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Duplex (2 Units, Any Combination)Residential
Last sold for $405,000 on Jul 26, 2012

20 KNOLL ST # 22

ROSLINDALE, MA 02131
6
Beds
2
Baths
2,046 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.
4,087 ft²
Lot SizeThe size of the land the home sits on, from county records.
1920
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
12
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
5
ParkingThe number of parking spaces on the property, including the garage.

Valuation

Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$405,000 · Jul 26, 2012
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.$340,000
UNITED WHOLESALE MORTGAGE · R · recorded Oct 13, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$9,520 (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.$822,100 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$308,700
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$513,400
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$822,100

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Duplex (2 Units, Any Combination)
StyleThe architectural style of the home, such as ranch or colonial.Two Family
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.2002
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.Forced Air

Transaction History(6)

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
Charles Sumner Elementary SchoolD+
Elementary · Grades PK–5 · 0.5 mi
M
Washington Irving Middle School
Middle · Grades 6–8 · 0.7 mi
H
Margarita Muniz AcademyC-
High · Grades 9–12 · 1.5 mi

District: Boston School District

Neighborhood · ZIP 02131These 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.70
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.105
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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.26%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.11%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.3%
PopulationHow many people live in this area.29,422
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.10,044 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$104,779
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$134,833
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%

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

20 Knoll St # 22 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.

  • Bigger than 68% of homes in Roslindale 02131
  • Has a bigger lot than 65% of homes in Suffolk County

How it measures up in Roslindale 02131

The dot is this home. The mark in the middle is the typical home in Roslindale 02131.

Living area2,046 ft²
SmallerTypical 1,650 ft²Bigger

Bigger than 68% of homes nearby

Lot size4,087 ft²
SmallerTypical 0.11 acBigger

Bigger than 38% of homes nearby

Year built1920
OlderTypical 1920Newer

Newer than 52% of homes nearby

How 20 Knoll St # 22 ranks against every home in each area.
MeasureThis homeRoslindale 02131Suffolk County
Living areabigger than2,046 ft²68% of homes67% of homes
Lot sizebigger than4,087 ft²38% of homes65% of homes
Year builtnewer than192052% of homes56% of homes

About 20 Knoll St # 22

When did 20 Knoll St # 22, Roslindale, MA last sell?

20 Knoll St # 22, Roslindale, MA last sold on Jul 26, 2012 for $405,000, according to the county's recorded deed.

How big is 20 Knoll St # 22, Roslindale, MA?

20 Knoll St # 22, Roslindale, MA has 6 bedrooms, 2 bathrooms, 2,046 square feet of living space and a 0.09-acre lot.

When was 20 Knoll St # 22, Roslindale, MA built?

20 Knoll St # 22, Roslindale, MA was built in 1920, making it 106 years old. It is a two family home. The building has 2 stories.

What schools serve 20 Knoll St # 22, Roslindale, MA?

20 Knoll St # 22, Roslindale, MA is assigned to Charles Sumner Elementary School (elementary), rated D+; Washington Irving Middle School (middle); Margarita Muniz Academy (high), rated C-. All sit in Boston School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 20 Knoll St # 22, Roslindale, MA compare to other homes in Roslindale 02131?

Among the 7,665 homes in Roslindale 02131, it is bigger than 68% of them (2,046 ft² against a typical 1,650 ft²), its lot is bigger than 38% of them (4,087 ft² against a typical 0.11 ac) and it is newer than 52% of them (1920 against a typical 1920). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 20 Knoll St # 22, Roslindale, MA?

The 2025 property tax bill for 20 Knoll St # 22, Roslindale, MA was $9,520. The county assessed it at $822,100.

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Assigned schools

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