problem.
Myth 1: My Home’s Market Value Is My Replacement Cost
Market value and replacement cost are two different numbers that bear no reliable relationship to each other. Market value includes the land the home sits on — land is never destroyed in a fire or storm and is never what an insurance policy covers. Replacement cost is the expense of rebuilding the physical structure from the foundation up, at current labor and material costs, under current building codes. In most markets, the land accounts for 25% to 50% of the market value of a property. A homeowner who insures their $900,000 home at its full market value is almost certainly overinsuring their dwelling while carrying inadequate personal property and liability coverage — or they have chosen their Coverage A limit based on the wrong number entirely.
The correct number is the replacement cost estimate, which accounts for square footage, construction type, finish quality, local labor costs, and current material prices. Most carriers offer replacement cost estimator tools; independent appraisals provide additional validation for homes with custom finishes or non-standard construction.
Myth 2: The Insurance Company Set the Right Limit When I Bought the Policy
The dwelling coverage limit set at policy inception reflected rebuild costs at that time, using whatever estimating methodology the carrier applied at the time of underwriting. Construction costs have risen sharply and unevenly since 2020. A limit that was adequate in 2021 may be meaningfully inadequate today, because the rebuild cost of the same house has increased while the policy limit has increased only modestly — if at all.
After Colorado’s Marshall Fire, 74% of policyholders were found to be underinsured, and 36% were severely underinsured, meaning their coverage was below 75% of the actual rebuild cost. Those homeowners did not choose to be underinsured. They accepted the limit their carrier set at policy inception, assumed the annual inflation guard increase was keeping pace with actual cost increases, and discovered the gap only when they needed to rebuild.

Myth 3: My Inflation Guard Endorsement Keeps My Coverage Current
Most homeowners policies include an inflation guard provision that automatically increases the dwelling coverage limit annually — typically by a percentage that approximates general inflation or construction cost inflation. The problem is that inflation guard percentages are set at inception and do not respond dynamically to the actual cost trajectory of local construction markets.
Construction input prices, according to the Bureau of Labor Statistics Producer Price Index, spiked well above general consumer inflation in the 2021 through 2023 period. A policy with a 4% annual inflation guard increase during a period when local construction costs rose 12% is falling behind by 8 percentage points per year. After three years, the gap between the inflation guard-adjusted limit and the actual rebuild cost can be substantial — and the homeowner who relies on the inflation guard without periodic independent review may not discover the gap until a loss reveals it.
Myth 4: The Gap Is Small Enough to Manage Out of Pocket
The average underinsurance gap is not a rounding error. Research following the Marshall Fire found an average underinsurance shortfall of $139,000 per household. At the high end of the market — the custom homes, renovated Colonials, and estate properties common in affluent suburban markets — the gap between an outdated dwelling limit and current rebuild cost can easily reach $200,000 to $400,000 or more.
Two policy features meaningfully reduce underinsurance risk without requiring the homeowner to perfectly predict future construction costs. Extended replacement cost endorsements provide a buffer of 20% to 50% above the stated dwelling limit, covering cost overruns that occur between loss and reconstruction. Guaranteed replacement cost coverage, where available from the carrier, covers the actual rebuild regardless of the stated limit. Both features deserve a conversation at policy renewal.
Tooher-Ferraris reviews dwelling coverage limits against current replacement cost estimates as part of every annual personal lines policy review. Learn more at https://toofer.com/home-insurance/ and https://toofer.com/private-client-group/.
The Insurance Information Institute publishes homeowners market data and replacement cost guidance at iii.org. BLS Producer Price Index data for construction inputs is available at bls.gov.
Frequently Asked Questions
How do I find out if my home is underinsured?
The most reliable method is to compare your current Coverage A dwelling limit against an updated replacement cost estimate that accounts for your home’s actual square footage, construction type, finish quality, and current local labor costs. Many carriers provide replacement cost estimator tools at no charge; independent appraisals from a certified appraiser or local contractor provide additional validation. Any significant renovation, addition, or improvement since the last estimate requires a new calculation.
What is the difference between market value and replacement cost for insurance purposes?
Market value is the price a buyer would pay for the property, including the land. Replacement cost is the expense of rebuilding the physical structure from the foundation up at current labor and material costs. For insurance purposes, the relevant number is replacement cost — land is not destroyed in a loss and is not what a homeowners policy covers. In most markets, replacement cost is significantly lower than market value, which means insuring at market value results in overcoverage on the structure and often inadequate coverage elsewhere.
Does an extended replacement cost endorsement eliminate the underinsurance risk?
An extended replacement cost endorsement significantly reduces but does not eliminate underinsurance risk. It provides a buffer of 20% to 50% above the stated dwelling limit, covering cost overruns that occur between a loss and the completion of reconstruction. It does not correct a fundamentally inadequate dwelling limit — if the Coverage A limit is set 40% below actual rebuild cost, a 25% extended replacement cost endorsement still leaves a gap. The endorsement works best as a buffer against post-disaster cost escalation, not as a substitute for maintaining an accurate base limit.
Ready to find out if your home coverage keeps up with what it would actually cost to rebuild? The team at Tooher-Ferraris has been helping homeowners protect their most valuable assets since 1932. Contact us today to schedule a no-obligation consultation — https://toofer.com/contact-us/























































