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Single Family ResidenceResidential
$510,100$268 / 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 93How 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 $489,500 on Dec 18, 2025

578 UNION ST

NEW BEDFORD, MA 02740
4
Beds
2.5
Baths
1,905 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.
3,402 ft²
Lot SizeThe size of the land the home sits on, from county records.
1910
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.

Valuation

$510K
$476K low$544K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$489,500 · Dec 18, 2025

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,689 (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.$414,600 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$116,700
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$297,900
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$379,700
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$454,670

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
Lot (acres)The size of the land the home sits on, from county records.0.08
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Radiant
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, Detached
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(14)

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
Betsey B. Winslow Elementary SchoolD+
Elementary · Grades PK–5 · 0.5 mi
H
New Bedford High SchoolF
High · Grades 9–12 · 0.8 mi
M
Keith Middle SchoolD-
Middle · Grades 6–8 · 1.0 mi

District: New Bedford School District

Neighborhood · ZIP 02740These 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.140
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.88
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.61

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.94%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.13%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.19%
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.46,465
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.7,186 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$54,542
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$71,876
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.50 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

578 Union 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 more than 84% of homes in New Bedford 02740
  • Costs less per square foot than 86% of homes in Bristol County
  • Has a smaller lot than 96% of homes in Bristol County
  • Older than 83% of homes in Bristol County

What homes are worth in New Bedford 02740

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

This home
$258K$673K

This home is worth more than 84% of homes in New Bedford 02740.

How it measures up in New Bedford 02740

The dot is this home. The mark in the middle is the typical home in New Bedford 02740.

Estimated value$510,100
CheaperTypical $416,922Pricier

Pricier than 84% of homes nearby

Price per ft²$268
CheaperTypical $297Pricier

Pricier than 32% of homes nearby

Living area1,905 ft²
SmallerTypical 1,799 ft²Bigger

Bigger than 54% of homes nearby

Lot size3,402 ft²
SmallerTypical 4,312 ft²Bigger

Bigger than 32% of homes nearby

Year built1910
OlderTypical 1910Newer

Newer than 53% of homes nearby

How 578 Union St ranks against every home in each area.
MeasureThis homeNew Bedford 02740Bristol County
Estimated valuepricier than$510,10084% of homes47% of homes
Price per ft²pricier than$26832% of homes14% of homes
Living areabigger than1,905 ft²54% of homes60% of homes
Lot sizebigger than3,402 ft²32% of homes4% of homes
Year builtnewer than191053% of homes17% of homes

About 578 Union St

How much is 578 Union St, New Bedford, MA worth?

The TopHap Estimate for 578 Union St, New Bedford, MA is $510,100 as of Sep 24, 2026. The likely range is $475,962 to $544,238. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 578 Union St, New Bedford, MA last sell?

578 Union St, New Bedford, MA last sold on Dec 18, 2025 for $489,500, according to the county's recorded deed. TopHap holds 7 recorded sales for this parcel.

How big is 578 Union St, New Bedford, MA?

578 Union St, New Bedford, MA has 4 bedrooms, 2.5 bathrooms, 1,905 square feet of living space and a 0.08-acre lot.

When was 578 Union St, New Bedford, MA built?

578 Union St, New Bedford, MA was built in 1910, making it 116 years old. It is a colonial home. The building has 2 stories.

What schools serve 578 Union St, New Bedford, MA?

578 Union St, New Bedford, MA is assigned to Betsey B. Winslow Elementary School (elementary), rated D+; New Bedford High School (high), rated F; Keith Middle School (middle), rated D-. All sit in New Bedford School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 578 Union St, New Bedford, MA compare to other homes in New Bedford 02740?

Among the 9,711 homes in New Bedford 02740, it is worth more than 84% of them ($510,100 against a typical $416,922), its price per square foot is higher than 32% of them ($268 against a typical $297), it is bigger than 54% of them (1,905 ft² against a typical 1,799 ft²), its lot is bigger than 32% of them (3,402 ft² against a typical 4,312 ft²) and it is newer than 53% of them (1910 against a typical 1910). Measured against all of Bristol County, it is worth more than 47% 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 578 Union St, New Bedford, MA?

The 2025 property tax bill for 578 Union St, New Bedford, MA was $4,689. The county assessed it at $414,600.

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