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Single Family ResidenceResidential
$818,781$922 / 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 91How 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

71 SEA ST

DENNIS PORT, MA 02639
2
Beds
1
Baths
888 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.
0.44 ac
Lot SizeThe size of the land the home sits on, from county records.
1956
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

$819K
$742K low$896K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,973 (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.$686,700 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$444,800
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$241,900
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$686,700

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.15 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.Ranch
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.0.44
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.Electric
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(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.

H
Dennis Yarmouth Regional High SchoolC
High · Grades 9–12 · 5.4 mi
E
Ezra H. Baker Innovation SchoolB
Elementary · Grades PK–3 · 5.5 mi
M
Mattacheese Middle SchoolB-
Middle · Grades 6–8 · 7.1 mi

District: Dennis-Yarmouth School District

Neighborhood · ZIP 02639These 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.182
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 100.46

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.37%
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.12%
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.3,359
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,086 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$59,475
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$84,740
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.45 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

71 Sea St 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 Dennis Port 02639
  • Costs more per square foot than 94% of homes in Dennis Port 02639
  • Smaller than 89% of homes in Barnstable County
  • Has a bigger lot than 86% of homes in Dennis Port 02639
  • Older than 80% of homes in Barnstable County

What homes are worth in Dennis Port 02639

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

This home
$146K$1.4M

This home is worth more than 87% of homes in Dennis Port 02639.

How it measures up in Dennis Port 02639

The dot is this home. The mark in the middle is the typical home in Dennis Port 02639.

Estimated value$818,781
CheaperTypical $565,603Pricier

Pricier than 87% of homes nearby

Price per ft²$922
CheaperTypical $594Pricier

Pricier than 94% of homes nearby

Living area888 ft²
SmallerTypical 952 ft²Bigger

Bigger than 43% of homes nearby

Lot size0.44 ac
SmallerTypical 0.18 acBigger

Bigger than 86% of homes nearby

Year built1956
OlderTypical 1960Newer

Newer than 42% of homes nearby

How 71 Sea St ranks against every home in each area.
MeasureThis homeDennis Port 02639Barnstable County
Estimated valuepricier than$818,78187% of homes57% of homes
Price per ft²pricier than$92294% of homes90% of homes
Living areabigger than888 ft²43% of homes11% of homes
Lot sizebigger than0.44 ac86% of homes50% of homes
Year builtnewer than195642% of homes20% of homes

About 71 Sea St

How much is 71 Sea St, Dennis Port, MA worth?

The TopHap Estimate for 71 Sea St, Dennis Port, MA is $818,781 as of Sep 24, 2026. The likely range is $741,612 to $895,950. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

How big is 71 Sea St, Dennis Port, MA?

71 Sea St, Dennis Port, MA has 2 bedrooms, 1 bathrooms, 888 square feet of living space and a 0.44-acre lot.

When was 71 Sea St, Dennis Port, MA built?

71 Sea St, Dennis Port, MA was built in 1956, making it 70 years old. It is a ranch home. The building has 1 story.

What schools serve 71 Sea St, Dennis Port, MA?

71 Sea St, Dennis Port, MA is assigned to Dennis Yarmouth Regional High School (high), rated C; Ezra H. Baker Innovation School (elementary), rated B; Mattacheese Middle School (middle), rated B-. All sit in Dennis-Yarmouth School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 71 Sea St, Dennis Port, MA compare to other homes in Dennis Port 02639?

Among the 4,259 homes in Dennis Port 02639, it is worth more than 87% of them ($818,781 against a typical $565,603), its price per square foot is higher than 94% of them ($922 against a typical $594), it is bigger than 43% of them (888 ft² against a typical 952 ft²), its lot is bigger than 86% of them (0.44 ac against a typical 0.18 ac) and it is newer than 42% of them (1956 against a typical 1960). Measured against all of Barnstable County, it is worth more than 57% 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 71 Sea St, Dennis Port, MA?

The 2025 property tax bill for 71 Sea St, Dennis Port, MA was $2,973. The county assessed it at $686,700.

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