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Rural ResidenceResidential
$985,978$344 / 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 89How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026

435 ROUTE 21

HILLSDALE, NY 12529
3
Beds
2
Baths
2,864 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.
78.92 ac
Lot SizeThe size of the land the home sits on, from county records.
1850
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

$986K
$877K low$1.1M high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$11,152 (2026)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$607,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$323,800
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$283,200
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$607,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$979,032

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.36
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
11
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
57
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.
21
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.Rural Residence
StyleThe architectural style of the home, such as ranch or colonial.Traditional/Old
CountyCOLUMBIA
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.1992
Lot (acres)The size of the land the home sits on, from county records.78.92
HeatingThe type of heating system in the home.Hot Water
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
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Shed · 46,000 ft²

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.

E
Taconic Hills Elementary SchoolC+
Elementary · Grades PK–6 · 6.8 mi
M
Taconic Hillsjunior/Senior High SchoolC
Middle · Grades 7–12 · 6.8 mi

District: Taconic Hills Central School District

Neighborhood · ZIP 12529These 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.152
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.89
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.57

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.67%
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.12%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.9%
PopulationHow many people live in this area.2,972
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.45 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$84,611
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$122,730
Average tempThe average temperature here across a full year.46°F
Annual precipHow much rain and melted snow falls here in a typical year.46 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.52%

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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

435 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 89% of homes in Columbia County
  • Costs more per square foot than 71% of homes in Columbia County
  • Bigger than 89% of homes in Columbia County
  • Has a bigger lot than 97% of homes in Columbia County
  • Older than 94% of homes in Hillsdale 12529

What homes are worth in Hillsdale 12529

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

This home
$222K$2.3M

This home is worth more than 78% of homes in Hillsdale 12529.

How it measures up in Hillsdale 12529

The dot is this home. The mark in the middle is the typical home in Hillsdale 12529.

Estimated value$985,978
CheaperTypical $584,913Pricier

Pricier than 78% of homes nearby

Price per ft²$344
CheaperTypical $359Pricier

Pricier than 45% of homes nearby

Living area2,864 ft²
SmallerTypical 1,660 ft²Bigger

Bigger than 88% of homes nearby

Lot size78.92 ac
SmallerTypical 3.36 acBigger

Bigger than 96% of homes nearby

Year built1850
OlderTypical 1969Newer

Newer than 6% of homes nearby

How 435 Route 21 ranks against every home in each area.
MeasureThis homeHillsdale 12529Columbia County
Estimated valuepricier than$985,97878% of homes89% of homes
Price per ft²pricier than$34445% of homes71% of homes
Living areabigger than2,864 ft²88% of homes89% of homes
Lot sizebigger than78.92 ac96% of homes97% of homes
Year builtnewer than18506% of homes7% of homes

About 435 Route 21

How much is 435 Route 21, Hillsdale, NY worth?

The TopHap Estimate for 435 Route 21, Hillsdale, NY is $985,978 as of Oct 21, 2026. The likely range is $877,170 to $1,094,786. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 435 Route 21, Hillsdale, NY last sell?

435 Route 21, Hillsdale, NY last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 435 Route 21, Hillsdale, NY?

435 Route 21, Hillsdale, NY has 3 bedrooms, 2 bathrooms, 2,864 square feet of living space and a 78.92-acre lot.

When was 435 Route 21, Hillsdale, NY built?

435 Route 21, Hillsdale, NY was built in 1850, making it 176 years old. It is a traditional/old home. The building has 2 stories.

What schools serve 435 Route 21, Hillsdale, NY?

435 Route 21, Hillsdale, NY is assigned to Taconic Hills Elementary School (elementary), rated C+; Taconic Hillsjunior/Senior High School (middle), rated C. All sit in Taconic Hills Central School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 435 Route 21, Hillsdale, NY compare to other homes in Hillsdale 12529?

Among the 1,722 homes in Hillsdale 12529, it is worth more than 78% of them ($985,978 against a typical $584,913), its price per square foot is higher than 45% of them ($344 against a typical $359), it is bigger than 88% of them (2,864 ft² against a typical 1,660 ft²), its lot is bigger than 96% of them (78.92 ac against a typical 3.36 ac) and it is newer than 6% of them (1850 against a typical 1969). Measured against all of Columbia County, it is worth more than 89% 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 435 Route 21, Hillsdale, NY?

The 2026 property tax bill for 435 Route 21, Hillsdale, NY was $11,152. The county assessed it at $607,000.

More homes on Route 21

Closest homes

More homes in Hillsdale 12529

Assigned schools

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