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Single Family ResidenceResidential
$978,938$447 / 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 97How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026
Last sold for $237,000 on Jan 3, 1989

21 BACK RIVER RD

NORTH WEYMOUTH, MA 02191
3
Beds
2.5
Baths
2,192 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.
0.17 ac
Lot SizeThe size of the land the home sits on, from county records.
1987
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

$979K
$950K low$1M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$237,000 · Jan 3, 1989
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$641,269
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$513,015
Loan-to-ValueHow much is still owed on the home compared to what it is worth. 80% means loans equal 80% of our estimate, so it shifts when the estimate does.34%
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.$318,000
CITIZENS BANK OF MA · recorded Feb 26, 2004
2nd 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.$19,669
SHAWMUT

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,107 (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.$802,700 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$238,800
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$563,900
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$953,040

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.34 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.62%
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.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Colonial
CountyNORFOLK
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.2000
Lot (acres)The size of the land the home sits on, from county records.0.17
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
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.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck

Transaction History(8)

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
WessagussetC-
Elementary · Grades KG–5 · 0.7 mi
H
Weymouth High SchoolC+
High · Grades 9–12 · 4.9 mi

District: Weymouth School District

Neighborhood · ZIP 02191These 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.87
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.97
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.69

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.30%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.8%
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.7,751
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,629 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$109,561
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$119,937
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%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
Company ownedWhether the owner is a company or trust rather than a person.Yes

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

21 Back River Rd 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 97% of homes in North Weymouth 02191
  • Bigger than 93% of homes in North Weymouth 02191
  • Has a smaller lot than 81% of homes in Norfolk County
  • Newer than 92% of homes in North Weymouth 02191

What homes are worth in North Weymouth 02191

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

This home
$301K$1.1M

This home is worth more than 97% of homes in North Weymouth 02191.

How it measures up in North Weymouth 02191

The dot is this home. The mark in the middle is the typical home in North Weymouth 02191.

Estimated value$978,938
CheaperTypical $585,402Pricier

Pricier than 97% of homes nearby

Price per ft²$447
CheaperTypical $441Pricier

Pricier than 53% of homes nearby

Living area2,192 ft²
SmallerTypical 1,320 ft²Bigger

Bigger than 93% of homes nearby

Lot size0.17 ac
SmallerTypical 0.18 acBigger

Bigger than 39% of homes nearby

Year built1987
OlderTypical 1948Newer

Newer than 92% of homes nearby

How 21 Back River Rd ranks against every home in each area.
MeasureThis homeNorth Weymouth 02191Norfolk County
Estimated valuepricier than$978,93897% of homes71% of homes
Price per ft²pricier than$44753% of homes50% of homes
Living areabigger than2,192 ft²93% of homes70% of homes
Lot sizebigger than0.17 ac39% of homes19% of homes
Year builtnewer than198792% of homes79% of homes

About 21 Back River Rd

How much is 21 Back River Rd, North Weymouth, MA worth?

The TopHap Estimate for 21 Back River Rd, North Weymouth, MA is $978,938 as of Jul 14, 2026. The likely range is $950,317 to $1,007,559. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Back River Rd, North Weymouth, MA last sell?

21 Back River Rd, North Weymouth, MA last sold on Jan 3, 1989 for $237,000, according to the county's recorded deed.

How big is 21 Back River Rd, North Weymouth, MA?

21 Back River Rd, North Weymouth, MA has 3 bedrooms, 2.5 bathrooms, 2,192 square feet of living space and a 0.17-acre lot.

When was 21 Back River Rd, North Weymouth, MA built?

21 Back River Rd, North Weymouth, MA was built in 1987, making it 39 years old. It is a colonial home. The building has 2 stories.

What schools serve 21 Back River Rd, North Weymouth, MA?

21 Back River Rd, North Weymouth, MA is assigned to Wessagusset (elementary), rated C-; Weymouth High School (high), rated C+. All sit in Weymouth School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Back River Rd, North Weymouth, MA compare to other homes in North Weymouth 02191?

Among the 3,373 homes in North Weymouth 02191, it is worth more than 97% of them ($978,938 against a typical $585,402), its price per square foot is higher than 53% of them ($447 against a typical $441), it is bigger than 93% of them (2,192 ft² against a typical 1,320 ft²), its lot is bigger than 39% of them (0.17 ac against a typical 0.18 ac) and it is newer than 92% of them (1987 against a typical 1948). Measured against all of Norfolk County, it is worth more than 71% 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 21 Back River Rd, North Weymouth, MA?

The 2025 property tax bill for 21 Back River Rd, North Weymouth, MA was $8,107. The county assessed it at $802,700.

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Assigned schools

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