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Single Family ResidenceResidential
$632,163$439 / 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 97How 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 $335,000 on Mar 29, 2010

21 BLACKTHORN RD

FRAMINGHAM, MA 01701
3
Beds
1.5
Baths
1,439 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.
0.26 ac
Lot SizeThe size of the land the home sits on, from county records.
1957
Year BuiltThe year the home was originally built, according to county records.
1
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

$632K
$612K low$652K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$335,000 · Mar 29, 2010

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,866 (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.$580,400 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$275,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$304,900
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$555,700
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$595,188

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.9 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.minimal

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
StyleThe architectural style of the home, such as ranch or colonial.Ranch
CountyMIDDLESEX
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.1966
Lot (acres)The size of the land the home sits on, from county records.0.26
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Mat/Raft Foundation (Slab)
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Hot Water
CoolingThe type of cooling or air conditioning in the home.Yes
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, Attached
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck

Transaction History(2)

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.

M
Fuller Middle SchoolD-
Middle · Grades 6–8 · 0.8 mi
E
Miriam F Mccarthy SchoolD-
Elementary · Grades PK–5 · 1.0 mi
H
Framingham High SchoolC-
High · Grades 9–12 · 1.1 mi

District: Framingham School District

Neighborhood · ZIP 01701These 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.65
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.96
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.69

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.36%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.0%
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.35,230
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,009 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$121,597
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$156,184
Average tempThe average temperature here across a full year.49°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

21 Blackthorn Rd 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 70% of homes in Middlesex County
  • Smaller than 69% of homes in Middlesex County
  • Has a smaller lot than 75% of homes in Framingham 01701
  • Older than 65% of homes in Framingham 01701

What homes are worth in Framingham 01701

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

This home
$266K$1.2M

This home is worth more than 39% of homes in Framingham 01701.

How it measures up in Framingham 01701

The dot is this home. The mark in the middle is the typical home in Framingham 01701.

Estimated value$632,163
CheaperTypical $668,156Pricier

Pricier than 39% of homes nearby

Price per ft²$439
CheaperTypical $419Pricier

Pricier than 60% of homes nearby

Living area1,439 ft²
SmallerTypical 1,552 ft²Bigger

Bigger than 42% of homes nearby

Lot size0.26 ac
SmallerTypical 0.46 acBigger

Bigger than 25% of homes nearby

Year built1957
OlderTypical 1961Newer

Newer than 35% of homes nearby

How 21 Blackthorn Rd ranks against every home in each area.
MeasureThis homeFramingham 01701Middlesex County
Estimated valuepricier than$632,16339% of homes30% of homes
Price per ft²pricier than$43960% of homes45% of homes
Living areabigger than1,439 ft²42% of homes31% of homes
Lot sizebigger than0.26 ac25% of homes45% of homes
Year builtnewer than195735% of homes50% of homes

About 21 Blackthorn Rd

How much is 21 Blackthorn Rd, Framingham, MA worth?

The TopHap Estimate for 21 Blackthorn Rd, Framingham, MA is $632,163 as of Sep 24, 2026. The likely range is $612,403 to $651,923. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Blackthorn Rd, Framingham, MA last sell?

21 Blackthorn Rd, Framingham, MA last sold on Mar 29, 2010 for $335,000, according to the county's recorded deed.

How big is 21 Blackthorn Rd, Framingham, MA?

21 Blackthorn Rd, Framingham, MA has 3 bedrooms, 1.5 bathrooms, 1,439 square feet of living space and a 0.26-acre lot.

When was 21 Blackthorn Rd, Framingham, MA built?

21 Blackthorn Rd, Framingham, MA was built in 1957, making it 69 years old. It is a ranch home. The building has 1 story.

What schools serve 21 Blackthorn Rd, Framingham, MA?

21 Blackthorn Rd, Framingham, MA is assigned to Fuller Middle School (middle), rated D-; Miriam F Mccarthy School (elementary), rated D-; Framingham High School (high), rated C-. All sit in Framingham School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Blackthorn Rd, Framingham, MA compare to other homes in Framingham 01701?

Among the 11,160 homes in Framingham 01701, it is worth more than 39% of them ($632,163 against a typical $668,156), its price per square foot is higher than 60% of them ($439 against a typical $419), it is bigger than 42% of them (1,439 ft² against a typical 1,552 ft²), its lot is bigger than 25% of them (0.26 ac against a typical 0.46 ac) and it is newer than 35% of them (1957 against a typical 1961). Measured against all of Middlesex County, it is worth more than 30% 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 Blackthorn Rd, Framingham, MA?

The 2026 property tax bill for 21 Blackthorn Rd, Framingham, MA was $6,866. The county assessed it at $580,400.

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