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Single Family ResidenceResidential
$318,514$184 / 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 89How 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 $70,000 on May 31, 2024

640 ROUTE 18

SUGAR HILL, NH 03586
3
Beds
1
Baths
1,729 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.
2.7 ac
Lot SizeThe size of the land the home sits on, from county records.
1980
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
5
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$319K
$282K low$355K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$70,000 · May 31, 2024

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,309 (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.$277,100 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$128,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$148,600
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$730,075

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.41
64
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
6
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.
83
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
3
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.30 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.A-Frame
CountyGRAFTON
Lot (acres)The size of the land the home sits on, from county records.2.70
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Radiant
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(1)

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.

H
Profile Senior High SchoolA
High · Grades 9–12 · 1.4 mi
M
Profile Junior High SchoolB
Middle · Grades 7–8 · 1.4 mi
E
Lafayette Regional SchoolA
Elementary · Grades KG–6 · 1.4 mi

District: Lafayette Regional School District

Neighborhood · ZIP 03586These 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.86
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.83
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.92

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.72%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.17%
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.0.5%
PopulationHow many people live in this area.794
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.48 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$112,995
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$163,924
Average tempThe average temperature here across a full year.42°F
Annual precipHow much rain and melted snow falls here in a typical year.40 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.33%

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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

640 Route 18 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 96% of homes in Sugar Hill 03586
  • Costs less per square foot than 93% of homes in Sugar Hill 03586
  • Smaller than 77% of homes in Sugar Hill 03586
  • Has a smaller lot than 68% of homes in Sugar Hill 03586

What homes are worth in Sugar Hill 03586

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

This home
$237K$1.8M

This home is worth more than 4% of homes in Sugar Hill 03586.

How it measures up in Sugar Hill 03586

The dot is this home. The mark in the middle is the typical home in Sugar Hill 03586.

Estimated value$318,514
CheaperTypical $704,000Pricier

Pricier than 4% of homes nearby

Price per ft²$184
CheaperTypical $296Pricier

Pricier than 7% of homes nearby

Living area1,729 ft²
SmallerTypical 2,418 ft²Bigger

Bigger than 23% of homes nearby

Lot size2.7 ac
SmallerTypical 4.71 acBigger

Bigger than 32% of homes nearby

Year built1980
OlderTypical 1980Newer

Newer than 50% of homes nearby

How 640 Route 18 ranks against every home in each area.
MeasureThis homeSugar Hill 03586Grafton County
Estimated valuepricier than$318,5144% of homes28% of homes
Price per ft²pricier than$1847% of homes17% of homes
Living areabigger than1,729 ft²23% of homes58% of homes
Lot sizebigger than2.7 ac32% of homes66% of homes
Year builtnewer than198050% of homes47% of homes

About 640 Route 18

How much is 640 Route 18, Sugar Hill, NH worth?

The TopHap Estimate for 640 Route 18, Sugar Hill, NH is $318,514 as of Jul 14, 2026. The likely range is $282,372 to $354,656. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 640 Route 18, Sugar Hill, NH last sell?

640 Route 18, Sugar Hill, NH last sold on May 31, 2024 for $70,000, according to the county's recorded deed.

How big is 640 Route 18, Sugar Hill, NH?

640 Route 18, Sugar Hill, NH has 3 bedrooms, 1 bathrooms, 1,729 square feet of living space and a 2.70-acre lot.

When was 640 Route 18, Sugar Hill, NH built?

640 Route 18, Sugar Hill, NH was built in 1980, making it 46 years old. It is a a-frame home. The building has 2 stories.

What schools serve 640 Route 18, Sugar Hill, NH?

640 Route 18, Sugar Hill, NH is assigned to Profile Senior High School (high), rated A; Profile Junior High School (middle), rated B; Lafayette Regional School (elementary), rated A. All sit in Lafayette Regional School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 640 Route 18, Sugar Hill, NH compare to other homes in Sugar Hill 03586?

Among the 462 homes in Sugar Hill 03586, it is worth more than 4% of them ($318,514 against a typical $704,000), its price per square foot is higher than 7% of them ($184 against a typical $296), it is bigger than 23% of them (1,729 ft² against a typical 2,418 ft²), its lot is bigger than 32% of them (2.7 ac against a typical 4.71 ac) and it is newer than 50% of them (1980 against a typical 1980). Measured against all of Grafton County, it is worth more than 28% 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 640 Route 18, Sugar Hill, NH?

The 2025 property tax bill for 640 Route 18, Sugar Hill, NH was $3,309. The county assessed it at $277,100.

More homes on Route 18

Closest homes

More homes in Sugar Hill 03586

Assigned schools

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