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Single Family ResidenceResidential
$836,631$513 / 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

20 SAINT THOMAS PL

MALVERNE, NY 11565
1.5
Baths
1,632 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.
0.18 ac
Lot SizeThe size of the land the home sits on, from county records.
1938
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
9
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

$837K
$781K low$892K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$11,104 (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.$573 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$240
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$333
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$555
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$573,000

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.Colonial
CountyNASSAU
Lot (acres)The size of the land the home sits on, from county records.0.18
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Slate
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, 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 · 225 ft²Porch · 96 ft²

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

E
Maurice W Downing Primary School
Elementary · Grades KG–2 · 0.1 mi
M
Howard T Herber Middle SchoolA-
Middle · Grades 6–8 · 0.6 mi
H
Malverne Senior High SchoolB
High · Grades 9–12 · 0.6 mi

District: Malverne Union Free 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%

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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

20 Saint Thomas Pl 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 66% of homes in Malverne 11565
  • Costs more per square foot than 69% of homes in Malverne 11565
  • Has a bigger lot than 84% of homes in Malverne 11565
  • Older than 78% 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
$560K$1.1M

This home is worth more than 66% 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$836,631
CheaperTypical $794,559Pricier

Pricier than 66% of homes nearby

Price per ft²$513
CheaperTypical $484Pricier

Pricier than 69% of homes nearby

Living area1,632 ft²
SmallerTypical 1,626 ft²Bigger

Bigger than 51% of homes nearby

Lot size0.18 ac
SmallerTypical 0.13 acBigger

Bigger than 84% of homes nearby

Year built1938
OlderTypical 1941Newer

Newer than 44% of homes nearby

How 20 Saint Thomas Pl ranks against every home in each area.
MeasureThis homeMalverne 11565Nassau County
Estimated valuepricier than$836,63166% of homes51% of homes
Price per ft²pricier than$51369% of homes48% of homes
Living areabigger than1,632 ft²51% of homes44% of homes
Lot sizebigger than0.18 ac84% of homes69% of homes
Year builtnewer than193844% of homes22% of homes

About 20 Saint Thomas Pl

How much is 20 Saint Thomas Pl, Malverne, NY worth?

The TopHap Estimate for 20 Saint Thomas Pl, Malverne, NY is $836,631 as of Sep 24, 2026. The likely range is $781,352 to $891,910. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 20 Saint Thomas Pl, Malverne, NY last sell?

20 Saint Thomas Pl, Malverne, NY last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 20 Saint Thomas Pl, Malverne, NY?

20 Saint Thomas Pl, Malverne, NY has 1.5 bathrooms, 1,632 square feet of living space and a 0.18-acre lot.

When was 20 Saint Thomas Pl, Malverne, NY built?

20 Saint Thomas Pl, Malverne, NY was built in 1938, making it 88 years old. It is a colonial home. The building has 2 stories.

What schools serve 20 Saint Thomas Pl, Malverne, NY?

20 Saint Thomas Pl, Malverne, NY is assigned to Maurice W Downing Primary School (elementary); Howard T Herber Middle School (middle), rated A-; Malverne Senior High School (high), rated B. All sit in Malverne Union Free School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 20 Saint Thomas Pl, Malverne, NY compare to other homes in Malverne 11565?

Among the 3,128 homes in Malverne 11565, it is worth more than 66% of them ($836,631 against a typical $794,559), its price per square foot is higher than 69% of them ($513 against a typical $484), it is bigger than 51% of them (1,632 ft² against a typical 1,626 ft²), its lot is bigger than 84% of them (0.18 ac against a typical 0.13 ac) and it is newer than 44% of them (1938 against a typical 1941). Measured against all of Nassau County, it is worth more than 51% 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 20 Saint Thomas Pl, Malverne, NY?

The 2025 property tax bill for 20 Saint Thomas Pl, Malverne, NY was $11,104. The county assessed it at $573.

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