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Duplex (2 Units, Any Combination)Residential

271 ONSET AVE

WAREHAM, MA 02571
4
Beds
2
Baths
2,186 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.
0.37 ac
Lot SizeThe size of the land the home sits on, from county records.
1902
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.

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,038 (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.$367,800 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$146,400
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$221,400
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$367,800

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.53
99
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
5
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
45
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
91
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
29
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.117 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.85%
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.Duplex (2 Units, Any Combination)
StyleThe architectural style of the home, such as ranch or colonial.Two Family
CountyPlymouth
Lot (acres)The size of the land the home sits on, from county records.0.37
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

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 · 3.1 mi
M
Wareham Middle SchoolB-
Middle · Grades 5–8 · 3.4 mi
E
John W. Decas Elementary
Elementary · Grades KG–2 · 4.8 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

271 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.

  • Bigger than 89% of homes in Wareham 02571
  • Has a bigger lot than 73% of homes in Wareham 02571
  • Older than 91% 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.

Living area2,186 ft²
SmallerTypical 1,224 ft²Bigger

Bigger than 89% of homes nearby

Lot size0.37 ac
SmallerTypical 0.22 acBigger

Bigger than 73% of homes nearby

Year built1902
OlderTypical 1951Newer

Newer than 9% of homes nearby

How 271 Onset Ave ranks against every home in each area.
MeasureThis homeWareham 02571Plymouth County
Living areabigger than2,186 ft²89% of homes70% of homes
Lot sizebigger than0.37 ac73% of homes42% of homes
Year builtnewer than19029% of homes10% of homes

About 271 Onset Ave

When did 271 Onset Ave, Wareham, MA last sell?

271 Onset Ave, Wareham, MA last sold on Apr 30, 1984, according to the county's recorded deed.

How big is 271 Onset Ave, Wareham, MA?

271 Onset Ave, Wareham, MA has 4 bedrooms, 2 bathrooms, 2,186 square feet of living space and a 0.37-acre lot.

When was 271 Onset Ave, Wareham, MA built?

271 Onset Ave, Wareham, MA was built in 1902, making it 124 years old. It is a two family home. The building has 2 stories.

What schools serve 271 Onset Ave, Wareham, MA?

271 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 271 Onset Ave, Wareham, MA compare to other homes in Wareham 02571?

Among the 6,211 homes in Wareham 02571, it is bigger than 89% of them (2,186 ft² against a typical 1,224 ft²), its lot is bigger than 73% of them (0.37 ac against a typical 0.22 ac) and it is newer than 9% of them (1902 against a typical 1951). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 271 Onset Ave, Wareham, MA?

The 2025 property tax bill for 271 Onset Ave, Wareham, MA was $4,038. The county assessed it at $367,800.

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