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Triplex (3 Units, Any Combination)Residential
Last sold for $89,000 on Aug 21, 1996

510 UNION ST

ROCKLAND, MA 02370
3
Baths
2,334 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.
1.02 ac
Lot SizeThe size of the land the home sits on, from county records.
1880
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

Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$89,000 · Aug 21, 1996
1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$86,912
OLD COLONY MORTGAGE CORP · P · recorded Aug 21, 1996

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,860 (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.$575,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$233,400
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$341,600
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$542,800

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.13 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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.minimal

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Triplex (3 Units, Any Combination)
StyleThe architectural style of the home, such as ranch or colonial.Conventional
CountyPlymouth
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.1972
Lot (acres)The size of the land the home sits on, from county records.1.02
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.Forced Air
CoolingThe type of cooling or air conditioning in the home.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(1)

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.

H
Rockland High SchoolC-
High · Grades 9–12 · 0.5 mi
M
John W. Rodgers Middle SchoolC-
Middle · Grades 5–8 · 0.5 mi
E
Phelps Elementary SchoolB
Elementary · Grades 1–4 · 0.9 mi

District: Rockland School District

Neighborhood · ZIP 02370These 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.82
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.95
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.26%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.5%
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.18,041
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,810 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$95,099
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$121,368
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.47 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.52%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Absentee owner
Company ownedWhether the owner is a company or trust rather than a person.No

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

510 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.

  • Bigger than 87% of homes in Rockland 02370
  • Has a bigger lot than 81% of homes in Rockland 02370
  • Older than 96% of homes in Plymouth County

How it measures up in Rockland 02370

The dot is this home. The mark in the middle is the typical home in Rockland 02370.

Living area2,334 ft²
SmallerTypical 1,579 ft²Bigger

Bigger than 87% of homes nearby

Lot size1.02 ac
SmallerTypical 0.35 acBigger

Bigger than 81% of homes nearby

Year built1880
OlderTypical 1957Newer

Newer than 10% of homes nearby

How 510 Union St ranks against every home in each area.
MeasureThis homeRockland 02370Plymouth County
Living areabigger than2,334 ft²87% of homes75% of homes
Lot sizebigger than1.02 ac81% of homes78% of homes
Year builtnewer than188010% of homes4% of homes

About 510 Union St

When did 510 Union St, Rockland, MA last sell?

510 Union St, Rockland, MA last sold on Aug 21, 1996 for $89,000, according to the county's recorded deed.

How big is 510 Union St, Rockland, MA?

510 Union St, Rockland, MA has 3 bathrooms, 2,334 square feet of living space and a 1.02-acre lot.

When was 510 Union St, Rockland, MA built?

510 Union St, Rockland, MA was built in 1880, making it 146 years old. It is a conventional home. The building has 2 stories.

What schools serve 510 Union St, Rockland, MA?

510 Union St, Rockland, MA is assigned to Rockland High School (high), rated C-; John W. Rodgers Middle School (middle), rated C-; Phelps Elementary School (elementary), rated B. All sit in Rockland School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 510 Union St, Rockland, MA compare to other homes in Rockland 02370?

Among the 5,262 homes in Rockland 02370, it is bigger than 87% of them (2,334 ft² against a typical 1,579 ft²), its lot is bigger than 81% of them (1.02 ac against a typical 0.35 ac) and it is newer than 10% of them (1880 against a typical 1957). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 510 Union St, Rockland, MA?

The 2025 property tax bill for 510 Union St, Rockland, MA was $7,860. The county assessed it at $575,000.

Closest homes

More homes in Rockland 02370

Assigned schools

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