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Single Family ResidenceResidential
$1,098,242$626 / 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 93How 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 $850,000 on Sep 21, 2022

147 CORNWELL AVE

WILLISTON PARK, NY 11596
1
Baths
1,754 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.
0.12 ac
Lot SizeThe size of the land the home sits on, from county records.
1940
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
4
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

$1.1M
$1M low$1.2M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$850,000 · Sep 21, 2022

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$13,459 (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.$671 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$357
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$314
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$671
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$671,000

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.Cape Cod
CountyNASSAU
Lot (acres)The size of the land the home sits on, from county records.0.12
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
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.Patio · 150 ft²Porch · 210 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.

E
Center Street SchoolA
Elementary · Grades KG–5 · 0.2 mi
M
Herricks High SchoolA+
Middle · Grades 9–12 · 0.7 mi

District: Herricks Union Free School District

Neighborhood · ZIP 11596These 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.50
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.110
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.93

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.31%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.2.6%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.10,984
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.8,334 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$162,382
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$199,233
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

147 Cornwell Ave 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 more than 76% of homes in Nassau County
  • Costs more per square foot than 80% of homes in Nassau County
  • Has a smaller lot than 75% of homes in Nassau County
  • Older than 77% of homes in Nassau County

What homes are worth in Williston Park 11596

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

This home
$713K$2.1M

This home is worth more than 66% of homes in Williston Park 11596.

How it measures up in Williston Park 11596

The dot is this home. The mark in the middle is the typical home in Williston Park 11596.

Estimated value$1,098,242
CheaperTypical $963,321Pricier

Pricier than 66% of homes nearby

Price per ft²$626
CheaperTypical $611Pricier

Pricier than 57% of homes nearby

Living area1,754 ft²
SmallerTypical 1,665 ft²Bigger

Bigger than 56% of homes nearby

Lot size0.12 ac
SmallerTypical 0.11 acBigger

Bigger than 57% of homes nearby

Year built1940
OlderTypical 1937Newer

Newer than 56% of homes nearby

How 147 Cornwell Ave ranks against every home in each area.
MeasureThis homeWilliston Park 11596Nassau County
Estimated valuepricier than$1,098,24266% of homes76% of homes
Price per ft²pricier than$62657% of homes80% of homes
Living areabigger than1,754 ft²56% of homes52% of homes
Lot sizebigger than0.12 ac57% of homes25% of homes
Year builtnewer than194056% of homes23% of homes

About 147 Cornwell Ave

How much is 147 Cornwell Ave, Williston Park, NY worth?

The TopHap Estimate for 147 Cornwell Ave, Williston Park, NY is $1,098,242 as of Sep 24, 2026. The likely range is $1,019,357 to $1,177,127. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 147 Cornwell Ave, Williston Park, NY last sell?

147 Cornwell Ave, Williston Park, NY last sold on Sep 21, 2022 for $850,000, according to the county's recorded deed.

How big is 147 Cornwell Ave, Williston Park, NY?

147 Cornwell Ave, Williston Park, NY has 1 bathrooms, 1,754 square feet of living space and a 0.12-acre lot.

When was 147 Cornwell Ave, Williston Park, NY built?

147 Cornwell Ave, Williston Park, NY was built in 1940, making it 86 years old. It is a cape cod home. The building has 1 story.

What schools serve 147 Cornwell Ave, Williston Park, NY?

147 Cornwell Ave, Williston Park, NY is assigned to Center Street School (elementary), rated A; Herricks High School (middle), rated A+. All sit in Herricks Union Free School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 147 Cornwell Ave, Williston Park, NY compare to other homes in Williston Park 11596?

Among the 3,290 homes in Williston Park 11596, it is worth more than 66% of them ($1,098,242 against a typical $963,321), its price per square foot is higher than 57% of them ($626 against a typical $611), it is bigger than 56% of them (1,754 ft² against a typical 1,665 ft²), its lot is bigger than 57% of them (0.12 ac against a typical 0.11 ac) and it is newer than 56% of them (1940 against a typical 1937). Measured against all of Nassau County, it is worth more than 76% 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 147 Cornwell Ave, Williston Park, NY?

The 2025 property tax bill for 147 Cornwell Ave, Williston Park, NY was $13,459. The county assessed it at $671.

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