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Duplex (2 Units, Any Combination)Residential
Last sold for $662,500 on Oct 11, 2019

4 JEFFERSON CT

ROSLYN HEIGHTS, NY 11577
2
Baths
1,782 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.
0.19 ac
Lot SizeThe size of the land the home sits on, from county records.
1961
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
11
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$662,500 · Oct 11, 2019

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$15,393 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$643 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$307
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$336
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$652
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$643,000

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.Colonial
CountyNASSAU
Lot (acres)The size of the land the home sits on, from county records.0.19
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
PoolWhether the property has a pool, and what kind, such as in-ground.No
ViewThe type of view from the property, or another feature of the site that affects value.Dead End

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
Roslyn Heights Elementary School
Elementary · Grades KG–11 · 0.1 mi
H
Roslyn High SchoolA+
High · Grades 9–12 · 0.5 mi
M
Roslyn Middle SchoolA+
Middle · Grades 6–8 · 0.7 mi

District: Roslyn Union Free School District

Neighborhood · ZIP 11577These 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.66
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 100.101

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.34%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.2%
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.12,075
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,980 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$184,838
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$245,584
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.56%

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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

4 Jefferson Ct 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.

  • Smaller than 76% of homes in Roslyn Heights 11577
  • Has a bigger lot than 74% of homes in Nassau County
  • Newer than 78% of homes in Nassau County

How it measures up in Roslyn Heights 11577

The dot is this home. The mark in the middle is the typical home in Roslyn Heights 11577.

Living area1,782 ft²
SmallerTypical 2,392 ft²Bigger

Bigger than 24% of homes nearby

Lot size0.19 ac
SmallerTypical 0.24 acBigger

Bigger than 35% of homes nearby

Year built1961
OlderTypical 1951Newer

Newer than 70% of homes nearby

How 4 Jefferson Ct ranks against every home in each area.
MeasureThis homeRoslyn HeightsRoslyn Heights 11577Nassau County
Living areabigger than1,782 ft²29% of homes24% of homes53% of homes
Lot sizebigger than0.19 ac48% of homes35% of homes74% of homes
Year builtnewer than196161% of homes70% of homes78% of homes

About 4 Jefferson Ct

When did 4 Jefferson Ct, Roslyn Heights, NY last sell?

4 Jefferson Ct, Roslyn Heights, NY last sold on Oct 11, 2019 for $662,500, according to the county's recorded deed.

How big is 4 Jefferson Ct, Roslyn Heights, NY?

4 Jefferson Ct, Roslyn Heights, NY has 2 bathrooms, 1,782 square feet of living space and a 0.19-acre lot.

When was 4 Jefferson Ct, Roslyn Heights, NY built?

4 Jefferson Ct, Roslyn Heights, NY was built in 1961, making it 65 years old. It is a colonial home. The building has 2 stories.

What schools serve 4 Jefferson Ct, Roslyn Heights, NY?

4 Jefferson Ct, Roslyn Heights, NY is assigned to Roslyn Heights Elementary School (elementary); Roslyn High School (high), rated A+; Roslyn Middle School (middle), rated A+. All sit in Roslyn Union Free School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4 Jefferson Ct, Roslyn Heights, NY compare to other homes in Roslyn Heights 11577?

Among the 3,676 homes in Roslyn Heights 11577, it is bigger than 24% of them (1,782 ft² against a typical 2,392 ft²), its lot is bigger than 35% of them (0.19 ac against a typical 0.24 ac) and it is newer than 70% of them (1961 against a typical 1951). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 4 Jefferson Ct, Roslyn Heights, NY?

The 2025 property tax bill for 4 Jefferson Ct, Roslyn Heights, NY was $15,393. The county assessed it at $643.

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