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Single Family ResidenceResidential
$526,000$373 / 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 96How 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 $282,000 on Nov 12, 2020

21 RICH ST

MATTAPAN, MA 02126
2
Beds
1
Baths
1,411 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.
4,070 ft²
Lot SizeThe size of the land the home sits on, from county records.
1925
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.
4
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$526K
$504K 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.$282,000 · Nov 12, 2020

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,195 (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.$448,600 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$131,900
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$316,700
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$409,450

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
CountySUFFOLK
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.2020
Lot (acres)The size of the land the home sits on, from county records.0.09
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Hot Water
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(10)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Foreclosure Filings(2)

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Mildred Avenue K-8 SchoolF
Elementary · Grades KG–8 · 0.1 mi
H
Boston International High SchoolF
High · Grades 9–12 · 0.5 mi

District: Boston School District

Neighborhood · ZIP 02126These 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.84
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.100
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.75

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.94%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.16%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.18%
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.22,143
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.12,185 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$74,782
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$107,132
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.58%

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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 Rich 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 78% of homes in Suffolk County
  • Costs less per square foot than 90% of homes in Suffolk County
  • Smaller than 73% of homes in Mattapan 02126
  • Has a smaller lot than 71% of homes in Mattapan 02126

What homes are worth in Mattapan 02126

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

This home
$294K$827K

This home is worth more than 43% of homes in Mattapan 02126.

How it measures up in Mattapan 02126

The dot is this home. The mark in the middle is the typical home in Mattapan 02126.

Estimated value$526,000
CheaperTypical $542,288Pricier

Pricier than 43% of homes nearby

Price per ft²$373
CheaperTypical $393Pricier

Pricier than 39% of homes nearby

Living area1,411 ft²
SmallerTypical 1,920 ft²Bigger

Bigger than 27% of homes nearby

Lot size4,070 ft²
SmallerTypical 0.11 acBigger

Bigger than 29% of homes nearby

Year built1925
OlderTypical 1930Newer

Newer than 49% of homes nearby

How 21 Rich St ranks against every home in each area.
MeasureThis homeMattapanMattapan 02126Suffolk County
Estimated valuepricier than$526,00039% of homes43% of homes22% of homes
Price per ft²pricier than$37333% of homes39% of homes10% of homes
Living areabigger than1,411 ft²31% of homes27% of homes48% of homes
Lot sizebigger than4,070 ft²32% of homes29% of homes65% of homes
Year builtnewer than192550% of homes49% of homes58% of homes

About 21 Rich St

How much is 21 Rich St, Mattapan, MA worth?

The TopHap Estimate for 21 Rich St, Mattapan, MA is $526,000 as of Sep 24, 2026. The likely range is $504,060 to $547,940. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Rich St, Mattapan, MA last sell?

21 Rich St, Mattapan, MA last sold on Nov 12, 2020 for $282,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 21 Rich St, Mattapan, MA?

21 Rich St, Mattapan, MA has 2 bedrooms, 1 bathrooms, 1,411 square feet of living space and a 0.09-acre lot.

When was 21 Rich St, Mattapan, MA built?

21 Rich St, Mattapan, MA was built in 1925, making it 101 years old. It is a bungalow home. The building has 1 story.

What schools serve 21 Rich St, Mattapan, MA?

21 Rich St, Mattapan, MA is assigned to Mildred Avenue K-8 School (elementary), rated F; Boston International High School (high), rated F. All sit in Boston School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Rich St, Mattapan, MA compare to other homes in Mattapan 02126?

Among the 3,890 homes in Mattapan 02126, it is worth more than 43% of them ($526,000 against a typical $542,288), its price per square foot is higher than 39% of them ($373 against a typical $393), it is bigger than 27% of them (1,411 ft² against a typical 1,920 ft²), its lot is bigger than 29% of them (4,070 ft² against a typical 0.11 ac) and it is newer than 49% of them (1925 against a typical 1930). Measured against all of Suffolk County, it is worth more than 22% 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 Rich St, Mattapan, MA?

The 2025 property tax bill for 21 Rich St, Mattapan, MA was $5,195. The county assessed it at $448,600.

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