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Single Family ResidenceResidential
$1,146,299$1,102 / 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 93How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026

15 CLAMSHELL LN

MASHPEE, MA 02649
3
Beds
1
Baths
1,040 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.
0.57 ac
Lot SizeThe size of the land the home sits on, from county records.
1973
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
5
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$1.1M
$1.1M low$1.2M high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,481 (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.$979,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$750,300
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$228,700
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$900,200

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.121 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.91%
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.1 percent flood zone

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.Contemporary
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.1982
Lot (acres)The size of the land the home sits on, from county records.0.57
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
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(1)

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.

M
Mashpee Middle-High SchoolC
Middle · Grades 7–12 · 3.1 mi
E
Kenneth Coombs School
Elementary · Grades PK–2 · 3.6 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

15 Clamshell Ln 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 77% of homes in Mashpee 02649
  • Costs more per square foot than 95% of homes in Mashpee 02649
  • Smaller than 86% of homes in Mashpee 02649
  • Has a bigger lot than 81% of homes in Mashpee 02649
  • Older than 81% 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
$342K$3.6M

This home is worth more than 77% 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$1,146,299
CheaperTypical $719,092Pricier

Pricier than 77% of homes nearby

Price per ft²$1102
CheaperTypical $461Pricier

Pricier than 95% of homes nearby

Living area1,040 ft²
SmallerTypical 1,582 ft²Bigger

Bigger than 14% of homes nearby

Lot size0.57 ac
SmallerTypical 0.35 acBigger

Bigger than 81% of homes nearby

Year built1973
OlderTypical 1987Newer

Newer than 19% of homes nearby

How 15 Clamshell Ln ranks against every home in each area.
MeasureThis homeMashpee 02649Barnstable County
Estimated valuepricier than$1,146,29977% of homes77% of homes
Price per ft²pricier than$110295% of homes94% of homes
Living areabigger than1,040 ft²14% of homes19% of homes
Lot sizebigger than0.57 ac81% of homes68% of homes
Year builtnewer than197319% of homes45% of homes

About 15 Clamshell Ln

How much is 15 Clamshell Ln, Mashpee, MA worth?

The TopHap Estimate for 15 Clamshell Ln, Mashpee, MA is $1,146,299 as of Jul 14, 2026. The likely range is $1,062,813 to $1,229,785. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

How big is 15 Clamshell Ln, Mashpee, MA?

15 Clamshell Ln, Mashpee, MA has 3 bedrooms, 1 bathrooms, 1,040 square feet of living space and a 0.57-acre lot.

When was 15 Clamshell Ln, Mashpee, MA built?

15 Clamshell Ln, Mashpee, MA was built in 1973, making it 53 years old. It is a contemporary home. The building has 1 story.

What schools serve 15 Clamshell Ln, Mashpee, MA?

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

How does 15 Clamshell Ln, Mashpee, MA compare to other homes in Mashpee 02649?

Among the 10,262 homes in Mashpee 02649, it is worth more than 77% of them ($1,146,299 against a typical $719,092), its price per square foot is higher than 95% of them ($1102 against a typical $461), it is bigger than 14% of them (1,040 ft² against a typical 1,582 ft²), its lot is bigger than 81% of them (0.57 ac against a typical 0.35 ac) and it is newer than 19% of them (1973 against a typical 1987). Measured against all of Barnstable County, it is worth more than 77% 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 15 Clamshell Ln, Mashpee, MA?

The 2025 property tax bill for 15 Clamshell Ln, Mashpee, MA was $6,481. The county assessed it at $979,000.

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