How Much Is Insurance on a $10 Million Home in New Hampshire?

High-valueNH

Reviewed by Jon Merwin, Founder & CEO, Portsmouth Atlantic Insurance · Published October 4, 2026

How much is insurance on a $10 million home in New Hampshire? There is no published average, and at this level a single number would be meaningless. The premium reflects the rebuild cost of the home and every outbuilding, the value of what’s inside, the household’s liability exposure, waterfront and flood risk, and any other homes the family owns. We don’t publish an average premium, because a single number would mislead more people than it helps. What we can do is explain what drives the cost and what to check before you buy.

This guide covers what is different about insuring a very high-value household: private-client service, very high limits, umbrella and excess liability, cyber and identity protection, household staff, multiple homes, valuables and excess flood. For narrower questions, see our $3 million guide on rebuild cost, our $4 million guide on valuables, and our $5 million guide on waterfront estates.

What drives the cost to insure a $10 million home?

• Rebuild cost of the main residence, guest houses, staff quarters, barns and boathouses.
• Contents and collections: furnishings, art, jewelry, wine and other collectibles.
• Liability exposure: drivers, staff, guests, pools, docks, boats and public profile.
• Location: coastal or lakefront exposure, flood zone, wind and fire protection.
• Protection: monitored fire and security systems, water-leak detection and shutoff, generators and on-site staff.
• The whole program: other homes, vehicles, watercraft and the umbrella limits that sit over them.

What is private-client insurance?

"Private client" is how the insurance industry generally describes coverage and service built for very high-net-worth households. Policies are usually broader than standard forms and are written to work together across homes, autos, valuables and liability. Service features vary by carrier, so ask about:

• Appraisals. Will the carrier appraise the home and major valuables at the start, and how often after that?
• Risk consultations. Does the carrier offer on-site reviews of water, fire and security risks, and recommendations to reduce them?
• A dedicated service team. Who handles changes and questions, and how is the account reviewed each year?
• Claims handling. How are large or complex claims managed, and can you work with specialist contractors and restorers?

Our role is to compare private-client carriers for your household, confirm which ones will write your home, and coordinate the full program.

How high should dwelling and contents limits be on a $10 million home?

The dwelling limit should match what it would cost to rebuild the home with materials of similar kind and quality, as the NAIC describes replacement cost. At this level, that number usually comes from a professional appraisal that accounts for custom architecture, specialty materials and trades, and long construction timelines. Ask whether extended or guaranteed replacement cost is available, and size ordinance or law coverage to the age of the home. Our $3 million guide explains these terms.

Rebuild costs at this level keep climbing. Chubb reviews construction costs every year and points to skilled labor, stricter codes, custom finishes that standard cost data misses, and the higher cost of rebuilding one home at a time. Ask whether the policy includes extended replacement cost, a cash-out option if you choose not to rebuild, an in-home appraisal, annual construction cost adjustments and equipment breakdown coverage for the home’s systems. Availability varies by state and policy.

Contents limits deserve the same care. Many policies set contents coverage relative to the dwelling limit, which may not reflect what you actually own. Build the limit from an inventory, then schedule the items that need their own values.

How are valuables insured in a very high-value household?

Triple-I notes that standard homeowners policies have a relatively low limit for theft of jewelry, and that a floater with scheduled items offers the broadest protection, after a professional appraisal. Very high-value households often combine scheduled items with blanket coverage for a category, such as jewelry or fine art. Ask how each option handles new purchases, items in transit or on loan, and items kept at another home. Our $4 million guide covers art, jewelry, wine and collections in more detail.

How much umbrella or excess liability does a $10 million household need?

Triple-I explains that an umbrella policy pays once the liability limits on your underlying home, auto and other policies are used up, and that insurers require minimum underlying limits before they will sell one. For a household at this level, the limit is usually set well above what most families carry, based on net worth, future income, the number of drivers and properties, staff, boats and public profile.

• Schedule everything. Every home, vehicle and watercraft should be listed under the umbrella.
• Uninsured motorist coverage. In New Hampshire, RSA 264:15 requires an umbrella or excess policy over your auto policy to provide uninsured motorist coverage equal to the limits purchased, unless the named insured rejects it in writing.
• Board and volunteer roles. Ask whether the umbrella covers personal liability tied to unpaid nonprofit board service.
• Where you travel. Ask how liability coverage applies outside the United States.

Do you need cyber and identity theft coverage?

