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Single Family ResidenceResidential
$475,400$450 / 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

21 HIGH ST

STOW, MA 01775
3
Beds
1
Baths
1,056 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.
1.02 ac
Lot SizeThe size of the land the home sits on, from county records.
1955
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
6
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$475K
$456K low$495K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,754 (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.$502,500 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$342,200
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$160,300
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$516,900

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.10 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
Lot (acres)The size of the land the home sits on, from county records.1.02
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
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(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
The Center SchoolB-
Elementary · Grades PK–5 · 2.8 mi
M
Hale Middle SchoolA
Middle · Grades 6–8 · 3.0 mi
H
Nashoba Regional High SchoolA
High · Grades 9–12 · 6.5 mi

District: Nashoba School District

Neighborhood · ZIP 01775These 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.43
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.106
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.71

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.38%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.2.9%
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.7,457
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.408 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$175,334
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$176,221
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 High 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 93% of homes in Stow 01775
  • Costs more per square foot than 79% of homes in Stow 01775
  • Smaller than 94% of homes in Stow 01775
  • Has a bigger lot than 80% of homes in Middlesex County
  • Older than 78% of homes in Stow 01775

What homes are worth in Stow 01775

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

This home
$375K$1.5M

This home is worth more than 7% of homes in Stow 01775.

How it measures up in Stow 01775

The dot is this home. The mark in the middle is the typical home in Stow 01775.

Estimated value$475,400
CheaperTypical $793,658Pricier

Pricier than 7% of homes nearby

Price per ft²$450
CheaperTypical $384Pricier

Pricier than 79% of homes nearby

Living area1,056 ft²
SmallerTypical 2,090 ft²Bigger

Bigger than 6% of homes nearby

Lot size1.02 ac
SmallerTypical 1.04 acBigger

Bigger than 49% of homes nearby

Year built1955
OlderTypical 1977Newer

Newer than 22% of homes nearby

How 21 High St ranks against every home in each area.
MeasureThis homeStow 01775Middlesex County
Estimated valuepricier than$475,4007% of homes11% of homes
Price per ft²pricier than$45079% of homes47% of homes
Living areabigger than1,056 ft²6% of homes13% of homes
Lot sizebigger than1.02 ac49% of homes80% of homes
Year builtnewer than195522% of homes47% of homes

About 21 High St

How much is 21 High St, Stow, MA worth?

The TopHap Estimate for 21 High St, Stow, MA is $475,400 as of Jul 14, 2026. The likely range is $455,530 to $495,270. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 High St, Stow, MA last sell?

21 High St, Stow, MA last sold on Apr 16, 1999, according to the county's recorded deed.

How big is 21 High St, Stow, MA?

21 High St, Stow, MA has 3 bedrooms, 1 bathrooms, 1,056 square feet of living space and a 1.02-acre lot.

When was 21 High St, Stow, MA built?

21 High St, Stow, MA was built in 1955, making it 71 years old. It is a ranch home. The building has 1 story.

What schools serve 21 High St, Stow, MA?

21 High St, Stow, MA is assigned to The Center School (elementary), rated B-; Hale Middle School (middle), rated A; Nashoba Regional High School (high), rated A. All sit in Nashoba School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 High St, Stow, MA compare to other homes in Stow 01775?

Among the 2,609 homes in Stow 01775, it is worth more than 7% of them ($475,400 against a typical $793,658), its price per square foot is higher than 79% of them ($450 against a typical $384), it is bigger than 6% of them (1,056 ft² against a typical 2,090 ft²), its lot is bigger than 49% of them (1.02 ac against a typical 1.04 ac) and it is newer than 22% of them (1955 against a typical 1977). Measured against all of Middlesex County, it is worth more than 11% 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 High St, Stow, MA?

The 2025 property tax bill for 21 High St, Stow, MA was $8,754. The county assessed it at $502,500.

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