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Duplex (2 Units, Any Combination)Residential
Last sold for $730,000 on Aug 18, 2026

598 OLD BASS RIVER RD

DENNIS, MA 02638
4
Beds
2
Baths
1,880 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.
0.61 ac
Lot SizeThe size of the land the home sits on, from county records.
1968
Year BuiltThe year the home was originally built, according to county records.
2
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

Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$730,000 · Aug 18, 2026

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,201 (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.$508,400 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$179,100
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$329,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$684,778

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.24 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.Duplex (2 Units, Any Combination)
StyleThe architectural style of the home, such as ranch or colonial.Duplex Single
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.0.61
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
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(4)

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
Mattacheese Middle SchoolC-
Middle · Grades 6–8 · 3.2 mi
H
Dennis Yarmouth Regional High SchoolD+
High · Grades 9–12 · 3.4 mi
E
Ezra H. Baker Innovation SchoolB-
Elementary · Grades PK–3 · 3.9 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

598 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.

  • Bigger than 66% of homes in Barnstable County
  • Has a bigger lot than 78% of homes in Dennis 02638
  • Older than 71% 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.

Living area1,880 ft²
SmallerTypical 1,660 ft²Bigger

Bigger than 60% of homes nearby

Lot size0.61 ac
SmallerTypical 0.43 acBigger

Bigger than 78% of homes nearby

Year built1968
OlderTypical 1976Newer

Newer than 29% of homes nearby

How 598 Old Bass River Rd ranks against every home in each area.
MeasureThis homeDennis 02638Barnstable County
Living areabigger than1,880 ft²60% of homes66% of homes
Lot sizebigger than0.61 ac78% of homes71% of homes
Year builtnewer than196829% of homes34% of homes

About 598 Old Bass River Rd

When did 598 Old Bass River Rd, Dennis, MA last sell?

598 Old Bass River Rd, Dennis, MA last sold on Aug 18, 2026 for $730,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 598 Old Bass River Rd, Dennis, MA?

598 Old Bass River Rd, Dennis, MA has 4 bedrooms, 2 bathrooms, 1,880 square feet of living space and a 0.61-acre lot.

When was 598 Old Bass River Rd, Dennis, MA built?

598 Old Bass River Rd, Dennis, MA was built in 1968, making it 58 years old. It is a duplex single home. The building has 2 stories.

What schools serve 598 Old Bass River Rd, Dennis, MA?

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

How does 598 Old Bass River Rd, Dennis, MA compare to other homes in Dennis 02638?

Among the 3,456 homes in Dennis 02638, it is bigger than 60% of them (1,880 ft² against a typical 1,660 ft²), its lot is bigger than 78% of them (0.61 ac against a typical 0.43 ac) and it is newer than 29% of them (1968 against a typical 1976). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 598 Old Bass River Rd, Dennis, MA?

The 2025 property tax bill for 598 Old Bass River Rd, Dennis, MA was $2,201. The county assessed it at $508,400.

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