For most homeowners, replacement cost coverage is sufficient. For owners of high-value homes, it may not be — and the difference between replacement cost and agreed value coverage can mean hundreds of thousands of dollars at claim time.
How Replacement Cost Coverage Works
Standard replacement cost coverage pays to rebuild your home to its pre-loss condition using materials of like kind and quality. The insurer determines the replacement cost at the time of the loss — not at the time you bought the policy.
This creates several potential problems for high-value homes:
Underinsurance. If your coverage limit is lower than the actual replacement cost at the time of loss, you pay the difference. Construction costs have risen dramatically in recent years; a home insured for $800,000 five years ago may cost $1.1 million to rebuild today.
Coinsurance clauses. Some policies include coinsurance requirements — if you are insured for less than a specified percentage of replacement cost (often 80%), your claim payout is reduced proportionally. This can result in significant out-of-pocket costs even for partial losses.
Disputes over value. The insurer's estimate of replacement cost and your contractor's estimate may differ significantly, especially for custom homes with unique features.
How Agreed Value Coverage Works
Agreed value coverage (also called guaranteed replacement cost or stated value coverage) works differently. You and the insurer agree on the value of the home at the time the policy is written — and that agreed amount is what the insurer pays in the event of a total loss, with no depreciation and no coinsurance disputes.
Key features:
- The payout is the agreed amount, period
- No coinsurance clause
- No depreciation applied to the structure
- No dispute about replacement cost at claim time
For high-value homes with custom features, unique architecture, or materials that are difficult to value, agreed value coverage provides certainty that replacement cost coverage does not.
Getting to the Right Agreed Value
The agreed value is only as good as the appraisal that supports it. For high-value homes, a professional replacement cost appraisal by a qualified appraiser is essential.
The appraisal should account for:
- Custom architectural features
- High-end finishes and materials (marble, custom millwork, imported tile)
- Unique structural elements
- Outbuildings, pools, and other structures
- Current construction costs in your market
Carriers that specialize in high-value homes — Chubb, AIG Private Client Group, PURE, Cincinnati Insurance — typically require or strongly recommend a professional appraisal before writing agreed value coverage.
Extended Replacement Cost: A Middle Ground
Some carriers offer extended replacement cost coverage — a hybrid that pays replacement cost plus an additional percentage (typically 25–50%) if actual costs exceed the coverage limit. This provides a buffer against underinsurance without requiring a formal agreed value appraisal.
Extended replacement cost is appropriate for many high-value homes but may not be sufficient for the most expensive or unique properties.
Inflation Guard
Regardless of whether you have replacement cost or agreed value coverage, your coverage limit should keep pace with construction cost inflation. Many policies include an automatic inflation guard that increases the coverage limit annually.
For high-value homes, review your coverage limit annually and update it if construction costs in your area have risen significantly.
The Bottom Line
For high-value homes with custom features and significant replacement costs, agreed value coverage provides certainty that standard replacement cost coverage does not. The key is getting the agreed value right through a professional appraisal.
Talk to a RightQuote advisor about high-value home insurance, or explore homeowners insurance options.
Part of the High-Value Home Insurance Guide.