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Single Family ResidenceResidential
$803,320$273 / 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 94How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026
Last sold for $434,000 on Apr 28, 2004

21 RIVERVIEW DR

WESTPORT, MA 02790
3
Beds
0
Baths
2,940 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.
1.5 ac
Lot SizeThe size of the land the home sits on, from county records.
1978
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
7
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$803K
$756K low$851K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$434,000 · Apr 28, 2004
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$425,820
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$340,656
Loan-to-ValueHow much is still owed on the home compared to what it is worth. 80% means loans equal 80% of our estimate, so it shifts when the estimate does.47%
1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$377,500
ST ANNE CU · recorded Mar 24, 2009

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,766 (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.$639,700 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$251,700
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$388,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$639,700

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.Colonial
CountyBristol
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.1998
Lot (acres)The size of the land the home sits on, from county records.1.50
ConstructionThe main material the home's frame and walls are built from.Concrete
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
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
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(5)

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
Westport Middle-High SchoolC+
Middle · Grades 5–12 · 2.0 mi
E
Westport Elementary SchoolB-
Elementary · Grades 1–4 · 2.2 mi

District: Westport School District

Neighborhood · ZIP 02790These 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.76
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.95
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.62

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.88%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.17%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.2%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.17,393
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.271 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$94,082
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$122,569
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.49 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.52%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
Company ownedWhether the owner is a company or trust rather than a person.No

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

21 Riverview Dr 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 Bristol County
  • Costs less per square foot than 88% of homes in Westport 02790
  • Bigger than 88% of homes in Bristol County
  • Has a bigger lot than 86% of homes in Bristol County

What homes are worth in Westport 02790

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

This home
$337K$2.4M

This home is worth more than 66% of homes in Westport 02790.

How it measures up in Westport 02790

The dot is this home. The mark in the middle is the typical home in Westport 02790.

Estimated value$803,320
CheaperTypical $653,716Pricier

Pricier than 66% of homes nearby

Price per ft²$273
CheaperTypical $379Pricier

Pricier than 12% of homes nearby

Living area2,940 ft²
SmallerTypical 1,764 ft²Bigger

Bigger than 87% of homes nearby

Lot size1.5 ac
SmallerTypical 1 acBigger

Bigger than 70% of homes nearby

Year built1978
OlderTypical 1972Newer

Newer than 57% of homes nearby

How 21 Riverview Dr ranks against every home in each area.
MeasureThis homeWestport 02790Bristol County
Estimated valuepricier than$803,32066% of homes87% of homes
Price per ft²pricier than$27312% of homes16% of homes
Living areabigger than2,940 ft²87% of homes88% of homes
Lot sizebigger than1.5 ac70% of homes86% of homes
Year builtnewer than197857% of homes63% of homes

About 21 Riverview Dr

How much is 21 Riverview Dr, Westport, MA worth?

The TopHap Estimate for 21 Riverview Dr, Westport, MA is $803,320 as of Jul 14, 2026. The likely range is $755,567 to $851,073. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Riverview Dr, Westport, MA last sell?

21 Riverview Dr, Westport, MA last sold on Apr 28, 2004 for $434,000, according to the county's recorded deed.

How big is 21 Riverview Dr, Westport, MA?

21 Riverview Dr, Westport, MA has 3 bedrooms, 2,940 square feet of living space and a 1.50-acre lot.

When was 21 Riverview Dr, Westport, MA built?

21 Riverview Dr, Westport, MA was built in 1978, making it 48 years old. It is a colonial home. The building has 2 stories.

What schools serve 21 Riverview Dr, Westport, MA?

21 Riverview Dr, Westport, MA is assigned to Westport Middle-High School (middle), rated C+; Westport Elementary School (elementary), rated B-. All sit in Westport School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Riverview Dr, Westport, MA compare to other homes in Westport 02790?

Among the 7,201 homes in Westport 02790, it is worth more than 66% of them ($803,320 against a typical $653,716), its price per square foot is higher than 12% of them ($273 against a typical $379), it is bigger than 87% of them (2,940 ft² against a typical 1,764 ft²), its lot is bigger than 70% of them (1.5 ac against a typical 1 ac) and it is newer than 57% of them (1978 against a typical 1972). Measured against all of Bristol County, it is worth more than 87% 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 21 Riverview Dr, Westport, MA?

The 2025 property tax bill for 21 Riverview Dr, Westport, MA was $4,766. The county assessed it at $639,700.

More homes on Riverview Dr

Closest homes

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Assigned schools

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