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Duplex (2 Units, Any Combination)Residential
Last sold for $400,000 on Oct 21, 2019

435 ISLIP AVE

ISLIP, NY 11751
0
Baths
2,226 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.
0.2 ac
Lot SizeThe size of the land the home sits on, from county records.
1974
Year BuiltThe year the home was originally built, according to county records.

Valuation

Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$400,000 · Oct 21, 2019

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$12,919 (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.$39,400 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$7,100
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$32,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$554,930

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.10 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.minimal

Scores 0–100; higher = greater projected risk.

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
CountySUFFOLK
Lot (acres)The size of the land the home sits on, from county records.0.20
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(4)

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
Wing Elementary School
Elementary · Grades KG–1 · 0.4 mi
H
Islip High SchoolB
High · Grades 9–12 · 1.2 mi
M
Islip Middle SchoolB
Middle · Grades 7–8 · 1.4 mi

District: Islip Union Free School District

Neighborhood · ZIP 11751These 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.59
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.102
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.69

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.19%
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.1.1%
PopulationHow many people live in this area.15,527
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,057 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$119,597
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$137,797
Average tempThe average temperature here across a full year.52°F
Annual precipHow much rain and melted snow falls here in a typical year.48 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.58%

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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

435 Islip 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 78% of homes in Islip
  • Has a smaller lot than 72% of homes in Suffolk County
  • Newer than 85% of homes in Islip

How it measures up in Islip 11751

The dot is this home. The mark in the middle is the typical home in Islip 11751.

Living area2,226 ft²
SmallerTypical 1,687 ft²Bigger

Bigger than 76% of homes nearby

Lot size0.2 ac
SmallerTypical 0.24 acBigger

Bigger than 34% of homes nearby

Year built1974
OlderTypical 1957Newer

Newer than 80% of homes nearby

How 435 Islip Ave ranks against every home in each area.
MeasureThis homeIslipIslip 11751Suffolk County
Living areabigger than2,226 ft²78% of homes76% of homes76% of homes
Lot sizebigger than0.2 ac30% of homes34% of homes28% of homes
Year builtnewer than197485% of homes80% of homes60% of homes

About 435 Islip Ave

When did 435 Islip Ave, Islip, NY last sell?

435 Islip Ave, Islip, NY last sold on Oct 21, 2019 for $400,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 435 Islip Ave, Islip, NY?

435 Islip Ave, Islip, NY has 2,226 square feet of living space and a 0.20-acre lot.

When was 435 Islip Ave, Islip, NY built?

435 Islip Ave, Islip, NY was built in 1974, making it 52 years old. It is a duplex single home.

What schools serve 435 Islip Ave, Islip, NY?

435 Islip Ave, Islip, NY is assigned to Wing Elementary School (elementary); Islip High School (high), rated B; Islip Middle School (middle), rated B. All sit in Islip Union Free School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 435 Islip Ave, Islip, NY compare to other homes in Islip 11751?

Among the 4,170 homes in Islip 11751, it is bigger than 76% of them (2,226 ft² against a typical 1,687 ft²), its lot is bigger than 34% of them (0.2 ac against a typical 0.24 ac) and it is newer than 80% of them (1974 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 435 Islip Ave, Islip, NY?

The 2024 property tax bill for 435 Islip Ave, Islip, NY was $12,919. The county assessed it at $39,400.

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