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Single Family ResidenceResidential
$256,228$174 / 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 Aug 30, 2026
Last sold for $180,000 on Apr 21, 2021

21 UNION ST

HANNACROIX, NY 12087
3
Beds
1
Baths
1,474 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.
0.51 ac
Lot SizeThe size of the land the home sits on, from county records.
1820
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$256K
$239K low$273K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$180,000 · Apr 21, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,433 (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.$98,300 (2024)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$11,300
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$87,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$98,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$239,756

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.35
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
10
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
61
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
86
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.
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
CountyGreene
Lot (acres)The size of the land the home sits on, from county records.0.51
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Raised (Unspecified)
HeatingThe type of heating system in the home.Hot Water
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 · 440 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
Pieter B Coeymans SchoolC-
Elementary · Grades PK–5 · 2.2 mi
H
Ravena-Coeymans-Selkirk Senior High SchoolC
High · Grades 9–12 · 4.1 mi
M
Ravena-Coeymans-Selkirk Middle SchoolB
Middle · Grades 6–8 · 4.1 mi

District: Ravena-Coeymans-Selkirk Central School District

Neighborhood · ZIP 12087These 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.68
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.83
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.54

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.84%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.13%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.9%
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.1,234
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.58 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$85,319
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$97,830
Average tempThe average temperature here across a full year.46°F
Annual precipHow much rain and melted snow falls here in a typical year.41 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

21 Union St 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 81% of homes in Hannacroix 12087
  • Costs less per square foot than 85% of homes in Hannacroix 12087
  • Has a smaller lot than 91% of homes in Hannacroix 12087
  • Older than 98% of homes in Greene County

What homes are worth in Hannacroix 12087

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

This home
$180K$733K

This home is worth more than 19% of homes in Hannacroix 12087.

How it measures up in Hannacroix 12087

The dot is this home. The mark in the middle is the typical home in Hannacroix 12087.

Estimated value$256,228
CheaperTypical $344,662Pricier

Pricier than 19% of homes nearby

Price per ft²$174
CheaperTypical $218Pricier

Pricier than 15% of homes nearby

Living area1,474 ft²
SmallerTypical 1,512 ft²Bigger

Bigger than 48% of homes nearby

Lot size0.51 ac
SmallerTypical 3 acBigger

Bigger than 9% of homes nearby

Year built1820
OlderTypical 1970Newer

Newer than 3% of homes nearby

How 21 Union St ranks against every home in each area.
MeasureThis homeHannacroix 12087Greene County
Estimated valuepricier than$256,22819% of homes22% of homes
Price per ft²pricier than$17415% of homes18% of homes
Living areabigger than1,474 ft²48% of homes46% of homes
Lot sizebigger than0.51 ac9% of homes28% of homes
Year builtnewer than18203% of homes2% of homes

About 21 Union St

How much is 21 Union St, Hannacroix, NY worth?

The TopHap Estimate for 21 Union St, Hannacroix, NY is $256,228 as of Aug 30, 2026. The likely range is $239,026 to $273,430. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Union St, Hannacroix, NY last sell?

21 Union St, Hannacroix, NY last sold on Apr 21, 2021 for $180,000, according to the county's recorded deed.

How big is 21 Union St, Hannacroix, NY?

21 Union St, Hannacroix, NY has 3 bedrooms, 1 bathrooms, 1,474 square feet of living space and a 0.51-acre lot.

When was 21 Union St, Hannacroix, NY built?

21 Union St, Hannacroix, NY was built in 1820, making it 206 years old. It is a traditional/old home. The building has 2 stories.

What schools serve 21 Union St, Hannacroix, NY?

21 Union St, Hannacroix, NY is assigned to Pieter B Coeymans School (elementary), rated C-; Ravena-Coeymans-Selkirk Senior High School (high), rated C; Ravena-Coeymans-Selkirk Middle School (middle), rated B. All sit in Ravena-Coeymans-Selkirk Central School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Union St, Hannacroix, NY compare to other homes in Hannacroix 12087?

Among the 668 homes in Hannacroix 12087, it is worth more than 19% of them ($256,228 against a typical $344,662), its price per square foot is higher than 15% of them ($174 against a typical $218), it is bigger than 48% of them (1,474 ft² against a typical 1,512 ft²), its lot is bigger than 9% of them (0.51 ac against a typical 3 ac) and it is newer than 3% of them (1820 against a typical 1970). Measured against all of Greene County, it is worth more than 22% 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 Union St, Hannacroix, NY?

The 2024 property tax bill for 21 Union St, Hannacroix, NY was $1,433. The county assessed it at $98,300.

More homes on Union St

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