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Single Family ResidenceResidential
$649,982$417 / 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 86How 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 $605,000 on Aug 13, 2024

21 WASHINGTON AVE

NATICK, MA 01760
4
Beds
3
Baths
1,559 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.
2,801 ft²
Lot SizeThe size of the land the home sits on, from county records.
1880
Year BuiltThe year the home was originally built, according to county records.
3
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

$650K
$562K low$738K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$605,000 · Aug 13, 2024

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,630 (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.$638,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$276,800
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$361,200
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$561,640

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.33 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
CountyMIDDLESEX
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.2022
Lot (acres)The size of the land the home sits on, from county records.0.06
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

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
Natick High SchoolA
High · Grades 9–12 · 0.8 mi
M
Wilson Middle SchoolA
Middle · Grades 5–8 · 1.2 mi
E
Bennett - Hemenway Elementary SchoolA-
Elementary · Grades KG–4 · 1.6 mi

District: Natick School District

Neighborhood · ZIP 01760These 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.99
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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.35%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.7%
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.37,721
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,380 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$133,738
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$174,842
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 Washington Ave 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 80% of homes in Natick 01760
  • Costs less per square foot than 81% of homes in Natick 01760
  • Among the smallest lots in Natick 01760
  • Older than 95% of homes in Natick 01760

What homes are worth in Natick 01760

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

This home
$300K$2M

This home is worth more than 20% of homes in Natick 01760.

How it measures up in Natick 01760

The dot is this home. The mark in the middle is the typical home in Natick 01760.

Estimated value$649,982
CheaperTypical $856,374Pricier

Pricier than 20% of homes nearby

Price per ft²$417
CheaperTypical $487Pricier

Pricier than 19% of homes nearby

Living area1,559 ft²
SmallerTypical 1,705 ft²Bigger

Bigger than 41% of homes nearby

Lot size2,801 ft²
SmallerTypical 0.3 acBigger

Smaller than almost all homes nearby

Year built1880
OlderTypical 1955Newer

Newer than 5% of homes nearby

How 21 Washington Ave ranks against every home in each area.
MeasureThis homeNatick 01760Middlesex County
Estimated valuepricier than$649,98220% of homes32% of homes
Price per ft²pricier than$41719% of homes38% of homes
Living areabigger than1,559 ft²41% of homes38% of homes
Lot sizebigger than2,801 ft²almost no homes4% of homes
Year builtnewer than18805% of homes5% of homes

About 21 Washington Ave

How much is 21 Washington Ave, Natick, MA worth?

The TopHap Estimate for 21 Washington Ave, Natick, MA is $649,982 as of Sep 24, 2026. The likely range is $562,071 to $737,893. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Washington Ave, Natick, MA last sell?

21 Washington Ave, Natick, MA last sold on Aug 13, 2024 for $605,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 21 Washington Ave, Natick, MA?

21 Washington Ave, Natick, MA has 4 bedrooms, 3 bathrooms, 1,559 square feet of living space and a 0.06-acre lot.

When was 21 Washington Ave, Natick, MA built?

21 Washington Ave, Natick, MA was built in 1880, making it 146 years old. The building has 3 stories.

What schools serve 21 Washington Ave, Natick, MA?

21 Washington Ave, Natick, MA is assigned to Natick High School (high), rated A; Wilson Middle School (middle), rated A; Bennett - Hemenway Elementary School (elementary), rated A-. All sit in Natick School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Washington Ave, Natick, MA compare to other homes in Natick 01760?

Among the 12,050 homes in Natick 01760, it is worth more than 20% of them ($649,982 against a typical $856,374), its price per square foot is higher than 19% of them ($417 against a typical $487), it is bigger than 41% of them (1,559 ft² against a typical 1,705 ft²), its lot is bigger than almost none of them (2,801 ft² against a typical 0.3 ac) and it is newer than 5% of them (1880 against a typical 1955). Measured against all of Middlesex County, it is worth more than 32% 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 Washington Ave, Natick, MA?

The 2025 property tax bill for 21 Washington Ave, Natick, MA was $7,630. The county assessed it at $638,000.

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