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Single Family ResidenceResidential
$1,510,836$412 / 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 Aug 30, 2026
Last sold for $1,236,113 on Dec 21, 2021

21 KATIE WAY

HOLLISTON, MA 01746
4
Beds
3.5
Baths
3,663 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.
0.72 ac
Lot SizeThe size of the land the home sits on, from county records.
2021
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$1.5M
$1.4M low$1.6M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$1,236,113 · Dec 21, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$20,383 (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.$1,391,300 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$268,400
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$1,122,900
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,437,635

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.Colonial
CountyMIDDLESEX
Lot (acres)The size of the land the home sits on, from county records.0.72
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Gas
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

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.

H
Holliston High SchoolA
High · Grades 9–12 · 1.4 mi
M
Robert H. Adams Middle SchoolA-
Middle · Grades 6–8 · 2.1 mi
E
Placentino Elementary School
Elementary · Grades PK–2 · 2.3 mi

District: Holliston School District

Neighborhood · ZIP 01746These 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.11
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.93
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.67

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.39%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.1%
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.15,460
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.813 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$148,945
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$184,552
Average tempThe average temperature here across a full year.49°F
Annual precipHow much rain and melted snow falls here in a typical year.48 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 Katie Way 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 more than 98% of homes in Holliston 01746
  • Bigger than 94% of homes in Middlesex County
  • Has a bigger lot than 73% of homes in Middlesex County
  • Among the newest homes in Holliston 01746

What homes are worth in Holliston 01746

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

This home
$225K$1.5M

This home is worth more than 98% of homes in Holliston 01746.

How it measures up in Holliston 01746

The dot is this home. The mark in the middle is the typical home in Holliston 01746.

Estimated value$1,510,836
CheaperTypical $724,529Pricier

Pricier than 98% of homes nearby

Price per ft²$412
CheaperTypical $390Pricier

Pricier than 61% of homes nearby

Living area3,663 ft²
SmallerTypical 1,881 ft²Bigger

Bigger than 93% of homes nearby

Lot size0.72 ac
SmallerTypical 0.7 acBigger

Bigger than 51% of homes nearby

Year built2021
OlderTypical 1968Newer

Newer than almost all homes nearby

How 21 Katie Way ranks against every home in each area.
MeasureThis homeHolliston 01746Middlesex County
Estimated valuepricier than$1,510,83698% of homes89% of homes
Price per ft²pricier than$41261% of homes37% of homes
Living areabigger than3,663 ft²93% of homes94% of homes
Lot sizebigger than0.72 ac51% of homes73% of homes
Year builtnewer than2021almost all homesalmost all homes

About 21 Katie Way

How much is 21 Katie Way, Holliston, MA worth?

The TopHap Estimate for 21 Katie Way, Holliston, MA is $1,510,836 as of Aug 30, 2026. The likely range is $1,445,749 to $1,575,923. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Katie Way, Holliston, MA last sell?

21 Katie Way, Holliston, MA last sold on Dec 21, 2021 for $1,236,113, according to the county's recorded deed.

How big is 21 Katie Way, Holliston, MA?

21 Katie Way, Holliston, MA has 4 bedrooms, 3.5 bathrooms, 3,663 square feet of living space and a 0.72-acre lot.

When was 21 Katie Way, Holliston, MA built?

21 Katie Way, Holliston, MA was built in 2021, making it 5 years old. It is a colonial home. The building has 2 stories.

What schools serve 21 Katie Way, Holliston, MA?

21 Katie Way, Holliston, MA is assigned to Holliston High School (high), rated A; Robert H. Adams Middle School (middle), rated A-; Placentino Elementary School (elementary). All sit in Holliston School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Katie Way, Holliston, MA compare to other homes in Holliston 01746?

Among the 5,229 homes in Holliston 01746, it is worth more than 98% of them ($1,510,836 against a typical $724,529), its price per square foot is higher than 61% of them ($412 against a typical $390), it is bigger than 93% of them (3,663 ft² against a typical 1,881 ft²), its lot is bigger than 51% of them (0.72 ac against a typical 0.7 ac) and it is newer than almost all of them (2021 against a typical 1968). Measured against all of Middlesex County, it is worth more than 89% 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 Katie Way, Holliston, MA?

The 2025 property tax bill for 21 Katie Way, Holliston, MA was $20,383. The county assessed it at $1,391,300.

More homes on Katie Way

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