Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$379,632$257 / 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 90How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026
Last sold for $154,900 on Aug 8, 2017

21 ROCK AVE

AUBURN, MA 01501
3
Beds
1.5
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

$380K
$343K low$416K 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.$5,176 (2026)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$363,500 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$133,300
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$230,200
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$347,500
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$407,393

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
PoolWhether the property has a pool, and what kind, such as in-ground.No

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 SchoolB-
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%

Owner Tools

Do you own this home?
Claim this home

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 82% of homes in Auburn 01501
  • Costs less per square foot than 88% of homes in Auburn 01501
  • Has a smaller lot than 65% of homes in Worcester County
  • 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
$289K$849K

This home is worth more than 18% 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$379,632
CheaperTypical $458,302Pricier

Pricier than 18% of homes nearby

Price per ft²$257
CheaperTypical $322Pricier

Pricier than 12% of homes nearby

Living area1,476 ft²
SmallerTypical 1,414 ft²Bigger

Bigger than 56% of homes nearby

Lot size0.32 ac
SmallerTypical 0.37 acBigger

Bigger than 42% of homes nearby

Year built1930
OlderTypical 1956Newer

Newer than 20% of homes nearby

How 21 Rock Ave ranks against every home in each area.
MeasureThis homeAuburn 01501Worcester County
Estimated valuepricier than$379,63218% of homes24% of homes
Price per ft²pricier than$25712% of homes24% of homes
Living areabigger than1,476 ft²56% of homes38% of homes
Lot sizebigger than0.32 ac42% of homes35% 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 $379,632 as of Oct 21, 2026. The likely range is $343,157 to $416,107. 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, 1.5 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 B-; 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 18% of them ($379,632 against a typical $458,302), its price per square foot is higher than 12% of them ($257 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 42% of them (0.32 ac against a typical 0.37 ac) and it is newer than 20% of them (1930 against a typical 1956). Measured against all of Worcester County, it is worth more than 24% 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 2026 property tax bill for 21 Rock Ave, Auburn, MA was $5,176. The county assessed it at $363,500.

More homes on Rock Ave

Closest homes

More homes in Auburn 01501

Assigned schools

Explore the area

See this home in context

Open 21 Rock Ave on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map