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Single Family ResidenceResidential
$4,780,310$1,026 / 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

17 ROUND HILL CT

MANHASSET, NY 11030
4.5
Baths
4,660 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.
0.5 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.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$4.8M
$4.1M low$5.5M high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,556 (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.$3,036 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$961
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$2,075
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$439
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$3,036,000

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.40
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
7
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
64
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
80
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
49
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
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
StyleThe architectural style of the home, such as ranch or colonial.Colonial
CountyNASSAU
Lot (acres)The size of the land the home sits on, from county records.0.50
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
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
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 220 ft²Porch · 460 ft²

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.

M
Manhasset Middle SchoolA+
Middle · Grades 7–8 · 0.9 mi
H
Manhasset Secondary SchoolA+
High · Grades 9–12 · 0.9 mi
E
Shelter Rock Elementary SchoolA+
Elementary · Grades KG–6 · 2.1 mi

District: Manhasset Union Free School District

Neighborhood · ZIP 11030These 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.65
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.107
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.103

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.38%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.2%
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.18,158
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,748 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$215,169
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$312,591
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

17 Round Hill 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 Nassau County
  • Among the highest price per square foot in Nassau County
  • Bigger than 97% of homes in Nassau County
  • Has a bigger lot than 94% of homes in Nassau County
  • Among the newest homes in Nassau County

What homes are worth in Manhasset 11030

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

This home
$1.2M$5.2M

This home is worth more than 96% of homes in Manhasset 11030.

How it measures up in Manhasset 11030

The dot is this home. The mark in the middle is the typical home in Manhasset 11030.

Estimated value$4,780,310
CheaperTypical $2,364,470Pricier

Pricier than 96% of homes nearby

Price per ft²$1026
CheaperTypical $871Pricier

Pricier than 89% of homes nearby

Living area4,660 ft²
SmallerTypical 2,756 ft²Bigger

Bigger than 93% of homes nearby

Lot size0.5 ac
SmallerTypical 0.26 acBigger

Bigger than 80% of homes nearby

Year built2023
OlderTypical 1950Newer

Newer than almost all homes nearby

How 17 Round Hill Ct ranks against every home in each area.
MeasureThis homeManhasset 11030Nassau County
Estimated valuepricier than$4,780,31096% of homesalmost all homes
Price per ft²pricier than$102689% of homesalmost all homes
Living areabigger than4,660 ft²93% of homes97% of homes
Lot sizebigger than0.5 ac80% of homes94% of homes
Year builtnewer than2023almost all homesalmost all homes

About 17 Round Hill Ct

How much is 17 Round Hill Ct, Manhasset, NY worth?

The TopHap Estimate for 17 Round Hill Ct, Manhasset, NY is $4,780,310 as of Sep 24, 2026. The likely range is $4,079,557 to $5,481,063. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 17 Round Hill Ct, Manhasset, NY last sell?

17 Round Hill Ct, Manhasset, NY last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 17 Round Hill Ct, Manhasset, NY?

17 Round Hill Ct, Manhasset, NY has 4.5 bathrooms, 4,660 square feet of living space and a 0.50-acre lot.

When was 17 Round Hill Ct, Manhasset, NY built?

17 Round Hill Ct, Manhasset, NY was built in 2023, making it 3 years old. It is a colonial home. The building has 2 stories.

What schools serve 17 Round Hill Ct, Manhasset, NY?

17 Round Hill Ct, Manhasset, NY is assigned to Manhasset Middle School (middle), rated A+; Manhasset Secondary School (high), rated A+; Shelter Rock Elementary School (elementary), rated A+. All sit in Manhasset Union Free School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 17 Round Hill Ct, Manhasset, NY compare to other homes in Manhasset 11030?

Among the 6,144 homes in Manhasset 11030, it is worth more than 96% of them ($4,780,310 against a typical $2,364,470), its price per square foot is higher than 89% of them ($1026 against a typical $871), it is bigger than 93% of them (4,660 ft² against a typical 2,756 ft²), its lot is bigger than 80% of them (0.5 ac against a typical 0.26 ac) and it is newer than almost all of them (2023 against a typical 1950). 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 17 Round Hill Ct, Manhasset, NY?

The 2025 property tax bill for 17 Round Hill Ct, Manhasset, NY was $5,556. The county assessed it at $3,036.

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