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Duplex (2 Units, Any Combination)Residential
Last sold for $700,000 on Apr 3, 2026

145 ALTMAR AVE

WEST ISLIP, NY 11795
0
Baths
1,632 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.
0.25 ac
Lot SizeThe size of the land the home sits on, from county records.
1957
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.$700,000 · Apr 3, 2026

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$12,984 (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.$43,800 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$7,400
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$36,400
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$616,901

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.0.25
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(2)

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
Manetuck Elementary SchoolC-
Elementary · Grades KG–5 · 0.6 mi
M
Udall Road Middle SchoolA-
Middle · Grades 6–8 · 1.1 mi
H
West Islip High SchoolA-
High · Grades 9–12 · 2.5 mi

District: West Islip Union Free School District

Neighborhood · ZIP 11795These 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.37
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.104
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.72

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.26%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.2.7%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.3%
PopulationHow many people live in this area.25,576
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,944 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$160,580
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$181,705
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.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

145 Altmar 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.

  • Smaller than 65% of homes in West Islip 11795
  • Older than 74% of homes in Suffolk County

How it measures up in West Islip 11795

The dot is this home. The mark in the middle is the typical home in West Islip 11795.

Living area1,632 ft²
SmallerTypical 1,835 ft²Bigger

Bigger than 35% of homes nearby

Lot size0.25 ac
SmallerTypical 0.25 acBigger

Bigger than 60% of homes nearby

Year built1957
OlderTypical 1957Newer

Newer than 53% of homes nearby

How 145 Altmar Ave ranks against every home in each area.
MeasureThis homeWest Islip 11795Suffolk County
Living areabigger than1,632 ft²35% of homes47% of homes
Lot sizebigger than0.25 ac60% of homes46% of homes
Year builtnewer than195753% of homes26% of homes

About 145 Altmar Ave

When did 145 Altmar Ave, West Islip, NY last sell?

145 Altmar Ave, West Islip, NY last sold on Apr 3, 2026 for $700,000, according to the county's recorded deed.

How big is 145 Altmar Ave, West Islip, NY?

145 Altmar Ave, West Islip, NY has 1,632 square feet of living space and a 0.25-acre lot.

When was 145 Altmar Ave, West Islip, NY built?

145 Altmar Ave, West Islip, NY was built in 1957, making it 69 years old. It is a duplex single home.

What schools serve 145 Altmar Ave, West Islip, NY?

145 Altmar Ave, West Islip, NY is assigned to Manetuck Elementary School (elementary), rated C-; Udall Road Middle School (middle), rated A-; West Islip High School (high), rated A-. All sit in West Islip Union Free School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 145 Altmar Ave, West Islip, NY compare to other homes in West Islip 11795?

Among the 8,124 homes in West Islip 11795, it is bigger than 35% of them (1,632 ft² against a typical 1,835 ft²), its lot is bigger than 60% of them (0.25 ac against a typical 0.25 ac) and it is newer than 53% of them (1957 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 145 Altmar Ave, West Islip, NY?

The 2024 property tax bill for 145 Altmar Ave, West Islip, NY was $12,984. The county assessed it at $43,800.

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