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Single Family ResidenceResidential
$449,956$320 / 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 Aug 30, 2026
Last sold for $350,000 on Aug 31, 2021

30 OSBORN ST

WESTPORT, MA 02790
0
Baths
1,404 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.
0.11 ac
Lot SizeThe size of the land the home sits on, from county records.
1930
Year BuiltThe year the home was originally built, according to county records.
1
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$450K
$422K low$478K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$350,000 · Aug 31, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,667 (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.$358,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$141,700
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$216,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$434,245

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
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.1990
Lot (acres)The size of the land the home sits on, from county records.0.11
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
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(3)

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
Westport Elementary SchoolB-
Elementary · Grades 1–4 · 2.0 mi
M
Westport Middle-High SchoolC+
Middle · Grades 5–12 · 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.17,394
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%

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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

30 Osborn 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 less than 82% of homes in Westport 02790
  • Costs less per square foot than 72% of homes in Westport 02790
  • Smaller than 68% of homes in Westport 02790
  • Among the smallest lots in Westport 02790
  • Older than 86% of homes in Westport 02790

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
$338K$2.3M

This home is worth more than 18% 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$449,956
CheaperTypical $631,206Pricier

Pricier than 18% of homes nearby

Price per ft²$320
CheaperTypical $371Pricier

Pricier than 28% of homes nearby

Living area1,404 ft²
SmallerTypical 1,764 ft²Bigger

Bigger than 32% of homes nearby

Lot size0.11 ac
SmallerTypical 1 acBigger

Smaller than almost all homes nearby

Year built1930
OlderTypical 1972Newer

Newer than 14% of homes nearby

How 30 Osborn St ranks against every home in each area.
MeasureThis homeWestport 02790Bristol County
Estimated valuepricier than$449,95618% of homes31% of homes
Price per ft²pricier than$32028% of homes40% of homes
Living areabigger than1,404 ft²32% of homes35% of homes
Lot sizebigger than0.11 acalmost no homes11% of homes
Year builtnewer than193014% of homes28% of homes

About 30 Osborn St

How much is 30 Osborn St, Westport, MA worth?

The TopHap Estimate for 30 Osborn St, Westport, MA is $449,956 as of Aug 30, 2026. The likely range is $422,063 to $477,849. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 30 Osborn St, Westport, MA last sell?

30 Osborn St, Westport, MA last sold on Aug 31, 2021 for $350,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 30 Osborn St, Westport, MA?

30 Osborn St, Westport, MA has 1,404 square feet of living space and a 0.11-acre lot.

When was 30 Osborn St, Westport, MA built?

30 Osborn St, Westport, MA was built in 1930, making it 96 years old. It is a cape cod home.

What schools serve 30 Osborn St, Westport, MA?

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

How does 30 Osborn St, Westport, MA compare to other homes in Westport 02790?

Among the 7,201 homes in Westport 02790, it is worth more than 18% of them ($449,956 against a typical $631,206), its price per square foot is higher than 28% of them ($320 against a typical $371), it is bigger than 32% of them (1,404 ft² against a typical 1,764 ft²), its lot is bigger than almost none of them (0.11 ac against a typical 1 ac) and it is newer than 14% of them (1930 against a typical 1972). Measured against all of Bristol County, it is worth more than 31% 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 30 Osborn St, Westport, MA?

The 2025 property tax bill for 30 Osborn St, Westport, MA was $2,667. The county assessed it at $358,000.

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