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Single Family ResidenceResidential
$449,073$653 / 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 78How 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 $440,000 on Jan 8, 2026

21 GREEN ST

MERRIMAC, MA 01860
2
Beds
1
Baths
688 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.
3,825 ft²
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.
4
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$449K
$352K low$547K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$440,000 · Jan 8, 2026

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,978 (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.$375,700 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$241,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$134,700
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$438,330

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.Bungalow
CountyESSEX
Lot (acres)The size of the land the home sits on, from county records.0.09
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
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(6)

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
Dr. Frederick N. Sweetsir Elementary School
Elementary · Grades PK–2 · 0.8 mi
M
Pentucket Regional Middle SchoolC+
Middle · Grades 7–8 · 3.3 mi
H
Pentucket Regional High SchoolB+
High · Grades 9–12 · 3.3 mi

District: Pentucket School District

Neighborhood · ZIP 01860These 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.79
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.94
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.95

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.95%
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.8.0%
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.6,895
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.759 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$111,610
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$115,088
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 Green 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 90% of homes in Merrimac 01860
  • Among the highest price per square foot in Merrimac 01860
  • Among the smallest homes in Merrimac 01860
  • Among the smallest lots in Merrimac 01860

What homes are worth in Merrimac 01860

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

This home
$360K$1.2M

This home is worth more than 10% of homes in Merrimac 01860.

How it measures up in Merrimac 01860

The dot is this home. The mark in the middle is the typical home in Merrimac 01860.

Estimated value$449,073
CheaperTypical $652,533Pricier

Pricier than 10% of homes nearby

Price per ft²$653
CheaperTypical $345Pricier

Pricier than almost all homes nearby

Living area688 ft²
SmallerTypical 1,929 ft²Bigger

Smaller than almost all homes nearby

Lot size3,825 ft²
SmallerTypical 0.53 acBigger

Smaller than almost all homes nearby

Year built1957
OlderTypical 1984Newer

Newer than 36% of homes nearby

How 21 Green St ranks against every home in each area.
MeasureThis homeMerrimac 01860Essex County
Estimated valuepricier than$449,07310% of homes12% of homes
Price per ft²pricier than$653almost all homes94% of homes
Living areabigger than688 ft²almost no homes2% of homes
Lot sizebigger than3,825 ft²almost no homes8% of homes
Year builtnewer than195736% of homes50% of homes

About 21 Green St

How much is 21 Green St, Merrimac, MA worth?

The TopHap Estimate for 21 Green St, Merrimac, MA is $449,073 as of Aug 30, 2026. The likely range is $351,575 to $546,571. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Green St, Merrimac, MA last sell?

21 Green St, Merrimac, MA last sold on Jan 8, 2026 for $440,000, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 21 Green St, Merrimac, MA?

21 Green St, Merrimac, MA has 2 bedrooms, 1 bathrooms, 688 square feet of living space and a 0.09-acre lot.

When was 21 Green St, Merrimac, MA built?

21 Green St, Merrimac, MA was built in 1957, making it 69 years old. It is a bungalow home. The building has 1 story.

What schools serve 21 Green St, Merrimac, MA?

21 Green St, Merrimac, MA is assigned to Dr. Frederick N. Sweetsir Elementary School (elementary); Pentucket Regional Middle School (middle), rated C+; Pentucket Regional High School (high), rated B+. All sit in Pentucket School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Green St, Merrimac, MA compare to other homes in Merrimac 01860?

Among the 2,134 homes in Merrimac 01860, it is worth more than 10% of them ($449,073 against a typical $652,533), its price per square foot is higher than almost all of them ($653 against a typical $345), it is bigger than almost none of them (688 ft² against a typical 1,929 ft²), its lot is bigger than almost none of them (3,825 ft² against a typical 0.53 ac) and it is newer than 36% of them (1957 against a typical 1984). Measured against all of Essex County, it is worth more than 12% 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 Green St, Merrimac, MA?

The 2025 property tax bill for 21 Green St, Merrimac, MA was $4,978. The county assessed it at $375,700.

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