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Single Family ResidenceResidential
$1,386,376$441 / 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 95How 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 $820,000 on Jan 11, 2021

18 O CONNELL CT

NY
0
Baths
3,144 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.
0.49 ac
Lot SizeThe size of the land the home sits on, from county records.
1980
Year BuiltThe year the home was originally built, according to county records.

Valuation

$1.4M
$1.3M low$1.5M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$820,000 · Jan 11, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$20,844 (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.$72,300 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$20,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$51,800
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,018,309

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.12 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.45%
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.Single Family Residence
CountySUFFOLK
Lot (acres)The size of the land the home sits on, from county records.0.49
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(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
Timber Point Elementary School
Elementary · Grades KG–2 · 0.8 mi
H
East Islip High SchoolA
High · Grades 9–12 · 1.9 mi
M
East Islip Middle SchoolC+
Middle · Grades 6–8 · 1.9 mi

District: East Islip Union Free School District

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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

18 O Connell Ct 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 88% of homes in Suffolk County
  • Costs less per square foot than 81% of homes in Great River
  • Bigger than 93% of homes in Great River
  • Has a bigger lot than 73% of homes in Suffolk County
  • Newer than 66% of homes in Suffolk County

How it measures up in Great River

The dot is this home. The mark in the middle is the typical home in Great River.

Estimated value$1,386,376
CheaperTypical $1,128,857Pricier

Pricier than 83% of homes nearby

Price per ft²$441
CheaperTypical $484Pricier

Pricier than 19% of homes nearby

Living area3,144 ft²
SmallerTypical 1,842 ft²Bigger

Bigger than 93% of homes nearby

Lot size0.49 ac
SmallerTypical 0.47 acBigger

Bigger than 56% of homes nearby

Year built1980
OlderTypical 1979Newer

Newer than 51% of homes nearby

How 18 O Connell Ct ranks against every home in each area.
MeasureThis homeGreat RiverSuffolk County
Estimated valuepricier than$1,386,37683% of homes88% of homes
Price per ft²pricier than$44119% of homes60% of homes
Living areabigger than3,144 ft²93% of homes93% of homes
Lot sizebigger than0.49 ac56% of homes73% of homes
Year builtnewer than198051% of homes66% of homes

About 18 O Connell Ct

How much is 18 O Connell Ct, , NY worth?

The TopHap Estimate for 18 O Connell Ct, , NY is $1,386,376 as of Aug 30, 2026. The likely range is $1,311,290 to $1,461,462. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 18 O Connell Ct, , NY last sell?

18 O Connell Ct, , NY last sold on Jan 11, 2021 for $820,000, according to the county's recorded deed.

How big is 18 O Connell Ct, , NY?

18 O Connell Ct, , NY has 3,144 square feet of living space and a 0.49-acre lot.

When was 18 O Connell Ct, , NY built?

18 O Connell Ct, , NY was built in 1980, making it 46 years old.

What schools serve 18 O Connell Ct, , NY?

18 O Connell Ct, , NY is assigned to Timber Point Elementary School (elementary); East Islip High School (high), rated A; East Islip Middle School (middle), rated C+. All sit in East Islip Union Free School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 18 O Connell Ct, , NY compare to other homes in Great River?

Among the 582 homes in Great River, it is worth more than 83% of them ($1,386,376 against a typical $1,128,857), its price per square foot is higher than 19% of them ($441 against a typical $484), it is bigger than 93% of them (3,144 ft² against a typical 1,842 ft²), its lot is bigger than 56% of them (0.49 ac against a typical 0.47 ac) and it is newer than 51% of them (1980 against a typical 1979). Measured against all of Suffolk County, it is worth more than 88% 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 18 O Connell Ct, , NY?

The 2024 property tax bill for 18 O Connell Ct, , NY was $20,844. The county assessed it at $72,300.

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Assigned schools

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