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Single Family ResidenceResidential
$685,929$361 / 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 87How 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

856 COUNTY ROUTE 21

WINDHAM, NY 12496
3
Beds
2
Baths
1,902 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.
2.6 ac
Lot SizeThe size of the land the home sits on, from county records.
1987
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$686K
$597K low$775K 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.$685,929
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$548,743

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,740 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$284,700 (2024)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$36,200
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$248,500
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$284,700
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$466,721

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.38
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
8
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
50
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
94
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
39
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.

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.Contemporary
CountyGreene
Lot (acres)The size of the land the home sits on, from county records.2.60
HeatingThe type of heating system in the home.Hot Water
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.Porch · 422 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
Windham Ashland Central SchoolB-
Elementary · Grades PK–12 · 4.3 mi

District: Windham-Ashland-Jewett Central School District

Neighborhood · ZIP 12496These 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.163
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.86
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.58

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.36%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.16%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.3%
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.1,686
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.39 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$75,311
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$95,729
Average tempThe average temperature here across a full year.43°F
Annual precipHow much rain and melted snow falls here in a typical year.43 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.52%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Absentee owner
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

856 County Route 21 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 87% of homes in Greene County
  • Costs more per square foot than 82% of homes in Greene County
  • Bigger than 69% of homes in Greene County
  • Has a bigger lot than 73% of homes in Windham 12496
  • Newer than 69% of homes in Greene County

What homes are worth in Windham 12496

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

This home
$166K$2.3M

This home is worth more than 62% of homes in Windham 12496.

How it measures up in Windham 12496

The dot is this home. The mark in the middle is the typical home in Windham 12496.

Estimated value$685,929
CheaperTypical $553,082Pricier

Pricier than 62% of homes nearby

Price per ft²$361
CheaperTypical $354Pricier

Pricier than 52% of homes nearby

Living area1,902 ft²
SmallerTypical 1,672 ft²Bigger

Bigger than 62% of homes nearby

Lot size2.6 ac
SmallerTypical 1 acBigger

Bigger than 73% of homes nearby

Year built1987
OlderTypical 1986Newer

Newer than 64% of homes nearby

How 856 County Route 21 ranks against every home in each area.
MeasureThis homeWindham 12496Greene County
Estimated valuepricier than$685,92962% of homes87% of homes
Price per ft²pricier than$36152% of homes82% of homes
Living areabigger than1,902 ft²62% of homes69% of homes
Lot sizebigger than2.6 ac73% of homes64% of homes
Year builtnewer than198764% of homes69% of homes

About 856 County Route 21

How much is 856 County Route 21, Windham, NY worth?

The TopHap Estimate for 856 County Route 21, Windham, NY is $685,929 as of Jul 14, 2026. The likely range is $596,679 to $775,179. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

How big is 856 County Route 21, Windham, NY?

856 County Route 21, Windham, NY has 3 bedrooms, 2 bathrooms, 1,902 square feet of living space and a 2.60-acre lot.

When was 856 County Route 21, Windham, NY built?

856 County Route 21, Windham, NY was built in 1987, making it 39 years old. It is a contemporary home. The building has 2 stories.

What schools serve 856 County Route 21, Windham, NY?

856 County Route 21, Windham, NY is assigned to Windham Ashland Central School (elementary), rated B-. All sit in Windham-Ashland-Jewett Central School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 856 County Route 21, Windham, NY compare to other homes in Windham 12496?

Among the 2,275 homes in Windham 12496, it is worth more than 62% of them ($685,929 against a typical $553,082), its price per square foot is higher than 52% of them ($361 against a typical $354), it is bigger than 62% of them (1,902 ft² against a typical 1,672 ft²), its lot is bigger than 73% of them (2.6 ac against a typical 1 ac) and it is newer than 64% of them (1987 against a typical 1986). Measured against all of Greene County, it is worth more than 87% 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 856 County Route 21, Windham, NY?

The 2024 property tax bill for 856 County Route 21, Windham, NY was $4,740. The county assessed it at $284,700.

Closest homes

More homes in Windham 12496

Assigned schools

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