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Single Family ResidenceResidential
$389,294$238 / 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 90How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026
Last sold for $290,000 on May 31, 2023

11 HOSMER ST

MATTAPAN, MA 02126
4
Beds
2.5
Baths
1,638 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.
3,024 ft²
Lot SizeThe size of the land the home sits on, from county records.
2021
Year BuiltThe year the home was originally built, according to county records.
3
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.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$389K
$349K low$429K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$290,000 · May 31, 2023

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,459 (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.$298,700 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$139,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$159,700
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$590,900

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.36
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
1
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
60
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
90
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
32
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.

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
CountySUFFOLK
Lot (acres)The size of the land the home sits on, from county records.0.07
HeatingThe type of heating system in the home.Heat Pump
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

Transaction History(1)

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
Young Achievers K-8 SchoolD+
Elementary · Grades PK–8 · 0.2 mi
H
Boston International High SchoolF
High · Grades 9–12 · 0.6 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

11 Hosmer 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 93% of homes in Suffolk County
  • Among the lowest price per square foot in Suffolk County
  • Has a smaller lot than 91% of homes in Mattapan 02126
  • Among the newest homes in Mattapan

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
$282K$780K

This home is worth more than 10% 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$389,294
CheaperTypical $531,765Pricier

Pricier than 10% of homes nearby

Price per ft²$238
CheaperTypical $386Pricier

Pricier than 3% of homes nearby

Living area1,638 ft²
SmallerTypical 1,918 ft²Bigger

Bigger than 39% of homes nearby

Lot size3,024 ft²
SmallerTypical 0.11 acBigger

Bigger than 9% of homes nearby

Year built2021
OlderTypical 1930Newer

Newer than almost all homes nearby

How 11 Hosmer St ranks against every home in each area.
MeasureThis homeMattapanMattapan 02126Suffolk County
Estimated valuepricier than$389,29410% of homes10% of homes7% of homes
Price per ft²pricier than$2382% of homes3% of homesalmost no homes
Living areabigger than1,638 ft²42% of homes39% of homes56% of homes
Lot sizebigger than3,024 ft²13% of homes9% of homes54% of homes
Year builtnewer than2021almost all homesalmost all homesalmost all homes

About 11 Hosmer St

How much is 11 Hosmer St, Mattapan, MA worth?

The TopHap Estimate for 11 Hosmer St, Mattapan, MA is $389,294 as of Aug 30, 2026. The likely range is $349,404 to $429,184. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 11 Hosmer St, Mattapan, MA last sell?

11 Hosmer St, Mattapan, MA last sold on May 31, 2023 for $290,000, according to the county's recorded deed.

How big is 11 Hosmer St, Mattapan, MA?

11 Hosmer St, Mattapan, MA has 4 bedrooms, 2.5 bathrooms, 1,638 square feet of living space and a 0.07-acre lot.

When was 11 Hosmer St, Mattapan, MA built?

11 Hosmer St, Mattapan, MA was built in 2021, making it 5 years old. The building has 3 stories.

What schools serve 11 Hosmer St, Mattapan, MA?

11 Hosmer St, Mattapan, MA is assigned to Young Achievers K-8 School (elementary), rated D+; 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 11 Hosmer St, Mattapan, MA compare to other homes in Mattapan 02126?

Among the 3,890 homes in Mattapan 02126, it is worth more than 10% of them ($389,294 against a typical $531,765), its price per square foot is higher than 3% of them ($238 against a typical $386), it is bigger than 39% of them (1,638 ft² against a typical 1,918 ft²), its lot is bigger than 9% of them (3,024 ft² against a typical 0.11 ac) and it is newer than almost all of them (2021 against a typical 1930). Measured against all of Suffolk County, it is worth more than 7% 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 11 Hosmer St, Mattapan, MA?

The 2025 property tax bill for 11 Hosmer St, Mattapan, MA was $3,459. The county assessed it at $298,700.

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