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Single Family ResidenceResidential
$1,104,333$313 / 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 90How 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
Last sold for $425,000 on Jul 2, 1999

302 COUNTY ROUTE 21B

CHATHAM, NY 12037
4
Beds
4 / 1
Baths
3,530 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.
5.11 ac
Lot SizeThe size of the land the home sits on, from county records.
1842
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

$1.1M
$991K low$1.2M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$425,000 · Jul 2, 1999

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$15,201 (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.$650,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$120,600
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$529,400
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$650,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,083,333

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.45
39
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
19
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
59
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
87
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.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.8 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%

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
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.2012
Lot (acres)The size of the land the home sits on, from county records.5.11
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
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Patio · 616 ft²Porch · 690 ft²

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

H
Chatham High SchoolB+
High · Grades 9–12 · 1.7 mi
E
Mary E Dardess Elementary SchoolC+
Elementary · Grades PK–5 · 1.9 mi
M
Chatham Middle SchoolC-
Middle · Grades 6–8 · 2.1 mi

District: Chatham Central School District

Neighborhood · ZIP 12037These 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.112
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.84
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.82%
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.6.4%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.8%
PopulationHow many people live in this area.3,018
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.81 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$92,746
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$118,079
Average tempThe average temperature here across a full year.45°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

302 County Route 21b 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 91% of homes in Columbia County
  • Bigger than 96% of homes in Columbia County
  • Has a bigger lot than 74% of homes in Columbia County
  • Older than 96% of homes in Columbia County

What homes are worth in Chatham 12037

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

This home
$204K$1.8M

This home is worth more than 90% of homes in Chatham 12037.

How it measures up in Chatham 12037

The dot is this home. The mark in the middle is the typical home in Chatham 12037.

Estimated value$1,104,333
CheaperTypical $487,699Pricier

Pricier than 90% of homes nearby

Price per ft²$313
CheaperTypical $283Pricier

Pricier than 62% of homes nearby

Living area3,530 ft²
SmallerTypical 1,850 ft²Bigger

Bigger than 93% of homes nearby

Lot size5.11 ac
SmallerTypical 1.4 acBigger

Bigger than 69% of homes nearby

Year built1842
OlderTypical 1950Newer

Newer than 6% of homes nearby

How 302 County Route 21b ranks against every home in each area.
MeasureThis homeChatham 12037Columbia County
Estimated valuepricier than$1,104,33390% of homes91% of homes
Price per ft²pricier than$31362% of homes59% of homes
Living areabigger than3,530 ft²93% of homes96% of homes
Lot sizebigger than5.11 ac69% of homes74% of homes
Year builtnewer than18426% of homes4% of homes

About 302 County Route 21b

How much is 302 County Route 21b, Chatham, NY worth?

The TopHap Estimate for 302 County Route 21b, Chatham, NY is $1,104,333 as of Jul 14, 2026. The likely range is $991,276 to $1,217,390. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 302 County Route 21b, Chatham, NY last sell?

302 County Route 21b, Chatham, NY last sold on Jul 2, 1999 for $425,000, according to the county's recorded deed.

How big is 302 County Route 21b, Chatham, NY?

302 County Route 21b, Chatham, NY has 4 bedrooms, 4 bathrooms, 3,530 square feet of living space and a 5.11-acre lot.

When was 302 County Route 21b, Chatham, NY built?

302 County Route 21b, Chatham, NY was built in 1842, making it 184 years old. It is a traditional/old home. The building has 2 stories.

What schools serve 302 County Route 21b, Chatham, NY?

302 County Route 21b, Chatham, NY is assigned to Chatham High School (high), rated B+; Mary E Dardess Elementary School (elementary), rated C+; Chatham Middle School (middle), rated C-. All sit in Chatham Central School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 302 County Route 21b, Chatham, NY compare to other homes in Chatham 12037?

Among the 1,439 homes in Chatham 12037, it is worth more than 90% of them ($1,104,333 against a typical $487,699), its price per square foot is higher than 62% of them ($313 against a typical $283), it is bigger than 93% of them (3,530 ft² against a typical 1,850 ft²), its lot is bigger than 69% of them (5.11 ac against a typical 1.4 ac) and it is newer than 6% of them (1842 against a typical 1950). Measured against all of Columbia County, it is worth more than 91% 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 302 County Route 21b, Chatham, NY?

The 2025 property tax bill for 302 County Route 21b, Chatham, NY was $15,201. The county assessed it at $650,000.

More homes on County Route 21b

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More homes in Chatham 12037

Assigned schools

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