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Single Family ResidenceResidential
$1,069,495$519 / 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 95How 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 $1,006,000 on Mar 22, 2024

4 BLACKTHORNE CIR

HOPKINTON, MA 01748
4
Beds
2.5
Baths
2,060 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.
1.07 ac
Lot SizeThe size of the land the home sits on, from county records.
1993
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
8
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

$1.1M
$1M low$1.1M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$1,006,000 · Mar 22, 2024

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$13,967 (2026)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$990,600 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$381,400
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$609,200
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$873,700
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$938,667

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
CountyMIDDLESEX
Lot (acres)The size of the land the home sits on, from county records.1.07
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
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
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Basement
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(14)

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
Marathon Elementary School
Elementary · Grades PK–1 · 0.9 mi
H
Hopkinton High SchoolA+
High · Grades 9–12 · 1.1 mi
M
Hopkinton Middle SchoolA+
Middle · Grades 6–8 · 1.2 mi

District: Hopkinton School District

Neighborhood · ZIP 01748These 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.36
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.97
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.66

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.37%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.3%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.19,208
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.687 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$189,861
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$255,819
Average tempThe average temperature here across a full year.48°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

4 Blackthorne Cir 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 74% of homes in Middlesex County
  • Costs more per square foot than 83% of homes in Hopkinton 01748
  • Has a bigger lot than 81% of homes in Middlesex County
  • Newer than 84% of homes in Middlesex County

What homes are worth in Hopkinton 01748

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

This home
$437K$2M

This home is worth more than 62% of homes in Hopkinton 01748.

How it measures up in Hopkinton 01748

The dot is this home. The mark in the middle is the typical home in Hopkinton 01748.

Estimated value$1,069,495
CheaperTypical $968,408Pricier

Pricier than 62% of homes nearby

Price per ft²$519
CheaperTypical $424Pricier

Pricier than 83% of homes nearby

Living area2,060 ft²
SmallerTypical 2,330 ft²Bigger

Bigger than 38% of homes nearby

Lot size1.07 ac
SmallerTypical 1.23 acBigger

Bigger than 45% of homes nearby

Year built1993
OlderTypical 1992Newer

Newer than 54% of homes nearby

How 4 Blackthorne Cir ranks against every home in each area.
MeasureThis homeHopkinton 01748Middlesex County
Estimated valuepricier than$1,069,49562% of homes74% of homes
Price per ft²pricier than$51983% of homes63% of homes
Living areabigger than2,060 ft²38% of homes59% of homes
Lot sizebigger than1.07 ac45% of homes81% of homes
Year builtnewer than199354% of homes84% of homes

About 4 Blackthorne Cir

How much is 4 Blackthorne Cir, Hopkinton, MA worth?

The TopHap Estimate for 4 Blackthorne Cir, Hopkinton, MA is $1,069,495 as of Sep 24, 2026. The likely range is $1,017,412 to $1,121,578. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4 Blackthorne Cir, Hopkinton, MA last sell?

4 Blackthorne Cir, Hopkinton, MA last sold on Mar 22, 2024 for $1,006,000, according to the county's recorded deed. TopHap holds 5 recorded sales for this parcel.

How big is 4 Blackthorne Cir, Hopkinton, MA?

4 Blackthorne Cir, Hopkinton, MA has 4 bedrooms, 2.5 bathrooms, 2,060 square feet of living space and a 1.07-acre lot.

When was 4 Blackthorne Cir, Hopkinton, MA built?

4 Blackthorne Cir, Hopkinton, MA was built in 1993, making it 33 years old. It is a colonial home. The building has 2 stories.

What schools serve 4 Blackthorne Cir, Hopkinton, MA?

4 Blackthorne Cir, Hopkinton, MA is assigned to Marathon Elementary School (elementary); Hopkinton High School (high), rated A+; Hopkinton Middle School (middle), rated A+. All sit in Hopkinton School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4 Blackthorne Cir, Hopkinton, MA compare to other homes in Hopkinton 01748?

Among the 6,096 homes in Hopkinton 01748, it is worth more than 62% of them ($1,069,495 against a typical $968,408), its price per square foot is higher than 83% of them ($519 against a typical $424), it is bigger than 38% of them (2,060 ft² against a typical 2,330 ft²), its lot is bigger than 45% of them (1.07 ac against a typical 1.23 ac) and it is newer than 54% of them (1993 against a typical 1992). Measured against all of Middlesex County, it is worth more than 74% 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 4 Blackthorne Cir, Hopkinton, MA?

The 2026 property tax bill for 4 Blackthorne Cir, Hopkinton, MA was $13,967. The county assessed it at $990,600.

More homes on Blackthorne Cir

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