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Single Family ResidenceResidential
$571,770$340 / 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 88How 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

12 KNOLLWOOD DR

MATTAPOISETT, MA 02739
3
Beds
2.5
Baths
1,680 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.
0.66 ac
Lot SizeThe size of the land the home sits on, from county records.
1989
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

$572K
$505K low$639K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,296 (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.$399,300 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$133,100
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$266,200
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$744,990

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
CountyPLYMOUTH
Lot (acres)The size of the land the home sits on, from county records.0.66
RoofThe main material covering the roof, such as asphalt shingle or tile.Shingle
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

Transaction History(12)

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
CenterA
Elementary · Grades PK–3 · 0.9 mi
H
Old Rochester Regional High SchoolA-
High · Grades 9–12 · 2.6 mi
M
Old Rochester Regional Jr High SchoolC+
Middle · Grades 7–8 · 2.6 mi

District: Old Rochester School District

Neighborhood · ZIP 02739These 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.115
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 100.56

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.84%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.36%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.2.7%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.3%
PopulationHow many people live in this area.5,594
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.287 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$114,027
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$153,153
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.49 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.52%

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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

12 Knollwood 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 less than 83% of homes in Mattapoisett 02739
  • Costs less per square foot than 85% of homes in Mattapoisett 02739
  • Newer than 74% of homes in Mattapoisett 02739

What homes are worth in Mattapoisett 02739

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

This home
$416K$2.5M

This home is worth more than 17% of homes in Mattapoisett 02739.

How it measures up in Mattapoisett 02739

The dot is this home. The mark in the middle is the typical home in Mattapoisett 02739.

Estimated value$571,770
CheaperTypical $797,236Pricier

Pricier than 17% of homes nearby

Price per ft²$340
CheaperTypical $435Pricier

Pricier than 15% of homes nearby

Living area1,680 ft²
SmallerTypical 1,854 ft²Bigger

Bigger than 40% of homes nearby

Lot size0.66 ac
SmallerTypical 0.46 acBigger

Bigger than 63% of homes nearby

Year built1989
OlderTypical 1970Newer

Newer than 74% of homes nearby

How 12 Knollwood Dr ranks against every home in each area.
MeasureThis homeMattapoisett 02739Plymouth County
Estimated valuepricier than$571,77017% of homes39% of homes
Price per ft²pricier than$34015% of homes31% of homes
Living areabigger than1,680 ft²40% of homes48% of homes
Lot sizebigger than0.66 ac63% of homes61% of homes
Year builtnewer than198974% of homes74% of homes

About 12 Knollwood Dr

How much is 12 Knollwood Dr, Mattapoisett, MA worth?

The TopHap Estimate for 12 Knollwood Dr, Mattapoisett, MA is $571,770 as of Sep 24, 2026. The likely range is $504,818 to $638,722. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 12 Knollwood Dr, Mattapoisett, MA last sell?

12 Knollwood Dr, Mattapoisett, MA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 12 Knollwood Dr, Mattapoisett, MA?

12 Knollwood Dr, Mattapoisett, MA has 3 bedrooms, 2.5 bathrooms, 1,680 square feet of living space and a 0.66-acre lot.

When was 12 Knollwood Dr, Mattapoisett, MA built?

12 Knollwood Dr, Mattapoisett, MA was built in 1989, making it 37 years old. It is a colonial home. The building has 2 stories.

What schools serve 12 Knollwood Dr, Mattapoisett, MA?

12 Knollwood Dr, Mattapoisett, MA is assigned to Center (elementary), rated A; Old Rochester Regional High School (high), rated A-; Old Rochester Regional Jr High School (middle), rated C+. All sit in Old Rochester School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 12 Knollwood Dr, Mattapoisett, MA compare to other homes in Mattapoisett 02739?

Among the 3,361 homes in Mattapoisett 02739, it is worth more than 17% of them ($571,770 against a typical $797,236), its price per square foot is higher than 15% of them ($340 against a typical $435), it is bigger than 40% of them (1,680 ft² against a typical 1,854 ft²), its lot is bigger than 63% of them (0.66 ac against a typical 0.46 ac) and it is newer than 74% of them (1989 against a typical 1970). Measured against all of Plymouth County, it is worth more than 39% 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 12 Knollwood Dr, Mattapoisett, MA?

The 2025 property tax bill for 12 Knollwood Dr, Mattapoisett, MA was $4,296. The county assessed it at $399,300.

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