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Single Family ResidenceResidential
$392,473$266 / 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 91How 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
Last sold for $154,900 on Aug 8, 2017

21 ROCK AVE

AUBURN, MA 01501
3
Beds
2 / 1
Baths
1,476 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.
0.32 ac
Lot SizeThe size of the land the home sits on, from county records.
1930
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
5
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$392K
$356K low$428K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$154,900 · Aug 8, 2017

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,966 (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.$347,500 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$126,900
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$220,600
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$347,500

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.Conventional
CountyWorcester
Lot (acres)The size of the land the home sits on, from county records.0.32
RoofThe main material covering the roof, such as asphalt shingle or tile.Shingle
HeatingThe type of heating system in the home.Hot Water

Transaction History(9)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Foreclosure Filings(1)

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

H
Auburn Senior High SchoolC+
High · Grades 9–12 · 0.3 mi
E
Bryn Mawr
Elementary · Grades KG–2 · 0.3 mi
M
Auburn Middle SchoolB
Middle · Grades 6–8 · 2.2 mi

District: Auburn School District

Neighborhood · ZIP 01501These 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.73
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.109
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.63

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.24%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.0%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.17,276
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,061 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$102,092
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$118,349
Average tempThe average temperature here across a full year.47°F
Annual precipHow much rain and melted snow falls here in a typical year.49 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 Rock 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 77% of homes in Auburn 01501
  • Costs less per square foot than 83% of homes in Auburn 01501
  • Older than 80% of homes in Auburn 01501

What homes are worth in Auburn 01501

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

This home
$280K$842K

This home is worth more than 23% of homes in Auburn 01501.

How it measures up in Auburn 01501

The dot is this home. The mark in the middle is the typical home in Auburn 01501.

Estimated value$392,473
CheaperTypical $455,724Pricier

Pricier than 23% of homes nearby

Price per ft²$266
CheaperTypical $322Pricier

Pricier than 17% of homes nearby

Living area1,476 ft²
SmallerTypical 1,414 ft²Bigger

Bigger than 56% of homes nearby

Lot size0.32 ac
SmallerTypical 0.36 acBigger

Bigger than 44% of homes nearby

Year built1930
OlderTypical 1955Newer

Newer than 20% of homes nearby

How 21 Rock Ave ranks against every home in each area.
MeasureThis homeAuburn 01501Worcester County
Estimated valuepricier than$392,47323% of homes25% of homes
Price per ft²pricier than$26617% of homes26% of homes
Living areabigger than1,476 ft²56% of homes38% of homes
Lot sizebigger than0.32 ac44% of homes36% of homes
Year builtnewer than193020% of homes24% of homes

About 21 Rock Ave

How much is 21 Rock Ave, Auburn, MA worth?

The TopHap Estimate for 21 Rock Ave, Auburn, MA is $392,473 as of Jul 14, 2026. The likely range is $356,466 to $428,480. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Rock Ave, Auburn, MA last sell?

21 Rock Ave, Auburn, MA last sold on Aug 8, 2017 for $154,900, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 21 Rock Ave, Auburn, MA?

21 Rock Ave, Auburn, MA has 3 bedrooms, 2 bathrooms, 1,476 square feet of living space and a 0.32-acre lot.

When was 21 Rock Ave, Auburn, MA built?

21 Rock Ave, Auburn, MA was built in 1930, making it 96 years old. It is a conventional home. The building has 2 stories.

What schools serve 21 Rock Ave, Auburn, MA?

21 Rock Ave, Auburn, MA is assigned to Auburn Senior High School (high), rated C+; Bryn Mawr (elementary); Auburn Middle School (middle), rated B. All sit in Auburn School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Rock Ave, Auburn, MA compare to other homes in Auburn 01501?

Among the 5,847 homes in Auburn 01501, it is worth more than 23% of them ($392,473 against a typical $455,724), its price per square foot is higher than 17% of them ($266 against a typical $322), it is bigger than 56% of them (1,476 ft² against a typical 1,414 ft²), its lot is bigger than 44% of them (0.32 ac against a typical 0.36 ac) and it is newer than 20% of them (1930 against a typical 1955). Measured against all of Worcester County, it is worth more than 25% 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 Rock Ave, Auburn, MA?

The 2025 property tax bill for 21 Rock Ave, Auburn, MA was $4,966. The county assessed it at $347,500.

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