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Single Family ResidenceResidential
$771,626$208 / ft²
TopHap EstimateOur estimate of what this home would sell for today, based on nearby sales, the home's size and features, and local price trends. It is a starting point, not an appraisal.· confidence 95How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026
Last sold for $600,000 on Mar 20, 2023

666 MIDDLE RTE

GILMANTON, NH 03237
3
Beds
3
Baths
3,717 ft²
Living AreaTotal finished area of the structures, from county records. Some counties include shared space like hallways or a building gym, so it may not match a listing.
43 ac
Lot SizeThe size of the land the home sits on, from county records.
1780
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$772K
$735K low$808K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$600,000 · Mar 20, 2023
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$771,626
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$617,301

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$10,336 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$677,790 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$178,390
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$499,400
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$677,186

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.22 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Cape Cod
CountyBELKNAP
Lot (acres)The size of the land the home sits on, from county records.43.00
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Hot Water
PoolWhether the property has a pool, and what kind, such as in-ground.No
ViewThe type of view from the property, or another feature of the site that affects value.Waterfront-Not Specified

Transaction History(2)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Gilmanton SchoolB
Elementary · Grades PK–8 · 3.7 mi
H
Gilford High SchoolB-
High · Grades 9–12 · 5.4 mi

District: Gilford School District

Neighborhood · ZIP 03237These are comparison scores, not percentages. 100 equals the national average, so 150 means about 50% above average.

CrimeLocal crime compared with the rest of the country, where 100 is average. It reflects things like population density, income, and how crime gets reported.67
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.86
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.116

Index scale: 100 = US average (tick). Lower is better.

Homes occupiedThe share of homes here that someone lives in. The rest sit empty, including vacation and for-sale homes.74%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.20%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.9.3%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.2,621
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.72 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$102,712
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$121,259
Average tempThe average temperature here across a full year.45°F
Annual precipHow much rain and melted snow falls here in a typical year.47 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.54%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
Company ownedWhether the owner is a company or trust rather than a person.Yes

Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.

How this home compares

666 Middle Rte measured against every home in its neighborhood, its ZIP code and its county, using county assessor records refreshed nightly. A home can stand out in one of those areas and look ordinary in another, because each one holds a different mix of homes.

  • Worth more than 92% of homes in Gilmanton 03237
  • Costs less per square foot than 91% of homes in Belknap County
  • Bigger than 96% of homes in Belknap County
  • Has a bigger lot than 98% of homes in Belknap County
  • Among the oldest homes in Belknap County

What homes are worth in Gilmanton 03237

Each bar is how many homes fall in that price range. The marker is this home.

This home
$202K$1.1M

This home is worth more than 92% of homes in Gilmanton 03237.

How it measures up in Gilmanton 03237

The dot is this home. The mark in the middle is the typical home in Gilmanton 03237.

Estimated value$771,626
CheaperTypical $470,204Pricier

Pricier than 92% of homes nearby

Price per ft²$208
CheaperTypical $269Pricier

Pricier than 13% of homes nearby

Living area3,717 ft²
SmallerTypical 1,747 ft²Bigger

Bigger than 95% of homes nearby

Lot size43 ac
SmallerTypical 1.75 acBigger

Bigger than 96% of homes nearby

Year built1780
OlderTypical 1979Newer

Newer than 2% of homes nearby

How 666 Middle Rte ranks against every home in each area.
MeasureThis homeGilmanton 03237Belknap County
Estimated valuepricier than$771,62692% of homes75% of homes
Price per ft²pricier than$20813% of homes9% of homes
Living areabigger than3,717 ft²95% of homes96% of homes
Lot sizebigger than43 ac96% of homes98% of homes
Year builtnewer than17802% of homesalmost no homes

About 666 Middle Rte

How much is 666 Middle Rte, Gilmanton, NH worth?

The TopHap Estimate for 666 Middle Rte, Gilmanton, NH is $771,626 as of Jul 14, 2026. The likely range is $735,418 to $807,834. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 666 Middle Rte, Gilmanton, NH last sell?

666 Middle Rte, Gilmanton, NH last sold on Mar 20, 2023 for $600,000, according to the county's recorded deed.

How big is 666 Middle Rte, Gilmanton, NH?

666 Middle Rte, Gilmanton, NH has 3 bedrooms, 3 bathrooms, 3,717 square feet of living space and a 43.00-acre lot.

When was 666 Middle Rte, Gilmanton, NH built?

666 Middle Rte, Gilmanton, NH was built in 1780, making it 246 years old. It is a cape cod home. The building has 2 stories.

What schools serve 666 Middle Rte, Gilmanton, NH?

666 Middle Rte, Gilmanton, NH is assigned to Gilmanton School (elementary), rated B; Gilford High School (high), rated B-. All sit in Gilford School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 666 Middle Rte, Gilmanton, NH compare to other homes in Gilmanton 03237?

Among the 1,444 homes in Gilmanton 03237, it is worth more than 92% of them ($771,626 against a typical $470,204), its price per square foot is higher than 13% of them ($208 against a typical $269), it is bigger than 95% of them (3,717 ft² against a typical 1,747 ft²), its lot is bigger than 96% of them (43 ac against a typical 1.75 ac) and it is newer than 2% of them (1780 against a typical 1979). Measured against all of Belknap County, it is worth more than 75% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 666 Middle Rte, Gilmanton, NH?

The 2025 property tax bill for 666 Middle Rte, Gilmanton, NH was $10,336. The county assessed it at $677,790.

Closest homes

More homes in Gilmanton 03237

Assigned schools

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