Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$402,008$322 / 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 92How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026

421 SOUTH ST

PLAINVILLE, MA 02762
3
Beds
1
Baths
1,248 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.
0.65 ac
Lot SizeThe size of the land the home sits on, from county records.
1915
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
6
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$402K
$369K low$435K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,327 (2026)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$383,300 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$226,300
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$156,200
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$365,100
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$453,435

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.Conventional
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.1974
Lot (acres)The size of the land the home sits on, from county records.0.65
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Hot Water
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.

E
Anna Ware JacksonA-
Elementary · Grades PK–2 · 2.4 mi
H
King Philip Regional High SchoolB
High · Grades 9–12 · 3.4 mi
M
King Philip Regional Middle SchoolB
Middle · Grades 7–8 · 5.2 mi

District: King Philip School District

Neighborhood · ZIP 02762These 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.98
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.68

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.27%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.4%
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.9,658
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.870 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$110,964
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$134,462
Average tempThe average temperature here across a full year.49°F
Annual precipHow much rain and melted snow falls here in a typical year.49 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.52%

Owner Tools

Do you own this home?
Claim this home

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 South 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 94% of homes in Norfolk County
  • Costs less per square foot than 89% of homes in Norfolk County
  • Smaller than 75% of homes in Plainville 02762
  • Has a bigger lot than 68% of homes in Norfolk County
  • Older than 91% of homes in Plainville 02762

What homes are worth in Plainville 02762

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

This home
$331K$1.2M

This home is worth more than 17% of homes in Plainville 02762.

How it measures up in Plainville 02762

The dot is this home. The mark in the middle is the typical home in Plainville 02762.

Estimated value$402,008
CheaperTypical $548,485Pricier

Pricier than 17% of homes nearby

Price per ft²$322
CheaperTypical $337Pricier

Pricier than 38% of homes nearby

Living area1,248 ft²
SmallerTypical 1,770 ft²Bigger

Bigger than 25% of homes nearby

Lot size0.65 ac
SmallerTypical 0.61 acBigger

Bigger than 52% of homes nearby

Year built1915
OlderTypical 1979Newer

Newer than 9% of homes nearby

How 421 South St ranks against every home in each area.
MeasureThis homePlainville 02762Norfolk County
Estimated valuepricier than$402,00817% of homes6% of homes
Price per ft²pricier than$32238% of homes11% of homes
Living areabigger than1,248 ft²25% of homes25% of homes
Lot sizebigger than0.65 ac52% of homes68% of homes
Year builtnewer than19159% of homes15% of homes

About 421 South St

How much is 421 South St, Plainville, MA worth?

The TopHap Estimate for 421 South St, Plainville, MA is $402,008 as of Oct 21, 2026. The likely range is $369,089 to $434,927. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 421 South St, Plainville, MA last sell?

421 South St, Plainville, MA last sold on Jun 18, 2008, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 421 South St, Plainville, MA?

421 South St, Plainville, MA has 3 bedrooms, 1 bathrooms, 1,248 square feet of living space and a 0.65-acre lot.

When was 421 South St, Plainville, MA built?

421 South St, Plainville, MA was built in 1915, making it 111 years old. It is a conventional home. The building has 2 stories.

What schools serve 421 South St, Plainville, MA?

421 South St, Plainville, MA is assigned to Anna Ware Jackson (elementary), rated A-; King Philip Regional High School (high), rated B; King Philip Regional Middle School (middle), rated B. All sit in King Philip School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 421 South St, Plainville, MA compare to other homes in Plainville 02762?

Among the 2,675 homes in Plainville 02762, it is worth more than 17% of them ($402,008 against a typical $548,485), its price per square foot is higher than 38% of them ($322 against a typical $337), it is bigger than 25% of them (1,248 ft² against a typical 1,770 ft²), its lot is bigger than 52% of them (0.65 ac against a typical 0.61 ac) and it is newer than 9% of them (1915 against a typical 1979). Measured against all of Norfolk County, it is worth more than 6% 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 South St, Plainville, MA?

The 2026 property tax bill for 421 South St, Plainville, MA was $4,327. The county assessed it at $383,300.

More homes on South St

Closest homes

More homes in Plainville 02762

Assigned schools

Explore the area

See this home in context

Open 421 South St on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map