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Single Family ResidenceResidential
$801,905$462 / 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 84How 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

571 OLD BASS RIVER RD

DENNIS, MA 02638
4
Beds
2
Baths
1,734 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.
1.41 ac
Lot SizeThe size of the land the home sits on, from county records.
1950
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$802K
$670K low$933K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,351 (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.$774,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$222,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$551,500
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$673,170

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.22 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.1990
Lot (acres)The size of the land the home sits on, from county records.1.41
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
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

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 · 3.3 mi
E
Ezra H. Baker Innovation SchoolB
Elementary · Grades PK–3 · 3.8 mi
M
Mattacheese Middle SchoolB-
Middle · Grades 6–8 · 5.0 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

571 Old Bass River Rd 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 Dennis 02638
  • Has a bigger lot than 94% of homes in Dennis 02638
  • Older than 87% 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
$359K$3.1M

This home is worth more than 37% 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$801,905
CheaperTypical $945,422Pricier

Pricier than 37% of homes nearby

Price per ft²$462
CheaperTypical $578Pricier

Pricier than 21% of homes nearby

Living area1,734 ft²
SmallerTypical 1,652 ft²Bigger

Bigger than 53% of homes nearby

Lot size1.41 ac
SmallerTypical 0.43 acBigger

Bigger than 94% of homes nearby

Year built1950
OlderTypical 1975Newer

Newer than 13% of homes nearby

How 571 Old Bass River Rd ranks against every home in each area.
MeasureThis homeDennis 02638Barnstable County
Estimated valuepricier than$801,90537% of homes56% of homes
Price per ft²pricier than$46221% of homes40% of homes
Living areabigger than1,734 ft²53% of homes59% of homes
Lot sizebigger than1.41 ac94% of homes93% of homes
Year builtnewer than195013% of homes16% of homes

About 571 Old Bass River Rd

How much is 571 Old Bass River Rd, Dennis, MA worth?

The TopHap Estimate for 571 Old Bass River Rd, Dennis, MA is $801,905 as of Aug 30, 2026. The likely range is $670,493 to $933,317. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 571 Old Bass River Rd, Dennis, MA last sell?

571 Old Bass River Rd, Dennis, MA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 571 Old Bass River Rd, Dennis, MA?

571 Old Bass River Rd, Dennis, MA has 4 bedrooms, 2 bathrooms, 1,734 square feet of living space and a 1.41-acre lot.

When was 571 Old Bass River Rd, Dennis, MA built?

571 Old Bass River Rd, Dennis, MA was built in 1950, making it 76 years old. It is a ranch home. The building has 1 story.

What schools serve 571 Old Bass River Rd, Dennis, MA?

571 Old Bass River Rd, 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 571 Old Bass River Rd, Dennis, MA compare to other homes in Dennis 02638?

Among the 3,456 homes in Dennis 02638, it is worth more than 37% of them ($801,905 against a typical $945,422), its price per square foot is higher than 21% of them ($462 against a typical $578), it is bigger than 53% of them (1,734 ft² against a typical 1,652 ft²), its lot is bigger than 94% of them (1.41 ac against a typical 0.43 ac) and it is newer than 13% of them (1950 against a typical 1975). Measured against all of Barnstable County, it is worth more than 56% 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 571 Old Bass River Rd, Dennis, MA?

The 2025 property tax bill for 571 Old Bass River Rd, Dennis, MA was $3,351. The county assessed it at $774,000.

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