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Single Family ResidenceResidential
$821,688
TopHap EstimateOur estimate of what this home would sell for today, based on nearby sales, the home's size and features, and local price trends. It is a starting point, not an appraisal.· confidence 88How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026

21 ROOSEVELT ST

ISLIP TERRACE, NY 11752
0
Baths
0.23 ac
Lot SizeThe size of the land the home sits on, from county records.

Valuation

$822K
$722K low$921K high

Tax & Assessment

Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$45,800 (2024)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$6,700
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$39,100
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$45,800
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$645,070

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountySuffolk
Lot (acres)The size of the land the home sits on, from county records.0.23
HeatingThe type of heating system in the home.None
PoolWhether the property has a pool, and what kind, such as in-ground.No

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.

H
East Islip High SchoolA
High · Grades 9–12 · 0.7 mi
M
East Islip Middle SchoolC+
Middle · Grades 6–8 · 0.7 mi
E
Connetquot Elementary School
Elementary · Grades KG–2 · 1.3 mi

District: East Islip Union Free School District

Neighborhood · ZIP 11752These 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.43
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 100.68

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.18%
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.1.2%
PopulationHow many people live in this area.9,076
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,454 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$142,239
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$153,915
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

21 Roosevelt 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.

  • Worth more than 96% of homes in Islip Terrace
  • Has a smaller lot than 69% of homes in Islip Terrace 11752

What homes are worth in Islip Terrace 11752

Each bar is how many homes fall in that price range. The marker is this home.

This home
$509K$883K

This home is worth more than 95% of homes in Islip Terrace 11752.

How it measures up in Islip Terrace 11752

The dot is this home. The mark in the middle is the typical home in Islip Terrace 11752.

Estimated value$821,688
CheaperTypical $658,433Pricier

Pricier than 95% of homes nearby

Lot size0.23 ac
SmallerTypical 0.27 acBigger

Bigger than 31% of homes nearby

How 21 Roosevelt St ranks against every home in each area.
MeasureThis homeIslip TerraceIslip Terrace 11752Suffolk County
Estimated valuepricier than$821,68896% of homes95% of homes69% of homes
Lot sizebigger than0.23 ac45% of homes31% of homes38% of homes

About 21 Roosevelt St

How much is 21 Roosevelt St, Islip Terrace, NY worth?

The TopHap Estimate for 21 Roosevelt St, Islip Terrace, NY is $821,688 as of Aug 30, 2026. The likely range is $722,113 to $921,263. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

What schools serve 21 Roosevelt St, Islip Terrace, NY?

21 Roosevelt St, Islip Terrace, NY is assigned to East Islip High School (high), rated A; East Islip Middle School (middle), rated C+; Connetquot Elementary School (elementary). All sit in East Islip Union Free School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Roosevelt St, Islip Terrace, NY compare to other homes in Islip Terrace 11752?

Among the 2,901 homes in Islip Terrace 11752, it is worth more than 95% of them ($821,688 against a typical $658,433) and its lot is bigger than 31% of them (0.23 ac against a typical 0.27 ac). Measured against all of Suffolk County, it is worth more than 69% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

More homes on Roosevelt St

Closest homes

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Assigned schools

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