By Jonathan Merwin, Founder and CEO, Licensed Insurance Advisor
Stratham is a town of large lots and big single-family houses. Census estimates put about one owner-occupied home in three at a value of $750,000 or more, against about one in nine statewide, and the median home value runs about 1.6 times the state figure (Census Bureau ACS). Many of those houses went up during a single building wave: nearly half of all homes in town date from the 1980s (ACS B25034).
That mix of 1980s and newer colonials, custom homes off Stratham Heights and the Portsmouth Avenue side roads, and historic farmhouses with barns calls for a policy built around rebuild cost rather than market value. Our agency is family-owned and independent, based on Islington Street in Portsmouth a short drive up Route 33, and every high-value home we quote is compared across 40+ carriers. Talk to us at (603) 431-4020 or insure@portsmouthatlanticins.com.
Key takeaways
- Set the dwelling limit from a replacement cost estimate, not the assessment or what you paid.
- Many 1980s homes have been expanded; additions and finished lower levels must be in the estimate.
- Barns and other outbuildings usually need their own limit, especially historic barns under a 79-D easement.
- The town’s design criteria call for 50 psf ground snow loads and an ice barrier, which a rebuild has to meet.
- Cincinnati and Chubb write any dwelling limit; Openly, National General, Hanover and Andover fit many Stratham homes.
Stratham homes in numbers
Census Bureau American Community Survey, 2020–2024 5-year estimates. Values are what owners report and carry margins of error.
| Stratham | New Hampshire | |
|---|---|---|
| Homes valued by their owners at $750,000 or more | about 1 in 3 | about 1 in 9 |
| Homes valued by their owners at $1 million or more | about 1 in 9 | about 1 in 25 |
| Homes built in the 1980s | nearly half | about 1 in 5 |
| Single-family detached houses | about 3 in 4 | about 5 in 8 |
The town’s 2019 Master Plan describes the same pattern: single-family homes on individual lots make up more than three quarters of the housing stock, and most subdivisions were built on two-acre lots (Stratham Master Plan 2019).
Rebuild cost on a 1980s or newer Stratham house
A house built 40 years ago may have been renovated two or three times since. When we review a Stratham home we look at:
- Every finished level, including walkout basements, bonus rooms over the garage and sunroom or family room additions.
- Finishes: kitchen and bath remodels, hardwood and stone, built-ins and custom millwork.
- Systems: standby generators, geothermal or heat pumps, solar, irrigation, well and water treatment equipment.
- Code upgrades. Stratham’s 2026 climatic and geographical design criteria list a 50 psf ground snow load, a 110 to 115 mph design wind speed, a 48-inch frost line and a required ice barrier (Town of Stratham). Ordinance or law coverage pays for upgrades like these after a covered loss.
- Extended replacement cost, which adds a cushion above the dwelling limit when construction costs jump after a storm.
Our replacement cost estimator is a good starting point before we talk.
Barns, farmhouses and outbuildings
Stratham has worked to keep its farm buildings. The Master Plan notes the town adopted RSA 79-D and enrolled 18 barns in preservation easements, which grant tax relief in exchange for keeping the barns maintained (Stratham Master Plan 2019). For insurance, barns and carriage houses raise their own questions:
- Other structures coverage is often a fixed share of the dwelling limit, which may be far below the cost to rebuild a timber-frame barn.
- Historic materials and methods cost more to repair. Photos, measurements and any restoration records help after a loss.
- Horses, boarding, farm stands or a home business in the barn may need farm or business coverage; tell us how the building is used.
- Equipment and tools stored in a barn are contents, subject to the policy’s limits and exclusions.
Fire protection on large lots
The Stratham Volunteer Fire Department, supported by a full-time paramedic program, covers the town (Stratham Fire Department). Most homes rely on private wells, and the Master Plan records that a 2016 Town Meeting bond to connect water infrastructure to the Exeter system along the Gateway corridor did not pass (Stratham Master Plan 2019). Carriers rate fire protection by distance to a responding station and a water source such as a hydrant, dry hydrant or fire pond, so tell us what is near your house. A monitored fire and low-temperature alarm, a generator and automatic water shutoff all help on a high-value application.
