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Single Family ResidenceResidential
$747,400$341 / 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 94How 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 $399,000 on Jul 26, 2013

306 UNION ST

BRAINTREE, MA 02184
3
Beds
1.5
Baths
2,189 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.
0.44 ac
Lot SizeThe size of the land the home sits on, from county records.
1842
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
7
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$747K
$706K low$789K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$399,000 · Jul 26, 2013

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,125 (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.$713,900 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$372,800
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$341,100
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$757,435

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.Historical
CountyNORFOLK
Lot (acres)The size of the land the home sits on, from county records.0.44
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.Steam
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.Yes

Transaction History(9)

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 · 0.6 mi
E
Hollis Elementary SchoolA-
Elementary · Grades KG–5 · 0.6 mi
H
Braintree High SchoolA-
High · Grades 9–12 · 1.5 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

306 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.

  • Costs less per square foot than 85% of homes in Norfolk County
  • Bigger than 71% of homes in Braintree 02184
  • Has a bigger lot than 72% of homes in Braintree 02184
  • Among the oldest homes in Braintree 02184

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
$353K$1.4M

This home is worth more than 61% 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$747,400
CheaperTypical $696,322Pricier

Pricier than 61% of homes nearby

Price per ft²$341
CheaperTypical $406Pricier

Pricier than 18% of homes nearby

Living area2,189 ft²
SmallerTypical 1,741 ft²Bigger

Bigger than 71% of homes nearby

Lot size0.44 ac
SmallerTypical 0.29 acBigger

Bigger than 72% of homes nearby

Year built1842
OlderTypical 1953Newer

Older than almost all homes nearby

How 306 Union St ranks against every home in each area.
MeasureThis homeBraintree 02184Norfolk County
Estimated valuepricier than$747,40061% of homes52% of homes
Price per ft²pricier than$34118% of homes15% of homes
Living areabigger than2,189 ft²71% of homes70% of homes
Lot sizebigger than0.44 ac72% of homes56% of homes
Year builtnewer than1842almost no homesalmost no homes

About 306 Union St

How much is 306 Union St, Braintree, MA worth?

The TopHap Estimate for 306 Union St, Braintree, MA is $747,400 as of Sep 24, 2026. The likely range is $706,150 to $788,650. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 306 Union St, Braintree, MA last sell?

306 Union St, Braintree, MA last sold on Jul 26, 2013 for $399,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 306 Union St, Braintree, MA?

306 Union St, Braintree, MA has 3 bedrooms, 1.5 bathrooms, 2,189 square feet of living space and a 0.44-acre lot.

When was 306 Union St, Braintree, MA built?

306 Union St, Braintree, MA was built in 1842, making it 184 years old. It is a historical home. The building has 2 stories.

What schools serve 306 Union St, Braintree, MA?

306 Union St, Braintree, MA is assigned to East Middle School (middle), rated B-; Hollis Elementary School (elementary), rated A-; 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 306 Union St, Braintree, MA compare to other homes in Braintree 02184?

Among the 11,600 homes in Braintree 02184, it is worth more than 61% of them ($747,400 against a typical $696,322), its price per square foot is higher than 18% of them ($341 against a typical $406), it is bigger than 71% of them (2,189 ft² against a typical 1,741 ft²), its lot is bigger than 72% of them (0.44 ac against a typical 0.29 ac) and it is newer than almost none of them (1842 against a typical 1953). Measured against all of Norfolk County, it is worth more than 52% 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 306 Union St, Braintree, MA?

The 2025 property tax bill for 306 Union St, Braintree, MA was $7,125. The county assessed it at $713,900.

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