Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$547,767$424 / 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 Sep 24, 2026
Last sold for $300,500 on Aug 27, 2002

51 ROSEMARY PL

EAST ISLIP, NY 11730
0
Baths
1,292 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.
1995
Year BuiltThe year the home was originally built, according to county records.

Valuation

$548K
$505K low$591K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$300,500 · Aug 27, 2002

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.$32,400 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$10,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$22,400
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$456,338

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.84 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.0.25
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 · 0.4 mi
H
East Islip High SchoolB+
High · Grades 9–12 · 1.9 mi
M
East Islip Middle SchoolA
Middle · Grades 6–8 · 1.9 mi

District: East Islip Union Free School District

Neighborhood · ZIP 11730These 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.53
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.109
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.22%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.2.0%
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.14,421
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,954 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$138,646
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$163,331
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%

Owner Tools

Do you own this home?
Claim this home

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

51 Rosemary Pl 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 less than 94% of homes in East Islip 11730
  • Costs less per square foot than 66% of homes in East Islip 11730
  • Smaller than 79% of homes in East Islip 11730
  • Newer than 85% of homes in East Islip 11730

What homes are worth in East Islip 11730

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

This home
$501K$2.4M

This home is worth more than 6% of homes in East Islip 11730.

How it measures up in East Islip 11730

The dot is this home. The mark in the middle is the typical home in East Islip 11730.

Estimated value$547,767
CheaperTypical $718,787Pricier

Pricier than 6% of homes nearby

Price per ft²$424
CheaperTypical $464Pricier

Pricier than 34% of homes nearby

Living area1,292 ft²
SmallerTypical 1,608 ft²Bigger

Bigger than 21% of homes nearby

Lot size0.25 ac
SmallerTypical 0.25 acBigger

Bigger than 53% of homes nearby

Year built1995
OlderTypical 1959Newer

Newer than 85% of homes nearby

How 51 Rosemary Pl ranks against every home in each area.
MeasureThis homeEast Islip 11730Suffolk County
Estimated valuepricier than$547,7676% of homes17% of homes
Price per ft²pricier than$42434% of homes54% of homes
Living areabigger than1,292 ft²21% of homes27% of homes
Lot sizebigger than0.25 ac53% of homes45% of homes
Year builtnewer than199585% of homes82% of homes

About 51 Rosemary Pl

How much is 51 Rosemary Pl, East Islip, NY worth?

The TopHap Estimate for 51 Rosemary Pl, East Islip, NY is $547,767 as of Sep 24, 2026. The likely range is $504,754 to $590,780. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 51 Rosemary Pl, East Islip, NY last sell?

51 Rosemary Pl, East Islip, NY last sold on Aug 27, 2002 for $300,500, according to the county's recorded deed.

How big is 51 Rosemary Pl, East Islip, NY?

51 Rosemary Pl, East Islip, NY has 1,292 square feet of living space and a 0.25-acre lot.

When was 51 Rosemary Pl, East Islip, NY built?

51 Rosemary Pl, East Islip, NY was built in 1995, making it 31 years old.

What schools serve 51 Rosemary Pl, East Islip, NY?

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

How does 51 Rosemary Pl, East Islip, NY compare to other homes in East Islip 11730?

Among the 4,388 homes in East Islip 11730, it is worth more than 6% of them ($547,767 against a typical $718,787), its price per square foot is higher than 34% of them ($424 against a typical $464), it is bigger than 21% of them (1,292 ft² against a typical 1,608 ft²), its lot is bigger than 53% of them (0.25 ac against a typical 0.25 ac) and it is newer than 85% of them (1995 against a typical 1959). Measured against all of Suffolk County, it is worth more than 17% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

More homes on Rosemary Pl

Closest homes

More homes in East Islip 11730

Assigned schools

Explore the area

See this home in context

Open 51 Rosemary Pl on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map