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Single Family ResidenceResidential
$680,030$420 / 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 Jul 14, 2026

673 CORNWELL AVE

MALVERNE, NY 11565
4
Beds
2
Baths
1,619 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.
1946
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

$680K
$629K low$731K high
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$330,030
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$264,024
Loan-to-ValueHow much is still owed on the home compared to what it is worth. 80% means loans equal 80% of our estimate, so it shifts when the estimate does.53%
1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$350,000
BETHPAGE FCU · recorded Feb 23, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,172 (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.$462 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$223
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$239
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$436
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$474,000

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.0.15
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, Detached
PoolWhether the property has a pool, and what kind, such as in-ground.No

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
Valley Stream North High SchoolC+
Middle · Grades 7–12 · 0.5 mi

District: Valley Stream Central High School District

Neighborhood · ZIP 11565These 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.53
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.111
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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.35%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.7%
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.8,481
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.7,778 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$164,360
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$184,712
Average tempThe average temperature here across a full year.54°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%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
Company ownedWhether the owner is a company or trust rather than a person.No

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

673 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 less than 89% of homes in Malverne 11565
  • Costs less per square foot than 86% of homes in Malverne 11565
  • Has a bigger lot than 75% of homes in Malverne 11565
  • Older than 73% of homes in Nassau County

What homes are worth in Malverne 11565

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

This home
$614K$1.1M

This home is worth more than 11% of homes in Malverne 11565.

How it measures up in Malverne 11565

The dot is this home. The mark in the middle is the typical home in Malverne 11565.

Estimated value$680,030
CheaperTypical $795,504Pricier

Pricier than 11% of homes nearby

Price per ft²$420
CheaperTypical $484Pricier

Pricier than 14% of homes nearby

Living area1,619 ft²
SmallerTypical 1,627 ft²Bigger

Bigger than 49% of homes nearby

Lot size0.16 ac
SmallerTypical 0.13 acBigger

Bigger than 75% of homes nearby

Year built1946
OlderTypical 1941Newer

Newer than 61% of homes nearby

How 673 Cornwell Ave ranks against every home in each area.
MeasureThis homeMalverne 11565Nassau County
Estimated valuepricier than$680,03011% of homes19% of homes
Price per ft²pricier than$42014% of homes16% of homes
Living areabigger than1,619 ft²49% of homes43% of homes
Lot sizebigger than0.16 ac75% of homes55% of homes
Year builtnewer than194661% of homes27% of homes

About 673 Cornwell Ave

How much is 673 Cornwell Ave, Malverne, NY worth?

The TopHap Estimate for 673 Cornwell Ave, Malverne, NY is $680,030 as of Jul 14, 2026. The likely range is $629,240 to $730,820. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 673 Cornwell Ave, Malverne, NY last sell?

673 Cornwell Ave, Malverne, NY last sold on Aug 8, 2012, according to the county's recorded deed.

How big is 673 Cornwell Ave, Malverne, NY?

673 Cornwell Ave, Malverne, NY has 4 bedrooms, 2 bathrooms, 1,619 square feet of living space and a 0.15-acre lot.

When was 673 Cornwell Ave, Malverne, NY built?

673 Cornwell Ave, Malverne, NY was built in 1946, making it 80 years old. It is a cape cod home. The building has 1 story.

What schools serve 673 Cornwell Ave, Malverne, NY?

673 Cornwell Ave, Malverne, NY is assigned to Valley Stream North High School (middle), rated C+. All sit in Valley Stream Central High School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 673 Cornwell Ave, Malverne, NY compare to other homes in Malverne 11565?

Among the 3,128 homes in Malverne 11565, it is worth more than 11% of them ($680,030 against a typical $795,504), its price per square foot is higher than 14% of them ($420 against a typical $484), it is bigger than 49% of them (1,619 ft² against a typical 1,627 ft²), its lot is bigger than 75% of them (0.16 ac against a typical 0.13 ac) and it is newer than 61% of them (1946 against a typical 1941). Measured against all of Nassau County, it is worth more than 19% 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 673 Cornwell Ave, Malverne, NY?

The 2025 property tax bill for 673 Cornwell Ave, Malverne, NY was $6,172. The county assessed it at $462.

Closest homes

More homes in Malverne 11565

Assigned schools

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