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Single Family ResidenceResidential
$723,717$256 / ft²
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 92How 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
Last sold for $357,500 on Apr 28, 2020

20 SEA CLIFF ST

ISLIP TERRACE, NY 11752
0
Baths
2,831 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.
0.68 ac
Lot SizeThe size of the land the home sits on, from county records.
1973
Year BuiltThe year the home was originally built, according to county records.

Valuation

$724K
$664K low$784K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$357,500 · Apr 28, 2020

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$14,704 (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.$47,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$13,700
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$33,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$661,972

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Triplex
CountySUFFOLK
Lot (acres)The size of the land the home sits on, from county records.0.68
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.

Foreclosure Filings(1)

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Francis J O'Neill SchoolC
Elementary · Grades KG–6 · 1.5 mi
M
Ralph Reed SchoolD
Middle · Grades 7–8 · 2.1 mi
H
Central Islip Senior High SchoolD+
High · Grades 9–12 · 2.3 mi

District: Central 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

20 Sea Cliff 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 81% of homes in North Great River
  • Among the lowest price per square foot in Islip Terrace 11752
  • Bigger than 96% of homes in Islip Terrace 11752
  • Has a bigger lot than 94% of homes in Islip Terrace 11752
  • Newer than 87% 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
$518K$958K

This home is worth more than 77% 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$723,717
CheaperTypical $659,175Pricier

Pricier than 77% of homes nearby

Price per ft²$256
CheaperTypical $431Pricier

Cheaper than almost all homes nearby

Living area2,831 ft²
SmallerTypical 1,598 ft²Bigger

Bigger than 96% of homes nearby

Lot size0.68 ac
SmallerTypical 0.27 acBigger

Bigger than 94% of homes nearby

Year built1973
OlderTypical 1963Newer

Newer than 87% of homes nearby

How 20 Sea Cliff St ranks against every home in each area.
MeasureThis homeNorth Great RiverIslip Terrace 11752Suffolk County
Estimated valuepricier than$723,71781% of homes77% of homes56% of homes
Price per ft²pricier than$2562% of homesalmost no homes3% of homes
Living areabigger than2,831 ft²93% of homes96% of homes90% of homes
Lot sizebigger than0.68 ac89% of homes94% of homes83% of homes
Year builtnewer than197385% of homes87% of homes58% of homes

About 20 Sea Cliff St

How much is 20 Sea Cliff St, Islip Terrace, NY worth?

The TopHap Estimate for 20 Sea Cliff St, Islip Terrace, NY is $723,717 as of Aug 30, 2026. The likely range is $663,749 to $783,685. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 20 Sea Cliff St, Islip Terrace, NY last sell?

20 Sea Cliff St, Islip Terrace, NY last sold on Apr 28, 2020 for $357,500, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 20 Sea Cliff St, Islip Terrace, NY?

20 Sea Cliff St, Islip Terrace, NY has 2,831 square feet of living space and a 0.68-acre lot.

When was 20 Sea Cliff St, Islip Terrace, NY built?

20 Sea Cliff St, Islip Terrace, NY was built in 1973, making it 53 years old. It is a triplex home.

What schools serve 20 Sea Cliff St, Islip Terrace, NY?

20 Sea Cliff St, Islip Terrace, NY is assigned to Francis J O'Neill School (elementary), rated C; Ralph Reed School (middle), rated D; Central Islip Senior High School (high), rated D+. All sit in Central Islip Union Free School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 20 Sea Cliff 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 77% of them ($723,717 against a typical $659,175), its price per square foot is higher than almost none of them ($256 against a typical $431), it is bigger than 96% of them (2,831 ft² against a typical 1,598 ft²), its lot is bigger than 94% of them (0.68 ac against a typical 0.27 ac) and it is newer than 87% of them (1973 against a typical 1963). Measured against all of Suffolk County, it is worth more than 56% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 20 Sea Cliff St, Islip Terrace, NY?

The 2024 property tax bill for 20 Sea Cliff St, Islip Terrace, NY was $14,704. The county assessed it at $47,000.

More homes on Sea Cliff St

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Assigned schools

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