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CondominiumResidential
$324,329$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 96How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026
Last sold for $161,200 on Nov 16, 2018

18 BLACKSMITH ROW

GROTON, MA 01450
Building report
2
Beds
1.5
Baths
1,362 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.
4.2 ac
Lot SizeThe size of the land the home sits on, from county records.
2018
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
3
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

$324K
$311K low$338K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$161,200 · Nov 16, 2018
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$180,629
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$144,503
Loan-to-ValueHow much is still owed on the home compared to what it is worth. 80% means loans equal 80% of our estimate, so it shifts when the estimate does.50%
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.$143,700
SALEM FIVE MORTGAGE CORP · R · recorded May 13, 2020

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,606 (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.$170,872 (2025)
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$170,872
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$511,765

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Condominium
CountyMIDDLESEX
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
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
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(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
Florence Roche Elementary SchoolA
Elementary · Grades KG–4 · 0.8 mi
M
Groton - Dunstable Regional Middle SchoolB+
Middle · Grades 5–8 · 0.9 mi
H
Groton - Dunstable Regional High SchoolA
High · Grades 9–12 · 3.3 mi

District: Groton-Dunstable School District

Neighborhood · ZIP 01450These 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.73
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 100.77

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.4.8%
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.11,438
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.343 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$170,664
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$181,425
Average tempThe average temperature here across a full year.47°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%

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

18 Blacksmith Row 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 98% of homes in Groton 01450
  • Costs less per square foot than 98% of homes in Middlesex County
  • Smaller than 84% of homes in Groton 01450
  • Has a bigger lot than 93% of homes in Middlesex County
  • Newer than 98% of homes in Middlesex County

What homes are worth in Groton 01450

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

This home
$327K$1.5M

This home is worth more than 2% of homes in Groton 01450.

How it measures up in Groton 01450

The dot is this home. The mark in the middle is the typical home in Groton 01450.

Estimated value$324,329
CheaperTypical $755,846Pricier

Pricier than 2% of homes nearby

Price per ft²$238
CheaperTypical $337Pricier

Pricier than 4% of homes nearby

Living area1,362 ft²
SmallerTypical 2,285 ft²Bigger

Bigger than 16% of homes nearby

Lot size4.2 ac
SmallerTypical 1.29 acBigger

Bigger than 86% of homes nearby

Year built2018
OlderTypical 1985Newer

Newer than 97% of homes nearby

How 18 Blacksmith Row ranks against every home in each area.
MeasureThis homeGroton 01450Middlesex County
Estimated valuepricier than$324,3292% of homes4% of homes
Price per ft²pricier than$2384% of homes2% of homes
Living areabigger than1,362 ft²16% of homes28% of homes
Lot sizebigger than4.2 ac86% of homes93% of homes
Year builtnewer than201897% of homes98% of homes

About 18 Blacksmith Row

How much is 18 Blacksmith Row, Groton, MA worth?

The TopHap Estimate for 18 Blacksmith Row, Groton, MA is $324,329 as of Jul 14, 2026. The likely range is $311,128 to $337,530. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 18 Blacksmith Row, Groton, MA last sell?

18 Blacksmith Row, Groton, MA last sold on Nov 16, 2018 for $161,200, according to the county's recorded deed.

How big is 18 Blacksmith Row, Groton, MA?

18 Blacksmith Row, Groton, MA has 2 bedrooms, 1.5 bathrooms and 1,362 square feet of living space.

When was 18 Blacksmith Row, Groton, MA built?

18 Blacksmith Row, Groton, MA was built in 2018, making it 8 years old. The building has 2 stories.

What schools serve 18 Blacksmith Row, Groton, MA?

18 Blacksmith Row, Groton, MA is assigned to Florence Roche Elementary School (elementary), rated A; Groton - Dunstable Regional Middle School (middle), rated B+; Groton - Dunstable Regional High School (high), rated A. All sit in Groton-Dunstable School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 18 Blacksmith Row, Groton, MA compare to other homes in Groton 01450?

Among the 3,834 homes in Groton 01450, it is worth more than 2% of them ($324,329 against a typical $755,846), its price per square foot is higher than 4% of them ($238 against a typical $337), it is bigger than 16% of them (1,362 ft² against a typical 2,285 ft²), its lot is bigger than 86% of them (4.2 ac against a typical 1.29 ac) and it is newer than 97% of them (2018 against a typical 1985). Measured against all of Middlesex County, it is worth more than 4% 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 18 Blacksmith Row, Groton, MA?

The 2025 property tax bill for 18 Blacksmith Row, Groton, MA was $2,606. The county assessed it at $170,872.

Closest homes

More homes in Groton 01450

Assigned schools

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