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Single Family ResidenceResidential
$429,571$331 / 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 95How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026
Last sold for $205,000 on Jun 12, 2020

280 ONSET AVE

WAREHAM, MA 02571
2
Beds
2
Baths
1,296 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.
0.14 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.
2
StoriesHow many floors the home has above ground.
5
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$430K
$410K low$449K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$205,000 · Jun 12, 2020

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,219 (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.$384,200 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$95,600
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$288,600
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$309,510

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.120 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.80%
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.1 percent flood zone

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.Conventional
CountyPLYMOUTH
Lot (acres)The size of the land the home sits on, from county records.0.14
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

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
Wareham High SchoolD+
High · Grades 9–12 · 2.9 mi
M
Wareham Middle SchoolB-
Middle · Grades 5–8 · 3.1 mi
E
John W. Decas Elementary
Elementary · Grades KG–2 · 4.5 mi

District: Wareham School District

Neighborhood · ZIP 02571These 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.144
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.91
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.58

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.81%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.22%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.0%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.10,755
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.386 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$74,919
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$99,418
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

280 Onset 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 less than 88% of homes in Plymouth County
  • Costs less per square foot than 74% of homes in Wareham 02571
  • Smaller than 74% of homes in Plymouth County
  • Has a smaller lot than 89% of homes in Plymouth County
  • Older than 71% of homes in Plymouth County

What homes are worth in Wareham 02571

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

This home
$253K$1.2M

This home is worth more than 38% of homes in Wareham 02571.

How it measures up in Wareham 02571

The dot is this home. The mark in the middle is the typical home in Wareham 02571.

Estimated value$429,571
CheaperTypical $464,661Pricier

Pricier than 38% of homes nearby

Price per ft²$331
CheaperTypical $396Pricier

Pricier than 26% of homes nearby

Living area1,296 ft²
SmallerTypical 1,224 ft²Bigger

Bigger than 54% of homes nearby

Lot size0.14 ac
SmallerTypical 0.22 acBigger

Bigger than 35% of homes nearby

Year built1950
OlderTypical 1952Newer

Newer than 50% of homes nearby

How 280 Onset Ave ranks against every home in each area.
MeasureThis homeWareham 02571Plymouth County
Estimated valuepricier than$429,57138% of homes12% of homes
Price per ft²pricier than$33126% of homes27% of homes
Living areabigger than1,296 ft²54% of homes26% of homes
Lot sizebigger than0.14 ac35% of homes11% of homes
Year builtnewer than195050% of homes29% of homes

About 280 Onset Ave

How much is 280 Onset Ave, Wareham, MA worth?

The TopHap Estimate for 280 Onset Ave, Wareham, MA is $429,571 as of Sep 24, 2026. The likely range is $410,114 to $449,028. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 280 Onset Ave, Wareham, MA last sell?

280 Onset Ave, Wareham, MA last sold on Jun 12, 2020 for $205,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 280 Onset Ave, Wareham, MA?

280 Onset Ave, Wareham, MA has 2 bedrooms, 2 bathrooms, 1,296 square feet of living space and a 0.14-acre lot.

When was 280 Onset Ave, Wareham, MA built?

280 Onset Ave, Wareham, MA was built in 1950, making it 76 years old. It is a conventional home. The building has 2 stories.

What schools serve 280 Onset Ave, Wareham, MA?

280 Onset Ave, Wareham, MA is assigned to Wareham High School (high), rated D+; Wareham Middle School (middle), rated B-; John W. Decas Elementary (elementary). All sit in Wareham School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 280 Onset Ave, Wareham, MA compare to other homes in Wareham 02571?

Among the 6,211 homes in Wareham 02571, it is worth more than 38% of them ($429,571 against a typical $464,661), its price per square foot is higher than 26% of them ($331 against a typical $396), it is bigger than 54% of them (1,296 ft² against a typical 1,224 ft²), its lot is bigger than 35% of them (0.14 ac against a typical 0.22 ac) and it is newer than 50% of them (1950 against a typical 1952). Measured against all of Plymouth County, it is worth more than 12% 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 280 Onset Ave, Wareham, MA?

The 2025 property tax bill for 280 Onset Ave, Wareham, MA was $4,219. The county assessed it at $384,200.

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