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Duplex (2 Units, Any Combination)Residential
Last sold for $880,000 on Dec 10, 2025

165 S WILLIAM ST

PEARL RIVER, NY 10965
6
Beds
3
Baths
2,252 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.
0.26 ac
Lot SizeThe size of the land the home sits on, from county records.
1962
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$880,000 · Dec 10, 2025

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$18,284 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$233,800 (2024)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$42,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$191,300
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$233,800
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$684,827

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Duplex (2 Units, Any Combination)
StyleThe architectural style of the home, such as ranch or colonial.Duplex Single
CountyROCKLAND
Lot (acres)The size of the land the home sits on, from county records.0.26
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
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Porch · 473 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
Franklin Avenue SchoolB-
Elementary · Grades KG–4 · 0.3 mi
H
Pearl River High SchoolA+
High · Grades 8–12 · 0.8 mi
M
Pearl River Middle SchoolB
Middle · Grades 5–7 · 1.0 mi

District: Pearl River Union Free School District

Neighborhood · ZIP 10965These 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.71
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.112
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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.28%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.2%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.9%
PopulationHow many people live in this area.15,807
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,914 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$139,939
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$161,425
Average tempThe average temperature here across a full year.52°F
Annual precipHow much rain and melted snow falls here in a typical year.50 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

165 S William St 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.

  • Bigger than 75% of homes in Pearl River 10965
  • Newer than 68% of homes in Pearl River 10965

How it measures up in Pearl River 10965

The dot is this home. The mark in the middle is the typical home in Pearl River 10965.

Living area2,252 ft²
SmallerTypical 1,787 ft²Bigger

Bigger than 75% of homes nearby

Lot size0.26 ac
SmallerTypical 0.32 acBigger

Bigger than 41% of homes nearby

Year built1962
OlderTypical 1957Newer

Newer than 68% of homes nearby

How 165 S William St ranks against every home in each area.
MeasureThis homePearl River 10965Rockland County
Living areabigger than2,252 ft²75% of homes62% of homes
Lot sizebigger than0.26 ac41% of homes41% of homes
Year builtnewer than196268% of homes35% of homes

About 165 S William St

When did 165 S William St, Pearl River, NY last sell?

165 S William St, Pearl River, NY last sold on Dec 10, 2025 for $880,000, according to the county's recorded deed.

How big is 165 S William St, Pearl River, NY?

165 S William St, Pearl River, NY has 6 bedrooms, 3 bathrooms, 2,252 square feet of living space and a 0.26-acre lot.

When was 165 S William St, Pearl River, NY built?

165 S William St, Pearl River, NY was built in 1962, making it 64 years old. It is a duplex single home. The building has 2 stories.

What schools serve 165 S William St, Pearl River, NY?

165 S William St, Pearl River, NY is assigned to Franklin Avenue School (elementary), rated B-; Pearl River High School (high), rated A+; Pearl River Middle School (middle), rated B. All sit in Pearl River Union Free School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 165 S William St, Pearl River, NY compare to other homes in Pearl River 10965?

Among the 4,705 homes in Pearl River 10965, it is bigger than 75% of them (2,252 ft² against a typical 1,787 ft²), its lot is bigger than 41% of them (0.26 ac against a typical 0.32 ac) and it is newer than 68% of them (1962 against a typical 1957). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 165 S William St, Pearl River, NY?

The 2024 property tax bill for 165 S William St, Pearl River, NY was $18,284. The county assessed it at $233,800.

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