Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$808,463$813 / 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 94How 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

15 BELMONT CIR

SYOSSET, NY 11791
1
Baths
994 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.
0.16 ac
Lot SizeThe size of the land the home sits on, from county records.
1953
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
6
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$808K
$760K low$857K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$15,292 (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.$487 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$353
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$134
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$487
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$487,000

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.17 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.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.Ranch
CountyNASSAU
Lot (acres)The size of the land the home sits on, from county records.0.16
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
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.Carport (Unspecified)
PoolWhether the property has a pool, and what kind, such as in-ground.No

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.

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
South Grove Elementary SchoolA+
Elementary · Grades KG–5 · 0.3 mi
M
H.B. Thompson Middle SchoolA+
Middle · Grades 6–8 · 0.6 mi
H
Syosset Senior High SchoolA+
High · Grades 9–12 · 2.0 mi

District: Syosset Central School District

Neighborhood · ZIP 11791These 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.58
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.108
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.92

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.34%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.1%
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.25,701
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,064 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$180,785
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$232,702
Average tempThe average temperature here across a full year.52°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%

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

15 Belmont Cir 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 97% of homes in Syosset
  • Costs more per square foot than 97% of homes in Nassau County
  • Among the smallest homes in Syosset
  • Has a smaller lot than 73% of homes in Syosset 11791
  • Older than 84% of homes in Syosset 11791

What homes are worth in Syosset 11791

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

This home
$798K$3.6M

This home is worth more than 3% of homes in Syosset 11791.

How it measures up in Syosset 11791

The dot is this home. The mark in the middle is the typical home in Syosset 11791.

Estimated value$808,463
CheaperTypical $1,236,581Pricier

Pricier than 3% of homes nearby

Price per ft²$813
CheaperTypical $614Pricier

Pricier than 96% of homes nearby

Living area994 ft²
SmallerTypical 2,048 ft²Bigger

Smaller than almost all homes nearby

Lot size0.16 ac
SmallerTypical 0.22 acBigger

Bigger than 27% of homes nearby

Year built1953
OlderTypical 1957Newer

Newer than 16% of homes nearby

How 15 Belmont Cir ranks against every home in each area.
MeasureThis homeSyossetSyosset 11791Nassau County
Estimated valuepricier than$808,4633% of homes3% of homes46% of homes
Price per ft²pricier than$81396% of homes96% of homes97% of homes
Living areabigger than994 ft²almost no homesalmost no homes3% of homes
Lot sizebigger than0.16 ac32% of homes27% of homes60% of homes
Year builtnewer than195317% of homes16% of homes56% of homes

About 15 Belmont Cir

How much is 15 Belmont Cir, Syosset, NY worth?

The TopHap Estimate for 15 Belmont Cir, Syosset, NY is $808,463 as of Oct 21, 2026. The likely range is $760,174 to $856,752. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 15 Belmont Cir, Syosset, NY last sell?

15 Belmont Cir, Syosset, NY last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 15 Belmont Cir, Syosset, NY?

15 Belmont Cir, Syosset, NY has 1 bathrooms, 994 square feet of living space and a 0.16-acre lot.

When was 15 Belmont Cir, Syosset, NY built?

15 Belmont Cir, Syosset, NY was built in 1953, making it 73 years old. It is a ranch home. The building has 1 story.

What schools serve 15 Belmont Cir, Syosset, NY?

15 Belmont Cir, Syosset, NY is assigned to South Grove Elementary School (elementary), rated A+; H.B. Thompson Middle School (middle), rated A+; Syosset Senior High School (high), rated A+. All sit in Syosset Central School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 15 Belmont Cir, Syosset, NY compare to other homes in Syosset 11791?

Among the 8,086 homes in Syosset 11791, it is worth more than 3% of them ($808,463 against a typical $1,236,581), its price per square foot is higher than 96% of them ($813 against a typical $614), it is bigger than almost none of them (994 ft² against a typical 2,048 ft²), its lot is bigger than 27% of them (0.16 ac against a typical 0.22 ac) and it is newer than 16% of them (1953 against a typical 1957). Measured against all of Nassau County, it is worth more than 46% 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 15 Belmont Cir, Syosset, NY?

The 2025 property tax bill for 15 Belmont Cir, Syosset, NY was $15,292. The county assessed it at $487.

More homes on Belmont Cir

Closest homes

More homes in Syosset 11791

Assigned schools

Explore the area

See this home in context

Open 15 Belmont Cir 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