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Single Family ResidenceResidential
$9,999,999$1,853 / 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 85How 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 $2,130,000 on Sep 14, 2018

19 ROSEWOOD CT

LAKE GROVE, NY 11755
7
Beds
2
Baths
5,397 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.
1.27 ac
Lot SizeThe size of the land the home sits on, from county records.
2023
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$10M
$9.6M low$10M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$2,130,000 · Sep 14, 2018

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.$6,539,500 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$1,717,100
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$4,822,400
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$10,380,159

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.123 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.96%
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.1 percent flood zone

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
StyleThe architectural style of the home, such as ranch or colonial.Mobile Home
CountySUFFOLK
HeatingThe type of heating system in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Basement
PoolWhether the property has a pool, and what kind, such as in-ground.Yes
ViewThe type of view from the property, or another feature of the site that affects value.Waterfront
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Porch · 374 ft²

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.

H
Southampton High SchoolB-
High · Grades 9–12 · 2.7 mi
M
Southampton Intermediate SchoolC-
Middle · Grades 5–8 · 2.8 mi
E
Southampton Elementary SchoolB-
Elementary · Grades PK–4 · 3.3 mi

District: Southampton Union Free School District

Neighborhood · ZIP 11755These 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.62
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.105
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.66

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.29%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.1%
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.12,482
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,867 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$135,861
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$144,166
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

19 Rosewood 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.

  • Among the most valuable homes in Water Mill
  • Among the highest price per square foot in Lake Grove 11755
  • Among the largest homes in Lake Grove 11755
  • Among the largest lots in Lake Grove 11755
  • Among the newest homes in Lake Grove 11755

What homes are worth in Lake Grove 11755

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

This home
$433K$1.3M

This home is worth more than almost all homes in Lake Grove 11755.

How it measures up in Lake Grove 11755

The dot is this home. The mark in the middle is the typical home in Lake Grove 11755.

Estimated value$9,999,999
CheaperTypical $710,656Pricier

Pricier than almost all homes nearby

Price per ft²$1853
CheaperTypical $372Pricier

Pricier than almost all homes nearby

Living area5,397 ft²
SmallerTypical 1,936 ft²Bigger

Bigger than almost all homes nearby

Lot size1.27 ac
SmallerTypical 0.27 acBigger

Bigger than almost all homes nearby

Year built2023
OlderTypical 1968Newer

Newer than almost all homes nearby

How 19 Rosewood Ct ranks against every home in each area.
MeasureThis homeWater MillLake Grove 11755Suffolk County
Estimated valuepricier than$9,999,999almost all homesalmost all homesalmost all homes
Price per ft²pricier than$185384% of homesalmost all homesalmost all homes
Living areabigger than5,397 ft²74% of homesalmost all homesalmost all homes
Lot sizebigger than1.27 ac60% of homesalmost all homes95% of homes
Year builtnewer than202396% of homesalmost all homesalmost all homes

About 19 Rosewood Ct

How much is 19 Rosewood Ct, Lake Grove, NY worth?

The TopHap Estimate for 19 Rosewood Ct, Lake Grove, NY is $9,999,999 as of Sep 24, 2026. The likely range is $9,648,760 to $9,999,999. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 19 Rosewood Ct, Lake Grove, NY last sell?

19 Rosewood Ct, Lake Grove, NY last sold on Sep 14, 2018 for $2,130,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 19 Rosewood Ct, Lake Grove, NY?

19 Rosewood Ct, Lake Grove, NY has 7 bedrooms, 2 bathrooms and 5,397 square feet of living space.

When was 19 Rosewood Ct, Lake Grove, NY built?

19 Rosewood Ct, Lake Grove, NY was built in 2023, making it 3 years old. It is a mobile home home. The building has 2 stories.

What schools serve 19 Rosewood Ct, Lake Grove, NY?

19 Rosewood Ct, Lake Grove, NY is assigned to Southampton High School (high), rated B-; Southampton Intermediate School (middle), rated C-; Southampton Elementary School (elementary), rated B-. All sit in Southampton Union Free School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 19 Rosewood Ct, Lake Grove, NY compare to other homes in Lake Grove 11755?

Among the 3,795 homes in Lake Grove 11755, it is worth more than almost all of them ($9,999,999 against a typical $710,656), its price per square foot is higher than almost all of them ($1853 against a typical $372), it is bigger than almost all of them (5,397 ft² against a typical 1,936 ft²), its lot is bigger than almost all of them (1.27 ac against a typical 0.27 ac) and it is newer than almost all of them (2023 against a typical 1968). Measured against all of Suffolk County, it is worth more than almost all homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

More homes on Rosewood Ct

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Assigned schools

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