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Single Family ResidenceResidential
$793,857$415 / 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 Aug 30, 2026
Last sold for $337,500 on Dec 5, 2018

21 RENSSELAER DR

SPRING VALLEY, NY 10977
3
Beds
1
Baths
1,915 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.
0.58 ac
Lot SizeThe size of the land the home sits on, from county records.
1958
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

$794K
$716K low$871K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$337,500 · Dec 5, 2018

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.$50,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$16,600
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$33,400
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$50,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$663,130

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.Split Level
CountyRockland
Lot (acres)The size of the land the home sits on, from county records.0.58
HeatingThe type of heating system in the home.Hot Water
FireplaceWhether the home has a fireplace, and what kind.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Patio · 423 ft²

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.

Foreclosure Filings(1)

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

E
Hempstead Elementary SchoolD-
Elementary · Grades KG–6 · 0.8 mi
H
Ramapo High SchoolC-
High · Grades 9–12 · 1.4 mi
M
Pomona Middle SchoolD
Middle · Grades 7–8 · 1.7 mi

District: East Ramapo Central School District (Spring Valley)

Neighborhood · ZIP 10977These 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.93
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 100.112

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.15%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.29%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.71,017
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.6,361 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$76,385
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$106,289
Average tempThe average temperature here across a full year.51°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 Rensselaer Dr 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 69% of homes in Spring Valley 10977
  • Costs more per square foot than 67% of homes in Rockland County
  • Has a bigger lot than 81% of homes in Spring Valley 10977
  • Older than 83% of homes in Spring Valley 10977

What homes are worth in Spring Valley 10977

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

This home
$328K$1.6M

This home is worth more than 31% of homes in Spring Valley 10977.

How it measures up in Spring Valley 10977

The dot is this home. The mark in the middle is the typical home in Spring Valley 10977.

Estimated value$793,857
CheaperTypical $895,000Pricier

Pricier than 31% of homes nearby

Price per ft²$415
CheaperTypical $428Pricier

Pricier than 45% of homes nearby

Living area1,915 ft²
SmallerTypical 2,148 ft²Bigger

Bigger than 37% of homes nearby

Lot size0.58 ac
SmallerTypical 0.24 acBigger

Bigger than 81% of homes nearby

Year built1958
OlderTypical 1974Newer

Newer than 17% of homes nearby

How 21 Rensselaer Dr ranks against every home in each area.
MeasureThis homeSpring Valley 10977Rockland County
Estimated valuepricier than$793,85731% of homes57% of homes
Price per ft²pricier than$41545% of homes67% of homes
Living areabigger than1,915 ft²37% of homes45% of homes
Lot sizebigger than0.58 ac81% of homes78% of homes
Year builtnewer than195817% of homes27% of homes

About 21 Rensselaer Dr

How much is 21 Rensselaer Dr, Spring Valley, NY worth?

The TopHap Estimate for 21 Rensselaer Dr, Spring Valley, NY is $793,857 as of Aug 30, 2026. The likely range is $716,309 to $871,405. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Rensselaer Dr, Spring Valley, NY last sell?

21 Rensselaer Dr, Spring Valley, NY last sold on Dec 5, 2018 for $337,500, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 21 Rensselaer Dr, Spring Valley, NY?

21 Rensselaer Dr, Spring Valley, NY has 3 bedrooms, 1 bathrooms, 1,915 square feet of living space and a 0.58-acre lot.

When was 21 Rensselaer Dr, Spring Valley, NY built?

21 Rensselaer Dr, Spring Valley, NY was built in 1958, making it 68 years old. It is a split level home. The building has 2 stories.

What schools serve 21 Rensselaer Dr, Spring Valley, NY?

21 Rensselaer Dr, Spring Valley, NY is assigned to Hempstead Elementary School (elementary), rated D-; Ramapo High School (high), rated C-; Pomona Middle School (middle), rated D. All sit in East Ramapo Central School District (Spring Valley). Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Rensselaer Dr, Spring Valley, NY compare to other homes in Spring Valley 10977?

Among the 10,962 homes in Spring Valley 10977, it is worth more than 31% of them ($793,857 against a typical $895,000), its price per square foot is higher than 45% of them ($415 against a typical $428), it is bigger than 37% of them (1,915 ft² against a typical 2,148 ft²), its lot is bigger than 81% of them (0.58 ac against a typical 0.24 ac) and it is newer than 17% of them (1958 against a typical 1974). Measured against all of Rockland County, it is worth more than 57% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

More homes on Rensselaer Dr

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Assigned schools

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