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Single Family ResidenceResidential
$9,999,999$751 / 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 90How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026
Last sold for $6,380,000 on Apr 2, 2024

75 CORNWELLS BEACH RD

PORT WASHINGTON, NY 11050
9.5
Baths
13,322 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.
4.86 ac
Lot SizeThe size of the land the home sits on, from county records.
1998
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
13
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
6
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$10M
$9.2M 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.$6,380,000 · Apr 2, 2024

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$152,020 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$7,952 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$2,492
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$5,460
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$8,467
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$7,952,000

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.197 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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 coastal 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.Mansion
CountyNASSAU
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Concrete
RoofThe main material covering the roof, such as asphalt shingle or tile.Slate
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
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, Attached
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.DeckElevatorPatio · 116 ft²Porch · 986 ft²

Transaction History(3)

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
Manorhaven Elementary SchoolA-
Elementary · Grades KG–5 · 1.2 mi
M
Carrie Palmer Weber Middle SchoolA+
Middle · Grades 6–8 · 3.1 mi
H
Paul D Schreiber Senior High SchoolA
High · Grades 9–12 · 3.1 mi

District: Port Washington Union Free School District

Neighborhood · ZIP 11050These 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.105
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.113
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.110

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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.34%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.0%
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.29,250
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,417 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$153,902
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$209,399
Average tempThe average temperature here across a full year.53°F
Annual precipHow much rain and melted snow falls here in a typical year.49 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.56%

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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

75 Cornwells Beach Rd 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 Port Washington 11050
  • Costs more per square foot than 94% of homes in Nassau County
  • Among the largest homes in Port Washington 11050
  • Among the largest lots in Port Washington 11050
  • Newer than 93% of homes in Nassau County

What homes are worth in Port Washington 11050

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

This home
$709K$5.9M

This home is worth more than almost all homes in Port Washington 11050.

How it measures up in Port Washington 11050

The dot is this home. The mark in the middle is the typical home in Port Washington 11050.

Estimated value$9,999,999
CheaperTypical $1,339,730Pricier

Pricier than almost all homes nearby

Price per ft²$751
CheaperTypical $677Pricier

Pricier than 74% of homes nearby

Living area13,322 ft²
SmallerTypical 2,141 ft²Bigger

Bigger than almost all homes nearby

Lot size4.86 ac
SmallerTypical 0.16 acBigger

Bigger than almost all homes nearby

Year built1998
OlderTypical 1953Newer

Newer than 85% of homes nearby

How 75 Cornwells Beach Rd ranks against every home in each area.
MeasureThis homePort Washington 11050Nassau County
Estimated valuepricier than$9,999,999almost all homesalmost all homes
Price per ft²pricier than$75174% of homes94% of homes
Living areabigger than13,322 ft²almost all homesalmost all homes
Lot sizebigger than4.86 acalmost all homesalmost all homes
Year builtnewer than199885% of homes93% of homes

About 75 Cornwells Beach Rd

How much is 75 Cornwells Beach Rd, Port Washington, NY worth?

The TopHap Estimate for 75 Cornwells Beach Rd, Port Washington, NY is $9,999,999 as of Oct 21, 2026. The likely range is $9,169,481 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 75 Cornwells Beach Rd, Port Washington, NY last sell?

75 Cornwells Beach Rd, Port Washington, NY last sold on Apr 2, 2024 for $6,380,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 75 Cornwells Beach Rd, Port Washington, NY?

75 Cornwells Beach Rd, Port Washington, NY has 9.5 bathrooms and 13,322 square feet of living space.

When was 75 Cornwells Beach Rd, Port Washington, NY built?

75 Cornwells Beach Rd, Port Washington, NY was built in 1998, making it 28 years old. It is a mansion home. The building has 2 stories.

What schools serve 75 Cornwells Beach Rd, Port Washington, NY?

75 Cornwells Beach Rd, Port Washington, NY is assigned to Manorhaven Elementary School (elementary), rated A-; Carrie Palmer Weber Middle School (middle), rated A+; Paul D Schreiber Senior High School (high), rated A. All sit in Port Washington Union Free School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 75 Cornwells Beach Rd, Port Washington, NY compare to other homes in Port Washington 11050?

Among the 8,945 homes in Port Washington 11050, it is worth more than almost all of them ($9,999,999 against a typical $1,339,730), its price per square foot is higher than 74% of them ($751 against a typical $677), it is bigger than almost all of them (13,322 ft² against a typical 2,141 ft²), its lot is bigger than almost all of them (4.86 ac against a typical 0.16 ac) and it is newer than 85% of them (1998 against a typical 1953). Measured against all of Nassau 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.

What are the property taxes on 75 Cornwells Beach Rd, Port Washington, NY?

The 2025 property tax bill for 75 Cornwells Beach Rd, Port Washington, NY was $152,020. The county assessed it at $7,952.

More homes on Cornwells Beach Rd

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