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Single Family ResidenceResidential
$945,946$608 / 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 Aug 30, 2026
Last sold for $565,000 on Mar 5, 2021

78 SPLIT ROCK RD

SYOSSET, NY 11791
1.5
Baths
1,556 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.
0.22 ac
Lot SizeThe size of the land the home sits on, from county records.
1960
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
7
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

$946K
$891K low$1M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$565,000 · Mar 5, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$16,491 (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.$540 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$312
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$228
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$531
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$540,000

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.13 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%
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.0.22
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.Garage, Detached
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(4)

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
Village Elementary SchoolA-
Elementary · Grades KG–5 · 0.6 mi
M
South Woods Middle SchoolA-
Middle · Grades 6–8 · 0.9 mi
H
Syosset Senior High SchoolA+
High · Grades 9–12 · 1.0 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%

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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

78 Split Rock 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.

  • Worth less than 89% of homes in Syosset 11791
  • Costs more per square foot than 77% of homes in Nassau County
  • Smaller than 80% of homes in Syosset 11791
  • Has a bigger lot than 80% of homes in Nassau County
  • Newer than 77% of homes in Nassau County

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
$808K$3.8M

This home is worth more than 11% 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$945,946
CheaperTypical $1,239,609Pricier

Pricier than 11% of homes nearby

Price per ft²$608
CheaperTypical $615Pricier

Pricier than 47% of homes nearby

Living area1,556 ft²
SmallerTypical 2,061 ft²Bigger

Bigger than 20% of homes nearby

Lot size0.22 ac
SmallerTypical 0.21 acBigger

Bigger than 50% of homes nearby

Year built1960
OlderTypical 1957Newer

Newer than 64% of homes nearby

How 78 Split Rock Rd ranks against every home in each area.
MeasureThis homeSyossetSyosset 11791Nassau County
Estimated valuepricier than$945,94613% of homes11% of homes66% of homes
Price per ft²pricier than$60842% of homes47% of homes77% of homes
Living areabigger than1,556 ft²23% of homes20% of homes38% of homes
Lot sizebigger than0.22 ac59% of homes50% of homes80% of homes
Year builtnewer than196071% of homes64% of homes77% of homes

About 78 Split Rock Rd

How much is 78 Split Rock Rd, Syosset, NY worth?

The TopHap Estimate for 78 Split Rock Rd, Syosset, NY is $945,946 as of Aug 30, 2026. The likely range is $891,239 to $1,000,653. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 78 Split Rock Rd, Syosset, NY last sell?

78 Split Rock Rd, Syosset, NY last sold on Mar 5, 2021 for $565,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 78 Split Rock Rd, Syosset, NY?

78 Split Rock Rd, Syosset, NY has 1.5 bathrooms, 1,556 square feet of living space and a 0.22-acre lot.

When was 78 Split Rock Rd, Syosset, NY built?

78 Split Rock Rd, Syosset, NY was built in 1960, making it 66 years old. It is a ranch home. The building has 1 story.

What schools serve 78 Split Rock Rd, Syosset, NY?

78 Split Rock Rd, Syosset, NY is assigned to Village Elementary School (elementary), rated A-; South Woods 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 78 Split Rock Rd, Syosset, NY compare to other homes in Syosset 11791?

Among the 8,086 homes in Syosset 11791, it is worth more than 11% of them ($945,946 against a typical $1,239,609), its price per square foot is higher than 47% of them ($608 against a typical $615), it is bigger than 20% of them (1,556 ft² against a typical 2,061 ft²), its lot is bigger than 50% of them (0.22 ac against a typical 0.21 ac) and it is newer than 64% of them (1960 against a typical 1957). Measured against all of Nassau County, it is worth more than 66% 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 78 Split Rock Rd, Syosset, NY?

The 2025 property tax bill for 78 Split Rock Rd, Syosset, NY was $16,491. The county assessed it at $540.

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See this home in context

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