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Single Family ResidenceResidential
$573,677$198 / 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 88How 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 $300,000 on Oct 17, 2012

21 SOUTH ST

PATTERSON, NY 12563
4
Beds
3
Baths
2,895 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.
0.31 ac
Lot SizeThe size of the land the home sits on, from county records.
1890
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
4
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$574K
$506K low$642K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$300,000 · Oct 17, 2012

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$11,737 (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.$419,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$112,800
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$306,200
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$395,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$419,000

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.39
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
24
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.
98
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
15
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
CountyPUTNAM
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.1960
Lot (acres)The size of the land the home sits on, from county records.0.31
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, Basement
PoolWhether the property has a pool, and what kind, such as in-ground.No
ViewThe type of view from the property, or another feature of the site that affects value.Waterfront
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Porch · 170 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
Matthew Paterson Elementary SchoolB+
Elementary · Grades KG–4 · 0.4 mi
M
George Fischer Middle SchoolC
Middle · Grades 5–8 · 5.5 mi
H
Carmel High SchoolB
High · Grades 9–12 · 6.9 mi

District: Carmel Central School District

Neighborhood · ZIP 12563These 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.74
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.106
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.87

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.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.21%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.16%
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.8,720
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.363 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$103,016
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$129,595
Average tempThe average temperature here across a full year.49°F
Annual precipHow much rain and melted snow falls here in a typical year.50 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.58%

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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 South 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 more than 70% of homes in Patterson 12563
  • Costs less per square foot than 98% of homes in Putnam County
  • Bigger than 90% of homes in Patterson 12563
  • Has a smaller lot than 68% of homes in Putnam County
  • Older than 97% of homes in Putnam County

What homes are worth in Patterson 12563

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

This home
$196K$951K

This home is worth more than 70% of homes in Patterson 12563.

How it measures up in Patterson 12563

The dot is this home. The mark in the middle is the typical home in Patterson 12563.

Estimated value$573,677
CheaperTypical $481,163Pricier

Pricier than 70% of homes nearby

Price per ft²$198
CheaperTypical $293Pricier

Pricier than 7% of homes nearby

Living area2,895 ft²
SmallerTypical 1,728 ft²Bigger

Bigger than 90% of homes nearby

Lot size0.31 ac
SmallerTypical 0.47 acBigger

Bigger than 37% of homes nearby

Year built1890
OlderTypical 1969Newer

Newer than 4% of homes nearby

How 21 South St ranks against every home in each area.
MeasureThis homePatterson 12563Putnam County
Estimated valuepricier than$573,67770% of homes49% of homes
Price per ft²pricier than$1987% of homes2% of homes
Living areabigger than2,895 ft²90% of homes88% of homes
Lot sizebigger than0.31 ac37% of homes32% of homes
Year builtnewer than18904% of homes3% of homes

About 21 South St

How much is 21 South St, Patterson, NY worth?

The TopHap Estimate for 21 South St, Patterson, NY is $573,677 as of Sep 24, 2026. The likely range is $505,573 to $641,781. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 South St, Patterson, NY last sell?

21 South St, Patterson, NY last sold on Oct 17, 2012 for $300,000, according to the county's recorded deed.

How big is 21 South St, Patterson, NY?

21 South St, Patterson, NY has 4 bedrooms, 3 bathrooms, 2,895 square feet of living space and a 0.31-acre lot.

When was 21 South St, Patterson, NY built?

21 South St, Patterson, NY was built in 1890, making it 136 years old. The building has 2 stories.

What schools serve 21 South St, Patterson, NY?

21 South St, Patterson, NY is assigned to Matthew Paterson Elementary School (elementary), rated B+; George Fischer Middle School (middle), rated C; Carmel High School (high), rated B. All sit in Carmel Central School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 South St, Patterson, NY compare to other homes in Patterson 12563?

Among the 2,663 homes in Patterson 12563, it is worth more than 70% of them ($573,677 against a typical $481,163), its price per square foot is higher than 7% of them ($198 against a typical $293), it is bigger than 90% of them (2,895 ft² against a typical 1,728 ft²), its lot is bigger than 37% of them (0.31 ac against a typical 0.47 ac) and it is newer than 4% of them (1890 against a typical 1969). Measured against all of Putnam County, it is worth more than 49% 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 South St, Patterson, NY?

The 2024 property tax bill for 21 South St, Patterson, NY was $11,737. The county assessed it at $419,000.

More homes on South St

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Assigned schools

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