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Single Family ResidenceResidential
$1,527,313$716 / 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 98How 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 $500,000 on May 2, 2019

17 SEASIDE AVE

DENNIS, MA 02638
3
Beds
3.5
Baths
2,132 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.
0.46 ac
Lot SizeThe size of the land the home sits on, from county records.
1994
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

$1.5M
$1.5M low$1.6M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$500,000 · May 2, 2019

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,345 (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.$1,696,400 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$908,300
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$788,100
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,405,525

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.2000
Lot (acres)The size of the land the home sits on, from county records.0.46
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
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck

Transaction History(6)

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 · 4.8 mi
E
Ezra H. Baker Innovation SchoolB
Elementary · Grades PK–3 · 5.6 mi
M
Mattacheese Middle SchoolB-
Middle · Grades 6–8 · 6.0 mi

District: Dennis-Yarmouth School District

Neighborhood · ZIP 02638These 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.106
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.96
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.48

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.53%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.23%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.4%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.2%
PopulationHow many people live in this area.3,396
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.480 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$106,812
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$121,835
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

17 Seaside Ave 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 88% of homes in Barnstable County
  • Costs more per square foot than 81% of homes in Barnstable County
  • Bigger than 75% of homes in Barnstable County
  • Newer than 81% of homes in Dennis 02638

What homes are worth in Dennis 02638

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

This home
$357K$3.2M

This home is worth more than 79% of homes in Dennis 02638.

How it measures up in Dennis 02638

The dot is this home. The mark in the middle is the typical home in Dennis 02638.

Estimated value$1,527,313
CheaperTypical $954,171Pricier

Pricier than 79% of homes nearby

Price per ft²$716
CheaperTypical $578Pricier

Pricier than 72% of homes nearby

Living area2,132 ft²
SmallerTypical 1,664 ft²Bigger

Bigger than 70% of homes nearby

Lot size0.46 ac
SmallerTypical 0.44 acBigger

Bigger than 60% of homes nearby

Year built1994
OlderTypical 1976Newer

Newer than 81% of homes nearby

How 17 Seaside Ave ranks against every home in each area.
MeasureThis homeDennis 02638Barnstable County
Estimated valuepricier than$1,527,31379% of homes88% of homes
Price per ft²pricier than$71672% of homes81% of homes
Living areabigger than2,132 ft²70% of homes75% of homes
Lot sizebigger than0.46 ac60% of homes55% of homes
Year builtnewer than199481% of homes81% of homes

About 17 Seaside Ave

How much is 17 Seaside Ave, Dennis, MA worth?

The TopHap Estimate for 17 Seaside Ave, Dennis, MA is $1,527,313 as of Aug 30, 2026. The likely range is $1,499,150 to $1,555,476. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 17 Seaside Ave, Dennis, MA last sell?

17 Seaside Ave, Dennis, MA last sold on May 2, 2019 for $500,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 17 Seaside Ave, Dennis, MA?

17 Seaside Ave, Dennis, MA has 3 bedrooms, 3.5 bathrooms, 2,132 square feet of living space and a 0.46-acre lot.

When was 17 Seaside Ave, Dennis, MA built?

17 Seaside Ave, Dennis, MA was built in 1994, making it 32 years old. It is a cape cod home. The building has 2 stories.

What schools serve 17 Seaside Ave, Dennis, MA?

17 Seaside Ave, Dennis, 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 17 Seaside Ave, Dennis, MA compare to other homes in Dennis 02638?

Among the 3,456 homes in Dennis 02638, it is worth more than 79% of them ($1,527,313 against a typical $954,171), its price per square foot is higher than 72% of them ($716 against a typical $578), it is bigger than 70% of them (2,132 ft² against a typical 1,664 ft²), its lot is bigger than 60% of them (0.46 ac against a typical 0.44 ac) and it is newer than 81% of them (1994 against a typical 1976). Measured against all of Barnstable County, it is worth more than 88% 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 17 Seaside Ave, Dennis, MA?

The 2025 property tax bill for 17 Seaside Ave, Dennis, MA was $7,345. The county assessed it at $1,696,400.

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