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Single Family ResidenceResidential
$367,382$204 / 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 96How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026
Last sold for $365,000 on Aug 11, 2026

421 ROUTE 10 S

GRANTHAM, NH 03753
2
Beds
2 / 1
Baths
1,798 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.
0.6 ac
Lot SizeThe size of the land the home sits on, from county records.
1865
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
6
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$367K
$352K low$383K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$365,000 · Aug 11, 2026

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,555 (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.$296,200 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$49,700
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$246,500

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.32
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
7
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
51
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
95
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
9
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.minimal

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.Conventional
CountySULLIVAN
Lot (acres)The size of the land the home sits on, from county records.0.60
RoofThe main material covering the roof, such as asphalt shingle or tile.Metal
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
GarageWhether the property has a garage, and details like whether it is attached to the home.No Garage
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck

Transaction History(4)

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
Grantham Village SchoolA+
Elementary · Grades PK–6 · 0.3 mi
M
Lebanon Middle SchoolB+
Middle · Grades 5–8 · 11.3 mi
H
Lebanon High SchoolA-
High · Grades 9–12 · 12.8 mi

District: Grantham School District

Neighborhood · ZIP 03753These 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.91
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.79
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.86

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.76%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.30%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.2.0%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.5%
PopulationHow many people live in this area.3,200
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.112 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$112,251
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$133,240
Average tempThe average temperature here across a full year.45°F
Annual precipHow much rain and melted snow falls here in a typical year.44 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.54%

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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

421 Route 10 S 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 less than 93% of homes in Grantham 03753
  • Costs less per square foot than 97% of homes in Grantham 03753
  • Has a smaller lot than 86% of homes in Grantham 03753
  • Older than 98% of homes in Grantham 03753

What homes are worth in Grantham 03753

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

This home
$280K$1.2M

This home is worth more than 7% of homes in Grantham 03753.

How it measures up in Grantham 03753

The dot is this home. The mark in the middle is the typical home in Grantham 03753.

Estimated value$367,382
CheaperTypical $519,835Pricier

Pricier than 7% of homes nearby

Price per ft²$204
CheaperTypical $292Pricier

Pricier than 3% of homes nearby

Living area1,798 ft²
SmallerTypical 1,771 ft²Bigger

Bigger than 52% of homes nearby

Lot size0.6 ac
SmallerTypical 1.38 acBigger

Bigger than 14% of homes nearby

Year built1865
OlderTypical 1986Newer

Newer than 2% of homes nearby

How 421 Route 10 S ranks against every home in each area.
MeasureThis homeGrantham 03753Sullivan County
Estimated valuepricier than$367,3827% of homes45% of homes
Price per ft²pricier than$2043% of homes30% of homes
Living areabigger than1,798 ft²52% of homes61% of homes
Lot sizebigger than0.6 ac14% of homes31% of homes
Year builtnewer than18652% of homes7% of homes

About 421 Route 10 S

How much is 421 Route 10 S, Grantham, NH worth?

The TopHap Estimate for 421 Route 10 S, Grantham, NH is $367,382 as of Sep 24, 2026. The likely range is $351,718 to $383,046. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 421 Route 10 S, Grantham, NH last sell?

421 Route 10 S, Grantham, NH last sold on Aug 11, 2026 for $365,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 421 Route 10 S, Grantham, NH?

421 Route 10 S, Grantham, NH has 2 bedrooms, 2 bathrooms, 1,798 square feet of living space and a 0.60-acre lot.

When was 421 Route 10 S, Grantham, NH built?

421 Route 10 S, Grantham, NH was built in 1865, making it 161 years old. It is a conventional home. The building has 2 stories.

What schools serve 421 Route 10 S, Grantham, NH?

421 Route 10 S, Grantham, NH is assigned to Grantham Village School (elementary), rated A+; Lebanon Middle School (middle), rated B+; Lebanon High School (high), rated A-. All sit in Grantham School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 421 Route 10 S, Grantham, NH compare to other homes in Grantham 03753?

Among the 1,864 homes in Grantham 03753, it is worth more than 7% of them ($367,382 against a typical $519,835), its price per square foot is higher than 3% of them ($204 against a typical $292), it is bigger than 52% of them (1,798 ft² against a typical 1,771 ft²), its lot is bigger than 14% of them (0.6 ac against a typical 1.38 ac) and it is newer than 2% of them (1865 against a typical 1986). Measured against all of Sullivan County, it is worth more than 45% 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 421 Route 10 S, Grantham, NH?

The 2025 property tax bill for 421 Route 10 S, Grantham, NH was $6,555. The county assessed it at $296,200.

More homes on Route 10 S

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