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Single Family ResidenceResidential
$504,311$250 / 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 92How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026
Last sold for $173,300 on Sep 16, 2003

20 ALEXANDER RD

DUNBARTON, NH 03046
1
Beds
1
Baths
2,016 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.
5 ac
Lot SizeThe size of the land the home sits on, from county records.
2002
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
4
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$504K
$464K low$545K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$173,300 · Sep 16, 2003

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,873 (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.$420,600 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$161,100
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$259,500
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$277,800
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$365,655

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.40
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
24
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
57
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
93
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
25
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.Colonial
CountyMERRIMACK
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.2011
Lot (acres)The size of the land the home sits on, from county records.5.00
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.Yes
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(6)

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
Dunbarton Elementary SchoolC
Elementary · Grades KG–6 · 1.6 mi
H
Bow High SchoolA
High · Grades 9–12 · 5.5 mi
M
Bow Memorial SchoolB
Middle · Grades 7–8 · 5.8 mi

District: Bow School District

Neighborhood · ZIP 03046These 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.56
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.88
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.98

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.22%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.2.2%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.9%
PopulationHow many people live in this area.3,248
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.103 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$138,778
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$150,568
Average tempThe average temperature here across a full year.46°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

20 Alexander Rd 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 76% of homes in Dunbarton 03046
  • Costs less per square foot than 91% of homes in Dunbarton 03046
  • Has a bigger lot than 81% of homes in Merrimack County
  • Newer than 82% of homes in Merrimack County

What homes are worth in Dunbarton 03046

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

This home
$306K$1.2M

This home is worth more than 24% of homes in Dunbarton 03046.

How it measures up in Dunbarton 03046

The dot is this home. The mark in the middle is the typical home in Dunbarton 03046.

Estimated value$504,311
CheaperTypical $637,974Pricier

Pricier than 24% of homes nearby

Price per ft²$250
CheaperTypical $325Pricier

Pricier than 9% of homes nearby

Living area2,016 ft²
SmallerTypical 1,992 ft²Bigger

Bigger than 51% of homes nearby

Lot size5 ac
SmallerTypical 5.06 acBigger

Bigger than 44% of homes nearby

Year built2002
OlderTypical 1990Newer

Newer than 73% of homes nearby

How 20 Alexander Rd ranks against every home in each area.
MeasureThis homeDunbarton 03046Merrimack County
Estimated valuepricier than$504,31124% of homes57% of homes
Price per ft²pricier than$2509% of homes37% of homes
Living areabigger than2,016 ft²51% of homes61% of homes
Lot sizebigger than5 ac44% of homes81% of homes
Year builtnewer than200273% of homes82% of homes

About 20 Alexander Rd

How much is 20 Alexander Rd, Dunbarton, NH worth?

The TopHap Estimate for 20 Alexander Rd, Dunbarton, NH is $504,311 as of Aug 30, 2026. The likely range is $463,674 to $544,948. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 20 Alexander Rd, Dunbarton, NH last sell?

20 Alexander Rd, Dunbarton, NH last sold on Sep 16, 2003 for $173,300, according to the county's recorded deed.

How big is 20 Alexander Rd, Dunbarton, NH?

20 Alexander Rd, Dunbarton, NH has 1 bedrooms, 1 bathrooms, 2,016 square feet of living space and a 5.00-acre lot.

When was 20 Alexander Rd, Dunbarton, NH built?

20 Alexander Rd, Dunbarton, NH was built in 2002, making it 24 years old. It is a colonial home. The building has 1 story.

What schools serve 20 Alexander Rd, Dunbarton, NH?

20 Alexander Rd, Dunbarton, NH is assigned to Dunbarton Elementary School (elementary), rated C; Bow High School (high), rated A; Bow Memorial School (middle), rated B. All sit in Bow School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 20 Alexander Rd, Dunbarton, NH compare to other homes in Dunbarton 03046?

Among the 1,184 homes in Dunbarton 03046, it is worth more than 24% of them ($504,311 against a typical $637,974), its price per square foot is higher than 9% of them ($250 against a typical $325), it is bigger than 51% of them (2,016 ft² against a typical 1,992 ft²), its lot is bigger than 44% of them (5 ac against a typical 5.06 ac) and it is newer than 73% of them (2002 against a typical 1990). Measured against all of Merrimack County, it is worth more than 57% 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 20 Alexander Rd, Dunbarton, NH?

The 2025 property tax bill for 20 Alexander Rd, Dunbarton, NH was $6,873. The county assessed it at $420,600.

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