Triple-I notes that homeowners policies may provide only a limited amount of protection for loss of cash or credit cards, and that many companies now offer identity theft coverage that pays recovery costs and provides restoration services, such as a fraud specialist or case manager. Policies vary by insurer and by state. Chubb and Cincinnati both include or offer identity fraud expense coverage on their high-value forms, and some forms also include kidnap and ransom expense coverage. Some high-value programs also offer broader personal cyber coverage. Ask what is included, such as help after online fraud or a cyber extortion attempt, and what is excluded.

What about the household’s cars?

Vehicles belong in the same program. When the cars are packaged with a Cincinnati home or other Cincinnati policies, Cincinnati’s Capstone Auto coverage, for example, can offer an agreed value for a total loss, new car replacement for a qualifying newer vehicle, repairs with original manufacturer parts and broader liability when you drive outside the U.S. and certain requirements are met. Availability varies by state and policy. See our page on high-value auto insurance in New Hampshire.

What about household staff?

Very high-value homes often have household employees: housekeepers, nannies, chefs, caretakers, groundskeepers or estate managers. Triple-I suggests considering workers’ compensation for household workers you employ on a regular, scheduled basis, and warns that if it’s legally required and you don’t carry it, your homeowners or other policies won’t pay the resulting fines or penalties. Requirements vary by state. Also ask about employment practices liability for household employers, and list any staff who drive family vehicles on the auto policy. Our $5 million guide covers this in more detail.

How do you insure multiple homes?

Families at this level often own several homes: a Seacoast or lakefront house, a ski home, and homes in other states or abroad. A coordinated program keeps limits, deductibles and renewals consistent, and puts every property under one umbrella. Tell us which homes sit empty for part of the year, which have caretakers, and whether any are rented. Portsmouth Atlantic Insurance is licensed in 10 states, so we can often help with homes outside New Hampshire as well. See our guide to insurance for a second home.

Does a $10 million home need excess flood insurance?

Flood is excluded from homeowners policies. FloodSmart.gov states that NFIP building policies cover up to $250,000 and contents policies up to $100,000, a small fraction of a $10 million waterfront home. Excess flood above the NFIP policy, or a private flood policy with higher limits, closes the gap. NFIP policies usually take effect 30 days after purchase. As of October 3, 2026, the NFIP is authorized through December 11, 2026; check FEMA’s reauthorization page for the current status.

Check the property on FEMA’s Flood Map Service Center, and read our page on flood insurance for the New Hampshire Seacoast.

Which carriers insure $10 million homes in New Hampshire?

Homes at this value are written by private-client carriers. The ones we work with at this level are Chubb and Cincinnati, and each decides case by case whether a specific home fits its appetite. As an independent agency comparing 30+ carriers, we confirm which will write your home and compare their coverage and service side by side.

Frequently asked questions

How much is homeowners insurance on a $10 million home?

There is no reliable single figure. The premium reflects the rebuild cost of every building, the value of contents and collections, liability exposure, flood risk and any other homes. A private-client review comparing carriers for your household is the way to get a real number.

What is private-client insurance?

It is coverage and service built for very high-net-worth households, usually with broader policy forms written to work together across homes, autos, valuables and liability. Service features such as appraisals and risk consultations vary by carrier.

How is the dwelling limit set on a $10 million home?

It should match the cost to rebuild the home with materials of similar kind and quality, usually based on a professional appraisal. Ask about extended or guaranteed replacement cost and ordinance or law coverage.

How much umbrella insurance does a very high-net-worth household need?

There is no fixed number. The limit should reflect net worth, future income, drivers, properties, staff, boats and public profile, with every home, vehicle and watercraft listed under it.

Does homeowners insurance cover identity theft?

Homeowners policies may provide only limited protection for lost cash or credit cards. Identity theft coverage, sold by many insurers, can pay recovery costs and provide restoration services. Some high-value programs also offer broader personal cyber coverage.

Does a $10 million waterfront home need excess flood insurance?

Usually, yes. NFIP building coverage is capped at $250,000 and contents at $100,000, so very high-value waterfront homes typically add excess flood above the NFIP policy or a private flood policy with higher limits.

Sources

• NAIC, "Homeowners Insurance" consumer guide
• Insurance Information Institute, "How much homeowners insurance do I need?"
• Insurance Information Institute, "Special coverage for jewelry and other valuables"
• Insurance Information Institute, "What is an umbrella liability policy?"
• New Hampshire RSA 264:15, Uninsured or Hit-and-Run Motor Vehicle Coverage
• Insurance Information Institute, "Identity theft insurance"
• Insurance Information Institute, "Do I need to insure my household help?"
• FloodSmart.gov (NFIP), "Buy a Flood Insurance Policy"
• FEMA, "Congressional Reauthorization for the National Flood Insurance Program"
• FEMA, "FEMA Flood Map Service Center"