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Single Family ResidenceResidential
$329,883$382 / 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 92How 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

21 4TH ST

SWANSEA, MA 02777
2
Beds
1
Baths
864 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.
0.15 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.
1
StoriesHow many floors the home has above ground.
4
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$330K
$304K low$356K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,457 (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.$290,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$131,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$159,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$288,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$367,745

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.68 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.62%
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.Ranch
CountyBRISTOL
Lot (acres)The size of the land the home sits on, from county records.0.15
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.Forced Air With Air Conditioning
PoolWhether the property has a pool, and what kind, such as in-ground.No
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(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.

M
Joseph Case Jr High SchoolB-
Middle · Grades 6–8 · 0.8 mi
H
Joseph Case High SchoolB-
High · Grades 9–12 · 1.2 mi
E
Gardner
Elementary · Grades KG–2 · 1.2 mi

District: Swansea School District

Neighborhood · ZIP 02777These 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.53
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.98
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.97%
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.1.5%
PopulationHow many people live in this area.17,457
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.692 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$107,907
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$124,912
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

21 4th 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 96% of homes in Swansea 02777
  • Costs more per square foot than 71% of homes in Bristol County
  • Smaller than 95% of homes in Bristol County
  • Has a smaller lot than 86% of homes in Swansea 02777
  • Older than 68% of homes in Swansea 02777

What homes are worth in Swansea 02777

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

This home
$294K$1M

This home is worth more than 4% of homes in Swansea 02777.

How it measures up in Swansea 02777

The dot is this home. The mark in the middle is the typical home in Swansea 02777.

Estimated value$329,883
CheaperTypical $497,767Pricier

Pricier than 4% of homes nearby

Price per ft²$382
CheaperTypical $365Pricier

Pricier than 59% of homes nearby

Living area864 ft²
SmallerTypical 1,410 ft²Bigger

Bigger than 6% of homes nearby

Lot size0.15 ac
SmallerTypical 0.42 acBigger

Bigger than 14% of homes nearby

Year built1950
OlderTypical 1966Newer

Newer than 32% of homes nearby

How 21 4th St ranks against every home in each area.
MeasureThis homeSwansea 02777Bristol County
Estimated valuepricier than$329,8834% of homes6% of homes
Price per ft²pricier than$38259% of homes71% of homes
Living areabigger than864 ft²6% of homes5% of homes
Lot sizebigger than0.15 ac14% of homes20% of homes
Year builtnewer than195032% of homes35% of homes

About 21 4th St

How much is 21 4th St, Swansea, MA worth?

The TopHap Estimate for 21 4th St, Swansea, MA is $329,883 as of Aug 30, 2026. The likely range is $304,016 to $355,750. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 4th St, Swansea, MA last sell?

21 4th St, Swansea, MA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 21 4th St, Swansea, MA?

21 4th St, Swansea, MA has 2 bedrooms, 1 bathrooms, 864 square feet of living space and a 0.15-acre lot.

When was 21 4th St, Swansea, MA built?

21 4th St, Swansea, MA was built in 1950, making it 76 years old. It is a ranch home. The building has 1 story.

What schools serve 21 4th St, Swansea, MA?

21 4th St, Swansea, MA is assigned to Joseph Case Jr High School (middle), rated B-; Joseph Case High School (high), rated B-; Gardner (elementary). All sit in Swansea School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 4th St, Swansea, MA compare to other homes in Swansea 02777?

Among the 6,446 homes in Swansea 02777, it is worth more than 4% of them ($329,883 against a typical $497,767), its price per square foot is higher than 59% of them ($382 against a typical $365), it is bigger than 6% of them (864 ft² against a typical 1,410 ft²), its lot is bigger than 14% of them (0.15 ac against a typical 0.42 ac) and it is newer than 32% of them (1950 against a typical 1966). Measured against all of Bristol County, it is worth more than 6% 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 4th St, Swansea, MA?

The 2025 property tax bill for 21 4th St, Swansea, MA was $3,457. The county assessed it at $290,000.

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