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Single Family ResidenceResidential
$461,773$336 / 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 Sep 24, 2026

21 ROCKLAND AVE

HILLBURN, NY 10931
3
Beds
1
Baths
1,374 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.
0.17 ac
Lot SizeThe size of the land the home sits on, from county records.
1900
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$462K
$428K low$495K high

Tax & Assessment

Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$28,200 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$8,600
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$19,600
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$28,200
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$374,005

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.Traditional/Old
CountyRockland
Lot (acres)The size of the land the home sits on, from county records.0.17
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Detached
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Patio · 200 ft²

Transaction History(1)

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.

M
Suffern Middle SchoolA-
Middle · Grades 6–8 · 2.2 mi
E
Sloatsburg Elementary SchoolB-
Elementary · Grades PK–2 · 3.0 mi
H
Suffern High SchoolB+
High · Grades 9–12 · 3.1 mi

District: Ramapo Central School District (Suffern)

Neighborhood · ZIP 10931These 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.186
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.108
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.104

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.92%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.14%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.14%
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.962
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.436 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$70,795
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$110,748
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.51 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.52%

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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 Rockland 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 87% of homes in Rockland County
  • Costs less per square foot than 72% of homes in Rockland County
  • Smaller than 79% of homes in Rockland County
  • Has a smaller lot than 73% of homes in Hillburn 10931
  • Older than 96% of homes in Rockland County

What homes are worth in Hillburn 10931

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

This home
$278K$761K

This home is worth more than 50% of homes in Hillburn 10931.

How it measures up in Hillburn 10931

The dot is this home. The mark in the middle is the typical home in Hillburn 10931.

Estimated value$461,773
CheaperTypical $461,773Pricier

Pricier than 50% of homes nearby

Price per ft²$336
CheaperTypical $320Pricier

Pricier than 60% of homes nearby

Living area1,374 ft²
SmallerTypical 1,601 ft²Bigger

Bigger than 35% of homes nearby

Lot size0.17 ac
SmallerTypical 0.22 acBigger

Bigger than 27% of homes nearby

Year built1900
OlderTypical 1910Newer

Newer than 48% of homes nearby

How 21 Rockland Ave ranks against every home in each area.
MeasureThis homeHillburn 10931Rockland County
Estimated valuepricier than$461,77350% of homes13% of homes
Price per ft²pricier than$33660% of homes28% of homes
Living areabigger than1,374 ft²35% of homes21% of homes
Lot sizebigger than0.17 ac27% of homes29% of homes
Year builtnewer than190048% of homes4% of homes

About 21 Rockland Ave

How much is 21 Rockland Ave, Hillburn, NY worth?

The TopHap Estimate for 21 Rockland Ave, Hillburn, NY is $461,773 as of Sep 24, 2026. The likely range is $428,143 to $495,403. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Rockland Ave, Hillburn, NY last sell?

21 Rockland Ave, Hillburn, NY last sold on Dec 12, 2001, according to the county's recorded deed.

How big is 21 Rockland Ave, Hillburn, NY?

21 Rockland Ave, Hillburn, NY has 3 bedrooms, 1 bathrooms, 1,374 square feet of living space and a 0.17-acre lot.

When was 21 Rockland Ave, Hillburn, NY built?

21 Rockland Ave, Hillburn, NY was built in 1900, making it 126 years old. It is a traditional/old home. The building has 2 stories.

What schools serve 21 Rockland Ave, Hillburn, NY?

21 Rockland Ave, Hillburn, NY is assigned to Suffern Middle School (middle), rated A-; Sloatsburg Elementary School (elementary), rated B-; Suffern High School (high), rated B+. All sit in Ramapo Central School District (Suffern). Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Rockland Ave, Hillburn, NY compare to other homes in Hillburn 10931?

Among the 270 homes in Hillburn 10931, it is worth more than 50% of them ($461,773 against a typical $461,773), its price per square foot is higher than 60% of them ($336 against a typical $320), it is bigger than 35% of them (1,374 ft² against a typical 1,601 ft²), its lot is bigger than 27% of them (0.17 ac against a typical 0.22 ac) and it is newer than 48% of them (1900 against a typical 1910). Measured against all of Rockland County, it is worth more than 13% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

More homes on Rockland Ave

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Assigned schools

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