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Single Family ResidenceResidential
$504,485$381 / 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

55 WILLIAM ST

ROCKLAND, MA 02370
2
Baths
1,325 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.
0.21 ac
Lot SizeThe size of the land the home sits on, from county records.
1895
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

$504K
$472K low$537K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,199 (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.$453,500 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$224,900
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$228,600
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$461,510

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.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.1986
Lot (acres)The size of the land the home sits on, from county records.0.21
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 With Air Conditioning
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(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
John W. Rodgers Middle SchoolC-
Middle · Grades 5–8 · 0.4 mi
H
Rockland High SchoolC-
High · Grades 9–12 · 0.4 mi
E
Phelps Elementary SchoolB
Elementary · Grades 1–4 · 0.5 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%

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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

55 William 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 74% of homes in Plymouth County
  • Smaller than 73% of homes in Plymouth County
  • Has a smaller lot than 83% of homes in Rockland 02370
  • Older than 94% of homes in Plymouth County

What homes are worth in Rockland 02370

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

This home
$250K$898K

This home is worth more than 38% of homes in Rockland 02370.

How it measures up in Rockland 02370

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

Estimated value$504,485
CheaperTypical $540,021Pricier

Pricier than 38% of homes nearby

Price per ft²$381
CheaperTypical $358Pricier

Pricier than 60% of homes nearby

Living area1,325 ft²
SmallerTypical 1,574 ft²Bigger

Bigger than 31% of homes nearby

Lot size0.21 ac
SmallerTypical 0.35 acBigger

Bigger than 17% of homes nearby

Year built1895
OlderTypical 1957Newer

Newer than 12% of homes nearby

How 55 William St ranks against every home in each area.
MeasureThis homeRockland 02370Plymouth County
Estimated valuepricier than$504,48538% of homes26% of homes
Price per ft²pricier than$38160% of homes47% of homes
Living areabigger than1,325 ft²31% of homes27% of homes
Lot sizebigger than0.21 ac17% of homes23% of homes
Year builtnewer than189512% of homes6% of homes

About 55 William St

How much is 55 William St, Rockland, MA worth?

The TopHap Estimate for 55 William St, Rockland, MA is $504,485 as of Sep 24, 2026. The likely range is $471,781 to $537,189. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 55 William St, Rockland, MA last sell?

55 William St, Rockland, MA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 55 William St, Rockland, MA?

55 William St, Rockland, MA has 2 bathrooms, 1,325 square feet of living space and a 0.21-acre lot.

When was 55 William St, Rockland, MA built?

55 William St, Rockland, MA was built in 1895, making it 131 years old. It is a conventional home. The building has 2 stories.

What schools serve 55 William St, Rockland, MA?

55 William St, Rockland, MA is assigned to John W. Rodgers Middle School (middle), rated C-; Rockland High School (high), 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 55 William St, Rockland, MA compare to other homes in Rockland 02370?

Among the 5,262 homes in Rockland 02370, it is worth more than 38% of them ($504,485 against a typical $540,021), its price per square foot is higher than 60% of them ($381 against a typical $358), it is bigger than 31% of them (1,325 ft² against a typical 1,574 ft²), its lot is bigger than 17% of them (0.21 ac against a typical 0.35 ac) and it is newer than 12% of them (1895 against a typical 1957). Measured against all of Plymouth County, it is worth more than 26% 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 55 William St, Rockland, MA?

The 2025 property tax bill for 55 William St, Rockland, MA was $6,199. The county assessed it at $453,500.

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