Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$517,810$380 / 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 92How 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 $240,000 on Oct 7, 2014

21 ELLIS PL

OSSINING, NY 10562
3
Beds
1.5
Baths
1,364 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.
3,920 ft²
Lot SizeThe size of the land the home sits on, from county records.
1897
Year BuiltThe year the home was originally built, according to county records.
2
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.

Valuation

$518K
$478K low$558K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$240,000 · Oct 7, 2014

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$9,927 (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.$472,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$213,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$259,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$436,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$472,000

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.37
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
5
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
68
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
96
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
16
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
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.Traditional/Old
CountyWESTCHESTER
Lot (acres)The size of the land the home sits on, from county records.0.09
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(2)

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.

H
Ossining High SchoolC-
High · Grades 9–12 · 0.1 mi
M
Anne M. Dorner Middle SchoolC
Middle · Grades 6–8 · 0.9 mi
E
Brookside School
Elementary · Grades 1–2 · 1.6 mi

District: Ossining Union Free School District

Neighborhood · ZIP 10562These 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.72
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.107
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.109

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.23%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.1%
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.31,317
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,164 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$111,343
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$154,080
Average tempThe average temperature here across a full year.52°F
Annual precipHow much rain and melted snow falls here in a typical year.50 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.55%

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

21 Ellis 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 less than 87% of homes in Westchester County
  • Costs less per square foot than 88% of homes in Westchester County
  • Smaller than 83% of homes in Westchester County
  • Has a smaller lot than 85% of homes in Westchester County
  • Older than 97% of homes in Westchester County

What homes are worth in Ossining 10562

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

This home
$379K$1.5M

This home is worth more than 17% of homes in Ossining 10562.

How it measures up in Ossining 10562

The dot is this home. The mark in the middle is the typical home in Ossining 10562.

Estimated value$517,810
CheaperTypical $651,105Pricier

Pricier than 17% of homes nearby

Price per ft²$380
CheaperTypical $410Pricier

Pricier than 33% of homes nearby

Living area1,364 ft²
SmallerTypical 1,666 ft²Bigger

Bigger than 26% of homes nearby

Lot size3,920 ft²
SmallerTypical 0.16 acBigger

Bigger than 29% of homes nearby

Year built1897
OlderTypical 1955Newer

Newer than 10% of homes nearby

How 21 Ellis Pl ranks against every home in each area.
MeasureThis homeOssining 10562Westchester County
Estimated valuepricier than$517,81017% of homes13% of homes
Price per ft²pricier than$38033% of homes12% of homes
Living areabigger than1,364 ft²26% of homes17% of homes
Lot sizebigger than3,920 ft²29% of homes15% of homes
Year builtnewer than189710% of homes3% of homes

About 21 Ellis Pl

How much is 21 Ellis Pl, Ossining, NY worth?

The TopHap Estimate for 21 Ellis Pl, Ossining, NY is $517,810 as of Sep 24, 2026. The likely range is $478,102 to $557,518. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Ellis Pl, Ossining, NY last sell?

21 Ellis Pl, Ossining, NY last sold on Oct 7, 2014 for $240,000, according to the county's recorded deed.

How big is 21 Ellis Pl, Ossining, NY?

21 Ellis Pl, Ossining, NY has 3 bedrooms, 1.5 bathrooms, 1,364 square feet of living space and a 0.09-acre lot.

When was 21 Ellis Pl, Ossining, NY built?

21 Ellis Pl, Ossining, NY was built in 1897, making it 129 years old. It is a traditional/old home. The building has 2 stories.

What schools serve 21 Ellis Pl, Ossining, NY?

21 Ellis Pl, Ossining, NY is assigned to Ossining High School (high), rated C-; Anne M. Dorner Middle School (middle), rated C; Brookside School (elementary). All sit in Ossining Union Free School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Ellis Pl, Ossining, NY compare to other homes in Ossining 10562?

Among the 7,619 homes in Ossining 10562, it is worth more than 17% of them ($517,810 against a typical $651,105), its price per square foot is higher than 33% of them ($380 against a typical $410), it is bigger than 26% of them (1,364 ft² against a typical 1,666 ft²), its lot is bigger than 29% of them (3,920 ft² against a typical 0.16 ac) and it is newer than 10% of them (1897 against a typical 1955). Measured against all of Westchester County, it is worth more than 13% 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 21 Ellis Pl, Ossining, NY?

The 2025 property tax bill for 21 Ellis Pl, Ossining, NY was $9,927. The county assessed it at $472,000.

More homes on Ellis Pl

Closest homes

More homes in Ossining 10562

Assigned schools

Explore the area

See this home in context

Open 21 Ellis Pl 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