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Single Family ResidenceResidential
$732,993$292 / 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 97How 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 $342,500 on Jul 21, 2004

21 BIRCHVIEW DR

DUNBARTON, NH 03046
4
Beds
2.5
Baths
2,511 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.
5.04 ac
Lot SizeThe size of the land the home sits on, from county records.
1999
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
7
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$733K
$710K low$756K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$342,500 · Jul 21, 2004

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$10,294 (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.$630,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$177,400
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$452,600
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$353,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$630,040

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.51
65
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
17
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
56
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.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.32 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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.2009
Lot (acres)The size of the land the home sits on, from county records.5.04
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Hot Water
FireplaceWhether the home has a fireplace, and what kind.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(7)

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 · 1.0 mi
H
Bow High SchoolA
High · Grades 9–12 · 5.6 mi
M
Bow Memorial SchoolB
Middle · Grades 7–8 · 5.7 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

21 Birchview Dr 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 87% of homes in Merrimack County
  • Costs less per square foot than 71% of homes in Dunbarton 03046
  • Bigger than 77% of homes in Merrimack County
  • Has a bigger lot than 81% of homes in Merrimack County
  • Newer than 77% 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
$295K$1.2M

This home is worth more than 71% 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$732,993
CheaperTypical $637,797Pricier

Pricier than 71% of homes nearby

Price per ft²$292
CheaperTypical $325Pricier

Pricier than 29% of homes nearby

Living area2,511 ft²
SmallerTypical 1,996 ft²Bigger

Bigger than 74% of homes nearby

Lot size5.04 ac
SmallerTypical 5.06 acBigger

Bigger than 49% of homes nearby

Year built1999
OlderTypical 1990Newer

Newer than 67% of homes nearby

How 21 Birchview Dr ranks against every home in each area.
MeasureThis homeDunbarton 03046Merrimack County
Estimated valuepricier than$732,99371% of homes87% of homes
Price per ft²pricier than$29229% of homes62% of homes
Living areabigger than2,511 ft²74% of homes77% of homes
Lot sizebigger than5.04 ac49% of homes81% of homes
Year builtnewer than199967% of homes77% of homes

About 21 Birchview Dr

How much is 21 Birchview Dr, Dunbarton, NH worth?

The TopHap Estimate for 21 Birchview Dr, Dunbarton, NH is $732,993 as of Aug 30, 2026. The likely range is $710,368 to $755,619. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Birchview Dr, Dunbarton, NH last sell?

21 Birchview Dr, Dunbarton, NH last sold on Jul 21, 2004 for $342,500, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 21 Birchview Dr, Dunbarton, NH?

21 Birchview Dr, Dunbarton, NH has 4 bedrooms, 2.5 bathrooms, 2,511 square feet of living space and a 5.04-acre lot.

When was 21 Birchview Dr, Dunbarton, NH built?

21 Birchview Dr, Dunbarton, NH was built in 1999, making it 27 years old. It is a colonial home. The building has 2 stories.

What schools serve 21 Birchview Dr, Dunbarton, NH?

21 Birchview Dr, 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 21 Birchview Dr, Dunbarton, NH compare to other homes in Dunbarton 03046?

Among the 1,184 homes in Dunbarton 03046, it is worth more than 71% of them ($732,993 against a typical $637,797), its price per square foot is higher than 29% of them ($292 against a typical $325), it is bigger than 74% of them (2,511 ft² against a typical 1,996 ft²), its lot is bigger than 49% of them (5.04 ac against a typical 5.06 ac) and it is newer than 67% of them (1999 against a typical 1990). Measured against all of Merrimack County, it is worth more than 87% 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 21 Birchview Dr, Dunbarton, NH?

The 2025 property tax bill for 21 Birchview Dr, Dunbarton, NH was $10,294. The county assessed it at $630,000.

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