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Single Family ResidenceResidential
$465,417$429 / 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 88How 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
Last sold for $40,000 on Jan 20, 1994

21 ROCK ST

MANSFIELD, MA 02048
3
Beds
1
Baths
1,085 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.
0.14 ac
Lot SizeThe size of the land the home sits on, from county records.
1910
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
5
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$465K
$409K low$522K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$40,000 · Jan 20, 1994

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,746 (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.$360,400 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$210,100
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$150,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$542,355

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.9 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.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Bungalow
CountyBRISTOL
Lot (acres)The size of the land the home sits on, from county records.0.14
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
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(4)

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
Harold L Qualters Middle SchoolB+
Middle · Grades 6–8 · 0.3 mi
E
Everett W Robinson
Elementary · Grades KG–2 · 0.4 mi
H
Mansfield High SchoolA-
High · Grades 9–12 · 0.5 mi

District: Mansfield School District

Neighborhood · ZIP 02048These 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.39
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.99
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.62

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.32%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.3%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.7%
PopulationHow many people live in this area.24,573
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,204 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$134,350
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$152,045
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%

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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

21 Rock 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 88% of homes in Mansfield 02048
  • Costs more per square foot than 84% of homes in Bristol County
  • Smaller than 85% of homes in Mansfield 02048
  • Has a smaller lot than 98% of homes in Mansfield 02048
  • Older than 88% of homes in Mansfield 02048

What homes are worth in Mansfield 02048

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

This home
$237K$1.3M

This home is worth more than 12% of homes in Mansfield 02048.

How it measures up in Mansfield 02048

The dot is this home. The mark in the middle is the typical home in Mansfield 02048.

Estimated value$465,417
CheaperTypical $701,754Pricier

Pricier than 12% of homes nearby

Price per ft²$429
CheaperTypical $392Pricier

Pricier than 74% of homes nearby

Living area1,085 ft²
SmallerTypical 1,845 ft²Bigger

Bigger than 15% of homes nearby

Lot size0.14 ac
SmallerTypical 0.69 acBigger

Bigger than 2% of homes nearby

Year built1910
OlderTypical 1983Newer

Newer than 12% of homes nearby

How 21 Rock St ranks against every home in each area.
MeasureThis homeMansfield 02048Bristol County
Estimated valuepricier than$465,41712% of homes35% of homes
Price per ft²pricier than$42974% of homes84% of homes
Living areabigger than1,085 ft²15% of homes15% of homes
Lot sizebigger than0.14 ac2% of homes18% of homes
Year builtnewer than191012% of homes17% of homes

About 21 Rock St

How much is 21 Rock St, Mansfield, MA worth?

The TopHap Estimate for 21 Rock St, Mansfield, MA is $465,417 as of Sep 24, 2026. The likely range is $408,970 to $521,864. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Rock St, Mansfield, MA last sell?

21 Rock St, Mansfield, MA last sold on Jan 20, 1994 for $40,000, according to the county's recorded deed.

How big is 21 Rock St, Mansfield, MA?

21 Rock St, Mansfield, MA has 3 bedrooms, 1 bathrooms, 1,085 square feet of living space and a 0.14-acre lot.

When was 21 Rock St, Mansfield, MA built?

21 Rock St, Mansfield, MA was built in 1910, making it 116 years old. It is a bungalow home. The building has 1 story.

What schools serve 21 Rock St, Mansfield, MA?

21 Rock St, Mansfield, MA is assigned to Harold L Qualters Middle School (middle), rated B+; Everett W Robinson (elementary); Mansfield High School (high), rated A-. All sit in Mansfield School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Rock St, Mansfield, MA compare to other homes in Mansfield 02048?

Among the 6,882 homes in Mansfield 02048, it is worth more than 12% of them ($465,417 against a typical $701,754), its price per square foot is higher than 74% of them ($429 against a typical $392), it is bigger than 15% of them (1,085 ft² against a typical 1,845 ft²), its lot is bigger than 2% of them (0.14 ac against a typical 0.69 ac) and it is newer than 12% of them (1910 against a typical 1983). Measured against all of Bristol County, it is worth more than 35% 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 Rock St, Mansfield, MA?

The 2025 property tax bill for 21 Rock St, Mansfield, MA was $4,746. The county assessed it at $360,400.

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