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Single Family ResidenceResidential
$699,993$358 / 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 96How 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

1 KEY PL

TAPPAN, NY 10983
3
Beds
3 / 1
Baths
1,957 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.
0.4 ac
Lot SizeThe size of the land the home sits on, from county records.
1966
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$700K
$670K low$730K 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.$200,800 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$68,200
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$132,600
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$200,800
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$629,664

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.Raised Ranch
CountyRockland
Lot (acres)The size of the land the home sits on, from county records.0.40
HeatingThe type of heating system in the home.Hot Water
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, Basement
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Patio · 294 ft²Porch · 257 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.

E
William O Schaefer Elementary School
Elementary · Grades PK–2 · 0.5 mi
H
Tappan Zee High SchoolA+
High · Grades 9–12 · 1.3 mi
M
South Orangetown Middle SchoolB
Middle · Grades 6–8 · 2.1 mi

District: South Orangetown Central School District

Neighborhood · ZIP 10983These 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.41
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.107
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.117

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.38%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.0.6%
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.5,455
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,637 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$153,969
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$184,412
Average tempThe average temperature here across a full year.53°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.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

1 Key Pl 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.

  • Costs less per square foot than 71% of homes in Tappan 10983
  • Has a bigger lot than 79% of homes in Tappan 10983
  • Newer than 66% of homes in Tappan 10983

What homes are worth in Tappan 10983

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

This home
$449K$1.1M

This home is worth more than 39% of homes in Tappan 10983.

How it measures up in Tappan 10983

The dot is this home. The mark in the middle is the typical home in Tappan 10983.

Estimated value$699,993
CheaperTypical $742,419Pricier

Pricier than 39% of homes nearby

Price per ft²$358
CheaperTypical $402Pricier

Pricier than 29% of homes nearby

Living area1,957 ft²
SmallerTypical 1,852 ft²Bigger

Bigger than 55% of homes nearby

Lot size0.4 ac
SmallerTypical 0.32 acBigger

Bigger than 79% of homes nearby

Year built1966
OlderTypical 1965Newer

Newer than 66% of homes nearby

How 1 Key Pl ranks against every home in each area.
MeasureThis homeTappan 10983Rockland County
Estimated valuepricier than$699,99339% of homes42% of homes
Price per ft²pricier than$35829% of homes40% of homes
Living areabigger than1,957 ft²55% of homes47% of homes
Lot sizebigger than0.4 ac79% of homes63% of homes
Year builtnewer than196666% of homes45% of homes

About 1 Key Pl

How much is 1 Key Pl, Tappan, NY worth?

The TopHap Estimate for 1 Key Pl, Tappan, NY is $699,993 as of Aug 30, 2026. The likely range is $670,267 to $729,719. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

How big is 1 Key Pl, Tappan, NY?

1 Key Pl, Tappan, NY has 3 bedrooms, 3 bathrooms, 1,957 square feet of living space and a 0.40-acre lot.

When was 1 Key Pl, Tappan, NY built?

1 Key Pl, Tappan, NY was built in 1966, making it 60 years old. It is a raised ranch home. The building has 1 story.

What schools serve 1 Key Pl, Tappan, NY?

1 Key Pl, Tappan, NY is assigned to William O Schaefer Elementary School (elementary); Tappan Zee High School (high), rated A+; South Orangetown Middle School (middle), rated B. All sit in South Orangetown Central School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 1 Key Pl, Tappan, NY compare to other homes in Tappan 10983?

Among the 1,958 homes in Tappan 10983, it is worth more than 39% of them ($699,993 against a typical $742,419), its price per square foot is higher than 29% of them ($358 against a typical $402), it is bigger than 55% of them (1,957 ft² against a typical 1,852 ft²), its lot is bigger than 79% of them (0.4 ac against a typical 0.32 ac) and it is newer than 66% of them (1966 against a typical 1965). Measured against all of Rockland County, it is worth more than 42% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

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Assigned schools

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