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Single Family ResidenceResidential
$590,794$469 / 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 91How 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 $140,000 on Dec 15, 1989

491 UNION ST

BRAINTREE, MA 02184
3
Beds
2
Baths
1,260 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.
0.19 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.
6
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$591K
$540K low$642K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$140,000 · Dec 15, 1989

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,604 (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.$561,500 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$301,600
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$259,900
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$625,385

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
CountyNORFOLK
Lot (acres)The size of the land the home sits on, from county records.0.19
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.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(2)

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
East Middle SchoolB
Middle · Grades 6–8 · 0.3 mi
E
Morrison SchoolB
Elementary · Grades KG–5 · 0.5 mi
H
Braintree High SchoolA-
High · Grades 9–12 · 1.9 mi

District: Braintree School District

Neighborhood · ZIP 02184These 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.79
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.102
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.70

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.28%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.8%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.2%
PopulationHow many people live in this area.39,764
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,454 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$118,419
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$146,591
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.48 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

491 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 less than 75% of homes in Braintree 02184
  • Costs more per square foot than 79% of homes in Braintree 02184
  • Smaller than 80% of homes in Braintree 02184
  • Has a smaller lot than 77% of homes in Norfolk County

What homes are worth in Braintree 02184

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

This home
$352K$1.3M

This home is worth more than 25% of homes in Braintree 02184.

How it measures up in Braintree 02184

The dot is this home. The mark in the middle is the typical home in Braintree 02184.

Estimated value$590,794
CheaperTypical $697,984Pricier

Pricier than 25% of homes nearby

Price per ft²$469
CheaperTypical $406Pricier

Pricier than 79% of homes nearby

Living area1,260 ft²
SmallerTypical 1,753 ft²Bigger

Bigger than 20% of homes nearby

Lot size0.19 ac
SmallerTypical 0.28 acBigger

Bigger than 30% of homes nearby

Year built1950
OlderTypical 1953Newer

Newer than 45% of homes nearby

How 491 Union St ranks against every home in each area.
MeasureThis homeBraintree 02184Norfolk County
Estimated valuepricier than$590,79425% of homes28% of homes
Price per ft²pricier than$46979% of homes57% of homes
Living areabigger than1,260 ft²20% of homes26% of homes
Lot sizebigger than0.19 ac30% of homes23% of homes
Year builtnewer than195045% of homes39% of homes

About 491 Union St

How much is 491 Union St, Braintree, MA worth?

The TopHap Estimate for 491 Union St, Braintree, MA is $590,794 as of Sep 24, 2026. The likely range is $539,563 to $642,025. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 491 Union St, Braintree, MA last sell?

491 Union St, Braintree, MA last sold on Dec 15, 1989 for $140,000, according to the county's recorded deed.

How big is 491 Union St, Braintree, MA?

491 Union St, Braintree, MA has 3 bedrooms, 2 bathrooms, 1,260 square feet of living space and a 0.19-acre lot.

When was 491 Union St, Braintree, MA built?

491 Union St, Braintree, MA was built in 1950, making it 76 years old. It is a cape cod home. The building has 2 stories.

What schools serve 491 Union St, Braintree, MA?

491 Union St, Braintree, MA is assigned to East Middle School (middle), rated B; Morrison School (elementary), rated B; Braintree High School (high), rated A-. All sit in Braintree School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 491 Union St, Braintree, MA compare to other homes in Braintree 02184?

Among the 11,600 homes in Braintree 02184, it is worth more than 25% of them ($590,794 against a typical $697,984), its price per square foot is higher than 79% of them ($469 against a typical $406), it is bigger than 20% of them (1,260 ft² against a typical 1,753 ft²), its lot is bigger than 30% of them (0.19 ac against a typical 0.28 ac) and it is newer than 45% of them (1950 against a typical 1953). Measured against all of Norfolk County, it is worth more than 28% 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 491 Union St, Braintree, MA?

The 2025 property tax bill for 491 Union St, Braintree, MA was $5,604. The county assessed it at $561,500.

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