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Single Family ResidenceResidential
$242,657$136 / 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 Sep 24, 2026
Last sold for $116,400 on Oct 15, 2008

21 DUNSTER AVE

GREENVILLE, NH 03048
3
Beds
1.5
Baths
1,789 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.
0.2 ac
Lot SizeThe size of the land the home sits on, from county records.
1900
Year BuiltThe year the home was originally built, according to county records.
3
StoriesHow many floors the home has above ground.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$243K
$223K low$262K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$116,400 · Oct 15, 2008

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,658 (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.$218,800 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$71,300
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$147,500
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$245,670

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
CountyHILLSBOROUGH
Lot (acres)The size of the land the home sits on, from county records.0.20
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

Transaction History(3)

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
Highbridge Hill Elementary SchoolB
Elementary · Grades PK–4 · 1.5 mi
H
Mascenic Regional High SchoolD+
High · Grades 9–12 · 1.8 mi
M
Boynton Middle SchoolC-
Middle · Grades 5–8 · 2.1 mi

District: Mascenic Regional School District

Neighborhood · ZIP 03048These 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.118
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.89
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.79

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.94%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.15%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.2%
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.3,291
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.119 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$82,841
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$97,784
Average tempThe average temperature here across a full year.46°F
Annual precipHow much rain and melted snow falls here in a typical year.48 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 Dunster Ave 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 98% of homes in Greenville 03048
  • Among the lowest price per square foot in Hillsborough County
  • Has a smaller lot than 87% of homes in Greenville 03048
  • Older than 92% of homes in Hillsborough County

What homes are worth in Greenville 03048

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

This home
$237K$802K

This home is worth more than 2% of homes in Greenville 03048.

How it measures up in Greenville 03048

The dot is this home. The mark in the middle is the typical home in Greenville 03048.

Estimated value$242,657
CheaperTypical $475,000Pricier

Pricier than 2% of homes nearby

Price per ft²$136
CheaperTypical $226Pricier

Pricier than 4% of homes nearby

Living area1,789 ft²
SmallerTypical 1,943 ft²Bigger

Bigger than 45% of homes nearby

Lot size0.2 ac
SmallerTypical 2.1 acBigger

Bigger than 13% of homes nearby

Year built1900
OlderTypical 1979Newer

Newer than 18% of homes nearby

How 21 Dunster Ave ranks against every home in each area.
MeasureThis homeGreenville 03048Hillsborough County
Estimated valuepricier than$242,6572% of homes2% of homes
Price per ft²pricier than$1364% of homesalmost no homes
Living areabigger than1,789 ft²45% of homes52% of homes
Lot sizebigger than0.2 ac13% of homes20% of homes
Year builtnewer than190018% of homes8% of homes

About 21 Dunster Ave

How much is 21 Dunster Ave, Greenville, NH worth?

The TopHap Estimate for 21 Dunster Ave, Greenville, NH is $242,657 as of Sep 24, 2026. The likely range is $223,037 to $262,277. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Dunster Ave, Greenville, NH last sell?

21 Dunster Ave, Greenville, NH last sold on Oct 15, 2008 for $116,400, according to the county's recorded deed.

How big is 21 Dunster Ave, Greenville, NH?

21 Dunster Ave, Greenville, NH has 3 bedrooms, 1.5 bathrooms, 1,789 square feet of living space and a 0.20-acre lot.

When was 21 Dunster Ave, Greenville, NH built?

21 Dunster Ave, Greenville, NH was built in 1900, making it 126 years old. It is a conventional home. The building has 3 stories.

What schools serve 21 Dunster Ave, Greenville, NH?

21 Dunster Ave, Greenville, NH is assigned to Highbridge Hill Elementary School (elementary), rated B; Mascenic Regional High School (high), rated D+; Boynton Middle School (middle), rated C-. All sit in Mascenic Regional School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Dunster Ave, Greenville, NH compare to other homes in Greenville 03048?

Among the 1,314 homes in Greenville 03048, it is worth more than 2% of them ($242,657 against a typical $475,000), its price per square foot is higher than 4% of them ($136 against a typical $226), it is bigger than 45% of them (1,789 ft² against a typical 1,943 ft²), its lot is bigger than 13% of them (0.2 ac against a typical 2.1 ac) and it is newer than 18% of them (1900 against a typical 1979). Measured against all of Hillsborough County, it is worth more than 2% 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 Dunster Ave, Greenville, NH?

The 2025 property tax bill for 21 Dunster Ave, Greenville, NH was $3,658. The county assessed it at $218,800.

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