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Single Family ResidenceResidential
$469,839$316 / 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 88How 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 $450,000 on Feb 21, 2025

21 MARLBORO ST

MAYNARD, MA 01754
2
Beds
1.5
Baths
1,487 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.
0.14 ac
Lot SizeThe size of the land the home sits on, from county records.
1950
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

$470K
$411K low$529K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$450,000 · Feb 21, 2025

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,740 (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.$434,100 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$249,200
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$184,900
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$405,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$426,075

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.Cape Cod
CountyMIDDLESEX
Lot (acres)The size of the land the home sits on, from county records.0.14
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
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(3)

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.

H
Maynard High SchoolA-
High · Grades 9–12 · 0.4 mi
M
Fowler SchoolC+
Middle · Grades 4–8 · 0.6 mi
E
Green MeadowC-
Elementary · Grades PK–3 · 0.7 mi

District: Maynard School District

Neighborhood · ZIP 01754These 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.86
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.101
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.70

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.33%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.1%
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.10,891
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,050 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$115,630
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$143,997
Average tempThe average temperature here across a full year.48°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 Marlboro 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 92% of homes in Maynard 01754
  • Costs less per square foot than 89% of homes in Maynard 01754
  • Smaller than 66% of homes in Middlesex County
  • Has a smaller lot than 85% of homes in Maynard 01754

What homes are worth in Maynard 01754

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

This home
$333K$992K

This home is worth more than 8% of homes in Maynard 01754.

How it measures up in Maynard 01754

The dot is this home. The mark in the middle is the typical home in Maynard 01754.

Estimated value$469,839
CheaperTypical $616,353Pricier

Pricier than 8% of homes nearby

Price per ft²$316
CheaperTypical $404Pricier

Pricier than 11% of homes nearby

Living area1,487 ft²
SmallerTypical 1,586 ft²Bigger

Bigger than 42% of homes nearby

Lot size0.14 ac
SmallerTypical 0.28 acBigger

Bigger than 15% of homes nearby

Year built1950
OlderTypical 1960Newer

Newer than 43% of homes nearby

How 21 Marlboro St ranks against every home in each area.
MeasureThis homeMaynard 01754Middlesex County
Estimated valuepricier than$469,8398% of homes12% of homes
Price per ft²pricier than$31611% of homes12% of homes
Living areabigger than1,487 ft²42% of homes34% of homes
Lot sizebigger than0.14 ac15% of homes23% of homes
Year builtnewer than195043% of homes41% of homes

About 21 Marlboro St

How much is 21 Marlboro St, Maynard, MA worth?

The TopHap Estimate for 21 Marlboro St, Maynard, MA is $469,839 as of Sep 24, 2026. The likely range is $411,119 to $528,559. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Marlboro St, Maynard, MA last sell?

21 Marlboro St, Maynard, MA last sold on Feb 21, 2025 for $450,000, according to the county's recorded deed.

How big is 21 Marlboro St, Maynard, MA?

21 Marlboro St, Maynard, MA has 2 bedrooms, 1.5 bathrooms, 1,487 square feet of living space and a 0.14-acre lot.

When was 21 Marlboro St, Maynard, MA built?

21 Marlboro St, Maynard, MA was built in 1950, making it 76 years old. It is a cape cod home. The building has 2 stories.

What schools serve 21 Marlboro St, Maynard, MA?

21 Marlboro St, Maynard, MA is assigned to Maynard High School (high), rated A-; Fowler School (middle), rated C+; Green Meadow (elementary), rated C-. All sit in Maynard School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Marlboro St, Maynard, MA compare to other homes in Maynard 01754?

Among the 3,620 homes in Maynard 01754, it is worth more than 8% of them ($469,839 against a typical $616,353), its price per square foot is higher than 11% of them ($316 against a typical $404), it is bigger than 42% of them (1,487 ft² against a typical 1,586 ft²), its lot is bigger than 15% of them (0.14 ac against a typical 0.28 ac) and it is newer than 43% of them (1950 against a typical 1960). Measured against all of Middlesex 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 Marlboro St, Maynard, MA?

The 2025 property tax bill for 21 Marlboro St, Maynard, MA was $7,740. The county assessed it at $434,100.

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