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Miscellaneous (Residential)Residential
$467,374
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 49How 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 $30,000 on Dec 9, 2004

21 THOMAS ST

CHATHAM, NY 12037
0
Baths
0.65 ac
Lot SizeThe size of the land the home sits on, from county records.
2007
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
4
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$467K
$228K low$706K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$30,000 · Dec 9, 2004

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,530 (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.$121,200 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$63,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$57,700
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$121,200
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$157,403

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.
59
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
89
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.Miscellaneous (Residential)
CountyCOLUMBIA
Lot (acres)The size of the land the home sits on, from county records.0.65
PoolWhether the property has a pool, and what kind, such as in-ground.No

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.

M
Chatham Middle SchoolB
Middle · Grades 6–8 · 0.4 mi
E
Mary E Dardess Elementary SchoolC-
Elementary · Grades PK–5 · 0.6 mi
H
Chatham High SchoolB
High · Grades 9–12 · 0.8 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%

Owner Tools

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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 Thomas 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.

  • Has a smaller lot than 68% of homes in Columbia County
  • Newer than 95% of homes in Chatham 12037

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
$210K$1.8M

This home is worth more than 50% 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$467,374
CheaperTypical $467,301Pricier

Pricier than 50% of homes nearby

Lot size0.65 ac
SmallerTypical 1.5 acBigger

Bigger than 38% of homes nearby

Year built2007
OlderTypical 1948Newer

Newer than 95% of homes nearby

How 21 Thomas St ranks against every home in each area.
MeasureThis homeChatham 12037Columbia County
Estimated valuepricier than$467,37450% of homes52% of homes
Lot sizebigger than0.65 ac38% of homes32% of homes
Year builtnewer than200795% of homes94% of homes

About 21 Thomas St

How much is 21 Thomas St, Chatham, NY worth?

The TopHap Estimate for 21 Thomas St, Chatham, NY is $467,374 as of Sep 24, 2026. The likely range is $228,447 to $706,301. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Thomas St, Chatham, NY last sell?

21 Thomas St, Chatham, NY last sold on Dec 9, 2004 for $30,000, according to the county's recorded deed.

When was 21 Thomas St, Chatham, NY built?

21 Thomas St, Chatham, NY was built in 2007, making it 19 years old. The building has 1 story.

What schools serve 21 Thomas St, Chatham, NY?

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

How does 21 Thomas St, Chatham, NY compare to other homes in Chatham 12037?

Among the 1,439 homes in Chatham 12037, it is worth more than 50% of them ($467,374 against a typical $467,301), its lot is bigger than 38% of them (0.65 ac against a typical 1.5 ac) and it is newer than 95% of them (2007 against a typical 1948). Measured against all of Columbia County, it is worth more than 52% 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 Thomas St, Chatham, NY?

The 2026 property tax bill for 21 Thomas St, Chatham, NY was $2,530. The county assessed it at $121,200.

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Assigned schools

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