Wind, snow and water
Trees over long driveways and heavy wet snow are the common Stratham claims. Water is the other one: a well pump that fails in a cold snap, a frozen pipe in an addition, or a sump that cannot keep up. Water backup coverage is usually an endorsement, and flood is always a separate policy. Homes near Great Bay, the Squamscott or Winnicut rivers or a brook should check the FEMA Flood Map Service Center; we write NFIP flood through Selective and private flood through carriers such as TFIA, Neptune, CatCoverage, Aon Edge, Beyond Floods and Flow Flood. See our flood insurance page.
Carriers for Stratham high-value homes
Cincinnati and Chubb both write homes at any dwelling limit, so we quote both (Cincinnati review, Chubb review). Openly and National General can fit homes up to about $5 million (Openly review). Hanover can write homes up to $2 million, and Andover fits New Hampshire homes up to $1.5 million (Andover review). We match the carrier to the house rather than the other way around.
Valuables, liability and everyone at home
High-value homes usually come with jewelry, art, wine or collections that need scheduled coverage (valuables insurance), teen drivers and several cars (high-value auto), and pools, horses or guests that call for an umbrella. We review all of it together.
Nearby
See our Stratham insurance agency page, New Hampshire high-value home insurance, North Hampton high-value homes, New Castle high-value homes and our Greenland agency page.
Get a Stratham high-value home quote
Send us the details and we will compare 40+ carriers, with the dwelling, barn and liability options laid out side by side. Request a quote. There’s no obligation to buy. About 90% of our quotes go out within 24 hours. We don’t charge any fees.
Stratham families can check our 1,000+ Google reviews and over 2,000 testimonials, along with our A+ BBB rating.
Frequently asked questions
Which carriers write high-value homes in Stratham?
Cincinnati and Chubb both write homes at any dwelling limit, so we quote both on larger Stratham houses. Openly and National General can fit homes up to about $5 million, Hanover can write homes up to $2 million, and Andover fits New Hampshire homes up to $1.5 million. The right fit depends on the house, its fire protection and your claims history.
Is my barn covered under my homeowners policy?
Detached buildings fall under other structures coverage, which is usually a set share of the dwelling limit unless you raise it or schedule the barn. A large or historic barn often needs its own limit. If the barn is used for horses, boarding or a business, tell the carrier, because farm and business use can need separate coverage.
Does a 79-D barn easement change my insurance?
The easement under RSA 79-D is a property tax arrangement in which you agree to maintain the barn. It does not change your policy, but it is a good reason to insure the barn for what it would cost to repair or rebuild with similar materials and to keep photos and records of its condition.
How should I set the dwelling limit on a 1980s Stratham colonial?
Start from a replacement cost estimate, not the assessment or what you paid. Count every finished level, additions, kitchen and bath quality, and systems such as generators and geothermal. Add extended replacement cost if the carrier offers it, and ordinance or law coverage, because a rebuild must meet the current code.
Do I need flood insurance in Stratham?
Homes near Great Bay, the Squamscott or Winnicut rivers or a brook should check the FEMA map and consider it. A high-value homeowners policy excludes flood. We quote NFIP flood through Selective and private flood when a home needs higher limits.
What do you need to quote a Stratham high-value home?
The address, square footage on every level, year built and major renovations, roof type and age, other buildings such as barns and garages, alarms and generators, your current declarations page and any losses in the past five years. The form on this page works, or call (603) 431-4020.
Sources
- Census ACS 5-year 2020–2024, Stratham town: home values (B25075)
- Stratham: year structure built (B25034)
- Stratham: units in structure (B25024)
- Stratham: median home value (B25077)
- New Hampshire: value of owner-occupied homes (B25075)
- New Hampshire: year structure built (B25034)
- Town of Stratham Master Plan, adopted 2019
- Town of Stratham: 2026 Climatic and Geographical Design Criteria
- Stratham Fire Department
- NH RSA 79-D, discretionary preservation easements
- FEMA Flood Map Service Center
General information for Stratham homeowners. Carrier appetite and limits change, and coverage depends on the actual policy and endorsements. Call (603) 431-4020 about a specific home.