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Single Family ResidenceResidential
$464,160$285 / 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 93How 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 $449,900 on Jan 8, 2026

21 PROSPECT AVE

DUDLEY, MA 01571
3
Beds
2
Baths
1,627 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.
0.18 ac
Lot SizeThe size of the land the home sits on, from county records.
1935
Year BuiltThe year the home was originally built, according to county records.
1
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

$464K
$431K low$497K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$449,900 · Jan 8, 2026

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,741 (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.$353,900 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$68,100
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$285,800
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$353,900

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
CountyWorcester
Lot (acres)The size of the land the home sits on, from county records.0.18
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Hot Water

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.

E
Mason Road Elementary School
Elementary · Grades PK–1 · 0.4 mi
M
Dudley Middle SchoolC-
Middle · Grades 5–8 · 1.2 mi
H
Shepherd Hill Regional High SchoolC+
High · Grades 9–12 · 1.3 mi

District: Dudley-Charlton Regional School District

Neighborhood · ZIP 01571These 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.80
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 100.58

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.94%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.18%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.1%
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.12,092
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.554 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$89,706
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$103,557
Average tempThe average temperature here across a full year.47°F
Annual precipHow much rain and melted snow falls here in a typical year.50 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.50%

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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 Prospect 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.

  • Has a smaller lot than 93% of homes in Dudley 01571
  • Older than 86% of homes in Dudley 01571

What homes are worth in Dudley 01571

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

This home
$197K$803K

This home is worth more than 56% of homes in Dudley 01571.

How it measures up in Dudley 01571

The dot is this home. The mark in the middle is the typical home in Dudley 01571.

Estimated value$464,160
CheaperTypical $447,261Pricier

Pricier than 56% of homes nearby

Price per ft²$285
CheaperTypical $283Pricier

Pricier than 51% of homes nearby

Living area1,627 ft²
SmallerTypical 1,602 ft²Bigger

Bigger than 51% of homes nearby

Lot size0.18 ac
SmallerTypical 0.53 acBigger

Bigger than 7% of homes nearby

Year built1935
OlderTypical 1972Newer

Newer than 14% of homes nearby

How 21 Prospect Ave ranks against every home in each area.
MeasureThis homeDudley 01571Worcester County
Estimated valuepricier than$464,16056% of homes46% of homes
Price per ft²pricier than$28551% of homes38% of homes
Living areabigger than1,627 ft²51% of homes47% of homes
Lot sizebigger than0.18 ac7% of homes15% of homes
Year builtnewer than193514% of homes25% of homes

About 21 Prospect Ave

How much is 21 Prospect Ave, Dudley, MA worth?

The TopHap Estimate for 21 Prospect Ave, Dudley, MA is $464,160 as of Aug 30, 2026. The likely range is $431,329 to $496,991. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Prospect Ave, Dudley, MA last sell?

21 Prospect Ave, Dudley, MA last sold on Jan 8, 2026 for $449,900, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 21 Prospect Ave, Dudley, MA?

21 Prospect Ave, Dudley, MA has 3 bedrooms, 2 bathrooms, 1,627 square feet of living space and a 0.18-acre lot.

When was 21 Prospect Ave, Dudley, MA built?

21 Prospect Ave, Dudley, MA was built in 1935, making it 91 years old. It is a bungalow home. The building has 1 story.

What schools serve 21 Prospect Ave, Dudley, MA?

21 Prospect Ave, Dudley, MA is assigned to Mason Road Elementary School (elementary); Dudley Middle School (middle), rated C-; Shepherd Hill Regional High School (high), rated C+. All sit in Dudley-Charlton Regional School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Prospect Ave, Dudley, MA compare to other homes in Dudley 01571?

Among the 3,789 homes in Dudley 01571, it is worth more than 56% of them ($464,160 against a typical $447,261), its price per square foot is higher than 51% of them ($285 against a typical $283), it is bigger than 51% of them (1,627 ft² against a typical 1,602 ft²), its lot is bigger than 7% of them (0.18 ac against a typical 0.53 ac) and it is newer than 14% of them (1935 against a typical 1972). Measured against all of Worcester County, it is worth more than 46% 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 Prospect Ave, Dudley, MA?

The 2025 property tax bill for 21 Prospect Ave, Dudley, MA was $3,741. The county assessed it at $353,900.

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