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CondominiumResidential
$502,608$367 / 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 Jun 23, 2026
Last sold for $348,100 on Feb 1, 2017

421 RIVER ST

NORWELL, MA 02061
Building report
2
Beds
2
Baths
1,368 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.
1700
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

$503K
$457K low$548K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$348,100 · Feb 1, 2017
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.$164,951
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$131,961
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.67%
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.$337,657
WILLIAM RAVEIS MTG CO · recorded Feb 1, 2017

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,875 (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.$449,500 (2025)
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$449,500
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$558,030

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.38
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
22
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
50
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
88
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
29
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
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.Condominium
StyleThe architectural style of the home, such as ranch or colonial.Condo/Apartment
CountyPLYMOUTH
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
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(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
Norwell Middle SchoolA-
Middle · Grades 6–8 · 1.9 mi
H
Norwell High SchoolA+
High · Grades 9–12 · 2.7 mi
E
William G VinalA
Elementary · Grades PK–5 · 2.9 mi

District: Norwell School District

Neighborhood · ZIP 02061These 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.27
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 100.73

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.43%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.3%
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.11,639
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.546 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$180,690
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$191,075
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.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

421 River 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 98% of homes in Norwell 02061
  • Costs less per square foot than 87% of homes in Norwell 02061
  • Smaller than 89% of homes in Norwell 02061
  • Among the oldest homes in Norwell 02061

What homes are worth in Norwell 02061

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

This home
$523K$2.4M

This home is worth more than 2% of homes in Norwell 02061.

How it measures up in Norwell 02061

The dot is this home. The mark in the middle is the typical home in Norwell 02061.

Estimated value$502,608
CheaperTypical $1,038,729Pricier

Pricier than 2% of homes nearby

Price per ft²$367
CheaperTypical $466Pricier

Pricier than 13% of homes nearby

Living area1,368 ft²
SmallerTypical 2,312 ft²Bigger

Bigger than 11% of homes nearby

Year built1700
OlderTypical 1971Newer

Older than almost all homes nearby

How 421 River St ranks against every home in each area.
MeasureThis homeNorwell 02061Plymouth County
Estimated valuepricier than$502,6082% of homes25% of homes
Price per ft²pricier than$36713% of homes43% of homes
Living areabigger than1,368 ft²11% of homes31% of homes
Year builtnewer than1700almost no homesalmost no homes

About 421 River St

How much is 421 River St, Norwell, MA worth?

The TopHap Estimate for 421 River St, Norwell, MA is $502,608 as of Jun 23, 2026. The likely range is $457,373 to $547,842. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 421 River St, Norwell, MA last sell?

421 River St, Norwell, MA last sold on Feb 1, 2017 for $348,100, according to the county's recorded deed.

How big is 421 River St, Norwell, MA?

421 River St, Norwell, MA has 2 bedrooms, 2 bathrooms and 1,368 square feet of living space.

When was 421 River St, Norwell, MA built?

421 River St, Norwell, MA was built in 1700, making it 326 years old. It is a condo/apartment home. The building has 2 stories.

What schools serve 421 River St, Norwell, MA?

421 River St, Norwell, MA is assigned to Norwell Middle School (middle), rated A-; Norwell High School (high), rated A+; William G Vinal (elementary), rated A. All sit in Norwell School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 421 River St, Norwell, MA compare to other homes in Norwell 02061?

Among the 3,714 homes in Norwell 02061, it is worth more than 2% of them ($502,608 against a typical $1,038,729), its price per square foot is higher than 13% of them ($367 against a typical $466), it is bigger than 11% of them (1,368 ft² against a typical 2,312 ft²) and it is newer than almost none of them (1700 against a typical 1971). Measured against all of Plymouth County, it is worth more than 25% 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 421 River St, Norwell, MA?

The 2025 property tax bill for 421 River St, Norwell, MA was $5,875. The county assessed it at $449,500.

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