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CondominiumResidential
$688,208$989 / 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 83How 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 $645,000 on Aug 21, 2025

138 SEA ST

DENNIS PORT, MA 02639
Building report
2
Beds
1
Baths
696 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.
0.17 ac
Lot SizeThe size of the land the home sits on, from county records.
1960
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
4
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$688K
$570K low$807K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$645,000 · Aug 21, 2025

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,451 (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.$335,200 (2025)
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$335,200
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$602,300

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Condominium
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.2001
Lot (acres)The size of the land the home sits on, from county records.0.17
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.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.Yes
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(7)

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
Ezra H. Baker Innovation SchoolB
Elementary · Grades PK–3 · 1.4 mi
H
Dennis Yarmouth Regional High SchoolC
High · Grades 9–12 · 3.6 mi
M
Mattacheese Middle SchoolB-
Middle · Grades 6–8 · 3.9 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

138 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 76% of homes in Dennis Port 02639
  • Costs more per square foot than 96% of homes in Dennis Port 02639
  • Smaller than 95% of homes in Barnstable County
  • Has a smaller lot than 93% of homes in Barnstable County
  • Older than 75% 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 76% 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$688,208
CheaperTypical $565,603Pricier

Pricier than 76% of homes nearby

Price per ft²$989
CheaperTypical $594Pricier

Pricier than 96% of homes nearby

Living area696 ft²
SmallerTypical 952 ft²Bigger

Bigger than 27% of homes nearby

Lot size0.17 ac
SmallerTypical 0.18 acBigger

Bigger than 39% of homes nearby

Year built1960
OlderTypical 1960Newer

Newer than 55% of homes nearby

How 138 Sea St ranks against every home in each area.
MeasureThis homeDennis Port 02639Barnstable County
Estimated valuepricier than$688,20876% of homes42% of homes
Price per ft²pricier than$98996% of homes91% of homes
Living areabigger than696 ft²27% of homes5% of homes
Lot sizebigger than0.17 ac39% of homes7% of homes
Year builtnewer than196055% of homes25% of homes

About 138 Sea St

How much is 138 Sea St, Dennis Port, MA worth?

The TopHap Estimate for 138 Sea St, Dennis Port, MA is $688,208 as of Sep 24, 2026. The likely range is $569,605 to $806,811. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 138 Sea St, Dennis Port, MA last sell?

138 Sea St, Dennis Port, MA last sold on Aug 21, 2025 for $645,000, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 138 Sea St, Dennis Port, MA?

138 Sea St, Dennis Port, MA has 2 bedrooms, 1 bathrooms, 696 square feet of living space and a 0.17-acre lot.

When was 138 Sea St, Dennis Port, MA built?

138 Sea St, Dennis Port, MA was built in 1960, making it 66 years old. It is a ranch home. The building has 1 story.

What schools serve 138 Sea St, Dennis Port, MA?

138 Sea St, Dennis Port, MA is assigned to Ezra H. Baker Innovation School (elementary), rated B; Dennis Yarmouth Regional High School (high), rated C; 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 138 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 76% of them ($688,208 against a typical $565,603), its price per square foot is higher than 96% of them ($989 against a typical $594), it is bigger than 27% of them (696 ft² against a typical 952 ft²), its lot is bigger than 39% of them (0.17 ac against a typical 0.18 ac) and it is newer than 55% of them (1960 against a typical 1960). Measured against all of Barnstable County, it is worth more than 42% 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 138 Sea St, Dennis Port, MA?

The 2025 property tax bill for 138 Sea St, Dennis Port, MA was $1,451. The county assessed it at $335,200.

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