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Duplex (2 Units, Any Combination)Residential

586 CORNWELL AVE

MALVERNE, NY 11565
2
Baths
1,906 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.
0.12 ac
Lot SizeThe size of the land the home sits on, from county records.
1954
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
9
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$200,000
NASSAU EDUCATORS FCU · recorded Sep 10, 2011

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,070 (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.$496 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$183
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$313
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$499
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$496,000

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.0.12
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
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Detached
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.Patio · 32 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
Maurice W Downing Primary School
Elementary · Grades KG–2 · 0.2 mi
M
Howard T Herber Middle SchoolB-
Middle · Grades 6–8 · 0.9 mi
H
Malverne Senior High SchoolA-
High · Grades 9–12 · 0.9 mi

District: Malverne Union Free School District

Neighborhood · ZIP 11565These 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.53
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.111
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.92

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.35%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.7%
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.8,481
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.7,778 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$164,360
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$184,712
Average tempThe average temperature here across a full year.54°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%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Absentee owner
Company ownedWhether the owner is a company or trust rather than a person.Yes

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

586 Cornwell 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.

  • Bigger than 72% of homes in Malverne 11565
  • Has a smaller lot than 76% of homes in Nassau County
  • Newer than 85% of homes in Malverne 11565

How it measures up in Malverne 11565

The dot is this home. The mark in the middle is the typical home in Malverne 11565.

Living area1,906 ft²
SmallerTypical 1,626 ft²Bigger

Bigger than 72% of homes nearby

Lot size0.12 ac
SmallerTypical 0.13 acBigger

Bigger than 37% of homes nearby

Year built1954
OlderTypical 1941Newer

Newer than 85% of homes nearby

How 586 Cornwell Ave ranks against every home in each area.
MeasureThis homeMalverne 11565Nassau County
Living areabigger than1,906 ft²72% of homes60% of homes
Lot sizebigger than0.12 ac37% of homes24% of homes
Year builtnewer than195485% of homes61% of homes

About 586 Cornwell Ave

When did 586 Cornwell Ave, Malverne, NY last sell?

586 Cornwell Ave, Malverne, NY last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 586 Cornwell Ave, Malverne, NY?

586 Cornwell Ave, Malverne, NY has 2 bathrooms, 1,906 square feet of living space and a 0.12-acre lot.

When was 586 Cornwell Ave, Malverne, NY built?

586 Cornwell Ave, Malverne, NY was built in 1954, making it 72 years old. It is a colonial home. The building has 2 stories.

What schools serve 586 Cornwell Ave, Malverne, NY?

586 Cornwell Ave, Malverne, NY is assigned to Maurice W Downing Primary School (elementary); Howard T Herber Middle School (middle), rated B-; Malverne Senior High School (high), rated A-. All sit in Malverne Union Free School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 586 Cornwell Ave, Malverne, NY compare to other homes in Malverne 11565?

Among the 3,128 homes in Malverne 11565, it is bigger than 72% of them (1,906 ft² against a typical 1,626 ft²), its lot is bigger than 37% of them (0.12 ac against a typical 0.13 ac) and it is newer than 85% of them (1954 against a typical 1941). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 586 Cornwell Ave, Malverne, NY?

The 2025 property tax bill for 586 Cornwell Ave, Malverne, NY was $8,070. The county assessed it at $496.

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