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Single Family ResidenceResidential
$747,854$553 / 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 91How 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 $489,000 on Jun 11, 2014

17 CASTLEROCK ST

DORCHESTER, MA 02125
2
Beds
1.5
Baths
1,352 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.
3,200 ft²
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.
2
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.

Valuation

$748K
$683K low$812K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$489,000 · Jun 11, 2014

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,915 (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.$769,900 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$281,200
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$488,700
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$831,915

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.Colonial
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.0.07
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(8)

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
Edward Everett Elementary SchoolD+
Elementary · Grades PK–5 · 0.5 mi
M
John W. Mccormack Middle School
Middle · Grades 6–8 · 0.7 mi
H
Boston Community Leadership AcademyF
High · Grades 9–12 · 0.7 mi

District: Boston School District

Neighborhood · ZIP 02125These 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.128
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.102
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.80

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.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.24%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.24%
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.34,548
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.12,979 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$69,287
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$99,595
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.47 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

17 Castlerock 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 more than 76% of homes in Dorchester 02125
  • Costs more per square foot than 79% of homes in Dorchester
  • Smaller than 74% of homes in Dorchester
  • Newer than 68% of homes in Dorchester 02125

What homes are worth in Dorchester 02125

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

This home
$326K$1.2M

This home is worth more than 76% of homes in Dorchester 02125.

How it measures up in Dorchester 02125

The dot is this home. The mark in the middle is the typical home in Dorchester 02125.

Estimated value$747,854
CheaperTypical $601,642Pricier

Pricier than 76% of homes nearby

Price per ft²$553
CheaperTypical $492Pricier

Pricier than 70% of homes nearby

Living area1,352 ft²
SmallerTypical 2,091 ft²Bigger

Bigger than 34% of homes nearby

Lot size3,200 ft²
SmallerTypical 2,919 ft²Bigger

Bigger than 57% of homes nearby

Year built1910
OlderTypical 1905Newer

Newer than 68% of homes nearby

How 17 Castlerock St ranks against every home in each area.
MeasureThis homeDorchesterDorchester 02125Suffolk County
Estimated valuepricier than$747,85474% of homes76% of homes55% of homes
Price per ft²pricier than$55379% of homes70% of homes40% of homes
Living areabigger than1,352 ft²26% of homes34% of homes46% of homes
Lot sizebigger than3,200 ft²39% of homes57% of homes56% of homes
Year builtnewer than191058% of homes68% of homes45% of homes

About 17 Castlerock St

How much is 17 Castlerock St, Dorchester, MA worth?

The TopHap Estimate for 17 Castlerock St, Dorchester, MA is $747,854 as of Sep 24, 2026. The likely range is $683,463 to $812,245. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 17 Castlerock St, Dorchester, MA last sell?

17 Castlerock St, Dorchester, MA last sold on Jun 11, 2014 for $489,000, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 17 Castlerock St, Dorchester, MA?

17 Castlerock St, Dorchester, MA has 2 bedrooms, 1.5 bathrooms, 1,352 square feet of living space and a 0.07-acre lot.

When was 17 Castlerock St, Dorchester, MA built?

17 Castlerock St, Dorchester, MA was built in 1910, making it 116 years old. It is a colonial home. The building has 2 stories.

What schools serve 17 Castlerock St, Dorchester, MA?

17 Castlerock St, Dorchester, MA is assigned to Edward Everett Elementary School (elementary), rated D+; John W. Mccormack Middle School (middle); Boston Community Leadership Academy (high), rated F. All sit in Boston School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 17 Castlerock St, Dorchester, MA compare to other homes in Dorchester 02125?

Among the 5,736 homes in Dorchester 02125, it is worth more than 76% of them ($747,854 against a typical $601,642), its price per square foot is higher than 70% of them ($553 against a typical $492), it is bigger than 34% of them (1,352 ft² against a typical 2,091 ft²), its lot is bigger than 57% of them (3,200 ft² against a typical 2,919 ft²) and it is newer than 68% of them (1910 against a typical 1905). Measured against all of Suffolk County, it is worth more than 55% 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 17 Castlerock St, Dorchester, MA?

The 2025 property tax bill for 17 Castlerock St, Dorchester, MA was $8,915. The county assessed it at $769,900.

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