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Single Family ResidenceResidential
$641,895$392 / 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 $275,700 on Aug 22, 2008

9 GRASSY KNOLL CIR

MASHPEE, MA 02649
3
Beds
2
Baths
1,638 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.
0.54 ac
Lot SizeThe size of the land the home sits on, from county records.
1974
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

$642K
$590K low$693K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$275,700 · Aug 22, 2008

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,607 (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.$544,800 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$238,100
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$306,700
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$531,200
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$639,255

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.Cape Cod
CountyBARNSTABLE
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.1980
Lot (acres)The size of the land the home sits on, from county records.0.54
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
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
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
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
Kenneth Coombs School
Elementary · Grades PK–2 · 1.6 mi
M
Mashpee Middle-High SchoolC
Middle · Grades 7–12 · 1.7 mi

District: Mashpee School District

Neighborhood · ZIP 02649These 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.97
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.90
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.54

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.67%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.27%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.6%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.15,617
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.573 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$89,782
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$119,171
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.47 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.58%

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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

9 Grassy Knoll Cir 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.

  • Costs less per square foot than 79% of homes in Barnstable County
  • Has a bigger lot than 78% of homes in Mashpee 02649
  • Older than 80% of homes in Mashpee 02649

What homes are worth in Mashpee 02649

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

This home
$330K$3.3M

This home is worth more than 43% of homes in Mashpee 02649.

How it measures up in Mashpee 02649

The dot is this home. The mark in the middle is the typical home in Mashpee 02649.

Estimated value$641,895
CheaperTypical $686,840Pricier

Pricier than 43% of homes nearby

Price per ft²$392
CheaperTypical $446Pricier

Pricier than 34% of homes nearby

Living area1,638 ft²
SmallerTypical 1,596 ft²Bigger

Bigger than 53% of homes nearby

Lot size0.54 ac
SmallerTypical 0.35 acBigger

Bigger than 78% of homes nearby

Year built1974
OlderTypical 1987Newer

Newer than 20% of homes nearby

How 9 Grassy Knoll Cir ranks against every home in each area.
MeasureThis homeMashpee 02649Barnstable County
Estimated valuepricier than$641,89543% of homes36% of homes
Price per ft²pricier than$39234% of homes21% of homes
Living areabigger than1,638 ft²53% of homes54% of homes
Lot sizebigger than0.54 ac78% of homes66% of homes
Year builtnewer than197420% of homes47% of homes

About 9 Grassy Knoll Cir

How much is 9 Grassy Knoll Cir, Mashpee, MA worth?

The TopHap Estimate for 9 Grassy Knoll Cir, Mashpee, MA is $641,895 as of Aug 30, 2026. The likely range is $590,403 to $693,387. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 9 Grassy Knoll Cir, Mashpee, MA last sell?

9 Grassy Knoll Cir, Mashpee, MA last sold on Aug 22, 2008 for $275,700, according to the county's recorded deed.

How big is 9 Grassy Knoll Cir, Mashpee, MA?

9 Grassy Knoll Cir, Mashpee, MA has 3 bedrooms, 2 bathrooms, 1,638 square feet of living space and a 0.54-acre lot.

When was 9 Grassy Knoll Cir, Mashpee, MA built?

9 Grassy Knoll Cir, Mashpee, MA was built in 1974, making it 52 years old. It is a cape cod home. The building has 2 stories.

What schools serve 9 Grassy Knoll Cir, Mashpee, MA?

9 Grassy Knoll Cir, Mashpee, MA is assigned to Kenneth Coombs School (elementary); Mashpee Middle-High School (middle), rated C. All sit in Mashpee School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 9 Grassy Knoll Cir, Mashpee, MA compare to other homes in Mashpee 02649?

Among the 10,262 homes in Mashpee 02649, it is worth more than 43% of them ($641,895 against a typical $686,840), its price per square foot is higher than 34% of them ($392 against a typical $446), it is bigger than 53% of them (1,638 ft² against a typical 1,596 ft²), its lot is bigger than 78% of them (0.54 ac against a typical 0.35 ac) and it is newer than 20% of them (1974 against a typical 1987). Measured against all of Barnstable County, it is worth more than 36% 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 9 Grassy Knoll Cir, Mashpee, MA?

The 2025 property tax bill for 9 Grassy Knoll Cir, Mashpee, MA was $3,607. The county assessed it at $544,800.

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